|
|
|
|
| High Availability Option for HPSS |
IBM Global Services - Federal announces the High Availability option for HPSS. HA-HPSS* provides hardware redundancy for HPSS core
servers, complementing the ability to configure
redundancy in the data movers. The result
is a mass storage system that remains on-line,
in spite of failures in key hardware components.
|
High Availability Features:
- Minimize downtime
- Automatically recover from:
- Total failure of primary server computer
- Power failure
- Disk failure
- Disk adapter failure
- Network adapter failure and more...
|
Components:
- Standard HPSS software
- HACMP for AIX clustering software from IBM
- Redundant hardware components
|
|
Implementation Features
- Two HPSS core server machines: one primary and one standby.
- Primary computer services requests using "service interface."
- Metadata is mirrored across busses.
- "Keep alive" messages are exchanged between primary and standby over Ethernet and TTY cable (to prevent isolation).
- Network adapter failure causes a standby adapter to assume the IP and hardware address of the failed adapter.
- Failures of disk, disk adapter, and cables are resolved by AIX mirroring over dual busses.
- Primary computer failure results in the standby computer assuming the IP and hardware addresses of the service adapter, taking control of the metadata disks, and restarting HPSS.
|
*HA-HPSS is available from IBM by special bid arrangements.
For a printer-friendly PDF version of this
page, click here.
|
For questions about HPSS Services Offering from IBM, contact Jae Kerr or John Wilson
|
|
