|
GDPS V3.6 Enhancements
Improved coordinated disaster recovery across heterogeneous platforms by supporting:
- Distributed Cluster Management (DCM) support for GDPS/GM
This is designed to allow the management and coordination of planned and unplanned outages across distributed servers for GDPS/GM together with Veritas Cluster Server managed clusters.
- GDPS/PPRC Multiplatform Resiliency for System z (xDR) support for LSS Sharing between z/VM LPARs
This is designed to support mulitple z/VM LPARs sharing the same disk Logical Subsystem with GDPS/PPRC. It also allows multiple z/VM LPARs to share the same disk using the z/VM Cross System Extension (CSE) function.
Increased availability with:
- Reduced-impact initial copy and resynchronization of Metro Mirror volumes
This reduces the exposure window where the environment is without Freeze or HyperSwap protection by reducing the need to throttle down the copy process. There is no need to schedule copies to off-shift times to run. Rather, they can now run any time of the day without impacting production work.
- Remote Pair FlashCopy support
This is designed to provide the capability to allow a FlashCopy relationship where the FlashCopy target device is a Metro Mirror primary device. The value of FlashCopy can now be combined with the value of HyperSwap.
- GDPS/PPRC Timer Support
This allows the GDPS controlling system (K-sys) to continue processing, even when the server it is running on loses its time source and becomes unsynchronized. The K-sys is will be able to complete any Freeze or HyperSwap processing it may have started instead of being in a disabled WTOR state.
- Two K-Systems support:
GDPS/PPRC Multiplatform Resiliency for System z (xDR) allows GDPS to manage Linux guests on z/VM and native Linux on System z LPARs with the same quality of service as for z/OS LPARs. This includes support for HyperSwap for Linux data, and the ability of GDPS to manage Linux and z/VM LPARs, and IPL the Linux and z/VM operating systems. Two controlling system (K-sys) LPARs can now be defined, both with awareness of the non-z/OS environment. The two K-sys support removes the various exposures associated with running with a single K-sys and provides the same level of protection for xDR with two K-sys that z/OS enjoys with two K-sys.
Simplified system management with:
- New GDPS Health Checks
Three new GDPS Health Check are being delivered with GDPS 3.6 can be used to inform customers when their configuration differs from IBM-provided best practice values.
- Query Services
GDPS V3.6 will introduce a new interface to allow queries on GDPS monitored resources. This is designed to help simplify problem determination.
More information on GDPS V3.6 can be found in announcement 309-002 dated February 24, 2009: GDPS V3.6: Enterprise-wide infrastructure availability and disaster recovery.
GDPS V3.5 Enhancements:
Heterogeneous Data Management - Distributed Cluster Management support designed to coordinate disaster recovery across System z and non-System z servers. It interfaces with:
- Symantec Veritas Cluster Server
- Tivoli System Automation Application Manager (Planned for 2008)
Availability
- Incremental Resync for z/OS Global Mirror - can significantly reduce time needed to restore D/R environment after a HyperSwap in a three-site Metro / z/OS Global Mirror configuration. (Planned for 2H08)
DS8000 Integration
FlashCopy SE - Can lower storage requirements for temporary data sets
z/OS Global Mirror Multiple Reader - Can improve throughput with GDPS/XRC while reducing RPO
Extended Distance FICON - Can reduce cost of mirroring over FICON with z/OS Global Mirror
System Management
- Graphic User Interface expanded to include GDPS/PPRC HyperSwap Manager and GDPS/Global Mirror.
- Capacity Management for automating OOCoD and CBU without manual entering of activation key
- BCPM Support - Cooperation with Tivoli Business Continuity Process Manager provides an integration of GDPS configuration data in a Change Management Data Base and an integration of GDPS as operational manger in a workflow support for Business Continuity.
Value
- SDM enabled for zIIP adds value to GDPS/XRC configuration. May lower cost of ownership while improving CP optimization
New Service Support Policy
Starting with GDPS V3.5, IBM provides up to three years of support.
GDPS V3.4 Enhancements:
Graphical user interface offers a graphical Web interface for many GDPS/PPRC standard actions and monitoring functions.
Health Checks extends the z/OS Health Checker infrastructure by providing GDPS specific checks for best practices. These checks help ensure that GDPS best practices are adhered to even as a customer evolves and changes their configuration. More checks are planned to be made available as they are developed.
GDPS/PPRC MultiPlatform Resiliency support is expanded with GDPS/PPRC V3.4. GDPS is now designed to provide management and automation for both planned and unplanned actions for Linux guests under z/VM. This new support removes the prior requirement for z/VM, supporting Linux systems running in LPARs on System z servers for planned and uplanned actions.
GDPS/PPRC Metro Mirror re-establishment is designed to recover secondary devices after a FREEZE event by doing a HyperSwap failover. This is designed to mitigate the disaster recovery exposure by limiting the time period that devices are unsynchronized. It can also facilitate disaster recovery testing in the production environment, again by reducing the time to re-establish PPRC after a test.
GDPS/PPRC HyperSwap coexistence provides coordination between HyperSwap and TDMF synchronize and relabel activities. With GDPS V3.4 and TDMF support, TDMF is designed to automatically issue the commands to disable and re-enable HyperSwap. This can help further automate a disk migration, speed up the process, and reduce human errors. In addition, GDPS V3.4 supports coexistance with HyperSwap function and IMS/XRF.
GDPS/PPRC HyperSwap Manager system management provides a new single command to make the secondary disks available after a freeze event. Previously, recover required multiple panel interactions with a couple of interactions per LSS pair in the configuration. This can provide enhanced systems management and simplified operator procedures for recovery management.
GDPS/XRC and GDPS/Global Mirror IPL Message Automation is designed to simplify recovery by further automating responses to IPL messages generated to a NIP console in a GDPS/XRC and GDPS/Global Mirror environment. Some messages that GDPS now automates include several key messages relating to initializing a sysplex and couple data sets.
GDPS/XRC Zero Suspend Flash Copy is designed to provide the ability to FlashCopy XRC secondary devices without interrupting disaster recovery protection by not suspending and resynchronizing secondary disk.
GDPS/Global Mirror Additional FlashCopy support is available with GDPS V3.4 to help query, manage, and monitor the status of an additional FlashCopied version of the data for GDPS/Global Mirror. This copy may be used for performing disaster recovery testing, providing a back up copy before resynchronizing, or to back up production data without affecting the production workload. In addition, these additional FlashCopy disks do not need to be defined in the GDPS R-Sys I/O definitions. This FlashCopy without Unit Control Block (UCB) capability can be used by systems running out of device numbers.
GDPS Metro/Global Mirror Incremental Resynchronization in the GDPS V3.4 timeframe is designed to help improve the recovery capability of GDPS Metro/Global Mirror by allowing the Global Mirror session to be quickly reestablished between the primary and the remote recovery Site if there is a failure at the intermediary site. In addition,when the failing disks are brought back into operation, they can be brought back to currency without a full copy, with only an incremental resynchronization.
More information on GDPS V3.6 can be found in announcement 309-002 dated February 24, 2009: GDPS V3.6: Enterprise-wide infrastructure availability and disaster recovery.
|
