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Need filesystem hang and mount status monitoring in PowerHA
We are using a lot of PowerHA product on many AIX servers. Also there are many kinds of other company's High Availability products such as Service Guard of HPE, Redhat cluster, MSCS of MS etc. In some other HA solutions, there is a function which ...
Hold PowerHA Resource Group w/ node that had it last
After experiencing a loss of both 10Gb links between data centers in a stretched cluster, the primary node that held the resource group rebooted 4 times thinking the secondary node had acquired the RG. Heartbeat was lost on the repository disk. Se...
Description: Since updating cluster installations from AIX V7.1 TL3 SP5/PowerHA V7. 1.3 SP3 to AIX V7.1 TL4 SP2/PowerHA V7.1.3 SP5 we observe a different behaviour in the "ping" tests, originating from netmon.cf. On the older release only the sour...
Add prefered site option to the tiebreaker solution in PHA
When using the current tiebreaker solution for split brain protection then it's a random based decision which site will win. For some setup it would be helpful if there would be an option to define a preferred site.
Monitor and correct PPRC consistency status to ensure mirrored disks are in-sync
Why is it useful? Failover may cause significant data loss if mirrored disks are out-of-sync for an extended period. By monitoring and automatically correcting or alerting PPRC out-of-sync condition will minimize data loss in the event of a failov...
Straighten Event handling in PowerHA / SystemMirror
PowerHA uses "events" to handle transitions to various states. (At least some of) These events are poorly described in the documentation and the usability of PowerHA would greatly profit from an improvement there. Furthermore - as described in the...
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