Введение
Кластер IBM-мейнфреймов
Cluster of IBM mainframes
В вычислительной технике Parallel Sysplex — это кластер IBM-мейнфреймов, работающих совместно как единое системное представление с z/OS. Используемый для аварийного восстановления, Parallel Sysplex объединяет совместный доступ к данным и параллельные вычисления, позволяя кластеру до 32 систем разделять рабочую нагрузку для обеспечения высокой производительности и высокой доступности.
In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS. Used for disaster recovery, Parallel Sysplex combines data sharing and parallel computing to allow a cluster of up to 32 systems to share a workload for high performance and high availability.
Протокол времени сервера
В компьютерных системах важно поддерживать точное время. Например, в системе обработки транзакций процесс восстановления реконструирует данные транзакций из файлов журналов. Если для ведения журнала данных транзакций используются временные метки, и временные метки двух связанных транзакций перепутаны в фактической последовательности, то реконструкция базы данных транзакций может не соответствовать состоянию, существовавшему до начала процесса восстановления. Протокол времени сервера (STP) может использоваться для обеспечения единого источника времени между несколькими серверами. Основываясь на концепциях протокола сетевого времени, один из серверов System z назначается HMC в качестве основного источника времени (уровень 1). Затем он отправляет сигналы времени серверам уровня 2 с использованием сцепленных каналов. Серверы уровня 2, в свою очередь, отправляют сигналы времени серверам уровня 3. Для обеспечения доступности один из серверов может быть назначен в качестве резервного источника времени, а третий сервер может быть назначен в качестве арбитра, чтобы помочь резервному серверу времени определить, следует ли ему принять на себя роль основного в случае возникновения исключительных ситуаций. STP доступен на серверах System z с 2005 года. Более подробная информация о STP представлена в "Руководстве по планированию протокола времени сервера".
Maintaining accurate time is important in computer systems. For example, in a transaction processing system the recovery process reconstructs the transaction data from log files. If time stamps are used for transaction data logging, and the time stamps of two related transactions are transposed from the actual sequence, then the reconstruction of the transaction database may not match the state before the recovery process. Server Time Protocol (STP) can be used to provide a single time source between multiple servers. Based on Network Time Protocol concepts, one of the System z servers is designated by the HMC as the primary time source (Stratum 1). It then sends timing signals to the Stratum 2 servers through use of coupling links. The Stratum 2 servers in turn send timing signals to the Stratum 3 servers. To provide availability, one of the servers can be designated as a backup time source, and a third server can be designated as an Arbiter to assist the Backup Time Server in determining if it should take the role of the Primary during exception conditions. STP has been available on System z servers since 2005. More information on STP is available in “Server Time Protocol Planning Guide”.
Географически рассеянный параллельный сиплекс
Географически распределенный параллельный сиплекс (GDPS) – это расширение параллельного сиплекса мейнфреймов, расположенных, потенциально, в разных городах. GDPS включает конфигурации для одного или нескольких сайтов:
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: Основан на синхронной технологии Peer to Peer Remote Copy (PPRC) для использования в пределах одного центра обработки данных. Данные копируются с основного устройства хранения на вторичное. В случае сбоя основного устройства хранения система автоматически переключает вторичное устройство в режим основного, как правило, без прерывания работы приложений.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS Metro: Основан на технологии синхронного зеркалирования данных (PPRC), которая может использоваться на отдельных мейнфреймах. В двухсистемной модели оба сайта могут администрироваться как единая система. В случае сбоя системы или устройства хранения восстановление может происходить автоматически с минимальной или полной сохранностью данных.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS Global XRC: Основан на асинхронной технологии Extended Remote Copy (XRC) без ограничений по расстоянию. XRC копирует данные между устройствами хранения на двух сайтах таким образом, что в случае сбоя может быть потеряно лишь несколько секунд данных. В случае сбоя пользователь должен инициировать процесс восстановления. После запуска процесс автоматически восстанавливает данные со вторичных устройств хранения и переконфигурирует системы.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS Global GM: Основан на асинхронной технологии IBM Global Mirror без ограничений по расстоянию. Предназначен для восстановления после полного отказа на одном сайте. Активирует вторичные устройства хранения и резервные системы.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS Metro Global GM: Это конфигурация для систем с более чем двумя системами/сайтами, предназначенная для аварийного восстановления. Она основана на GDPS Metro в сочетании с GDPS Global GM.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS Metro Global XRC: Это конфигурация для систем с более чем двумя системами/сайтами, предназначенная для аварийного восстановления. Она основана на GDPS Metro в сочетании с GDPS Global XRC.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS Continuous Availability: Это решение для аварийного восстановления и обеспечения непрерывной доступности, основанное на двух или более сайтах, разделенных неограниченным расстоянием, работающих с одними и теми же приложениями и имеющих одинаковые данные для обеспечения балансировки рабочей нагрузки между сайтами. IBM Multi site Workload Lifeline, благодаря функциям мониторинга и маршрутизации рабочей нагрузки, играет ключевую роль в решении GDPS Continuous Availability.
Geographically Dispersed Parallel Sysplex (GDPS) is an extension of Parallel Sysplex of mainframes located, potentially, in different cities. GDPS includes configurations for single site or multiple site configurations:
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.
GDPS HyperSwap Manager: This is based on synchronous Peer to Peer Remote Copy (PPRC) technology for use within a single data center. Data is copied from the primary storage device to a secondary storage device. In the event of a failure on the primary storage device, the system automatically makes the secondary storage device the primary, usually without disrupting running applications. GDPS Metro: This is based on synchronous data mirroring technology (PPRC) that can be used on mainframes apart. In a two system model, both sites can be administered as if they were one system. In the event of a failure of a system or storage device, recovery can occur automatically, with limited or no data loss. GDPS Global XRC: This is based on asynchronous Extended Remote Copy (XRC) technology with no restrictions on distance. XRC copies data on storage devices between two sites such that only a few seconds of data may be lost in the event of a failure. If a failure does occur, a user must initiate the recovery process. Once initiated, the process is automatic in recovering from secondary storage devices and reconfiguring systems. GDPS Global GM: This is based on asynchronous IBM Global Mirror technology with no restrictions on distance. It is designed for recovery from a total failure at one site. It will activate secondary storage devices and backup systems. GDPS Metro Global GM: This is a configuration for systems with more than two systems/sites, for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global GM. GDPS Metro Global XRC: This is a configuration for systems with more than two systems/sites for purposes of disaster recovery. It is based on GDPS Metro together with GDPS Global XRC. GDPS Continuous Availability: This is a disaster recovery / continuous availability solution, based on two or more sites, separated by unlimited distances, running the same applications and having the same data to provide cross site workload balancing. IBM Multi site Workload Lifeline, through its monitoring and workload routing, plays an integral role in the GDPS Continuous Availability solution.