Managing DS8000 HyperSwap with independent auxiliary storage pools (IASPs)
DS8000® HyperSwap® with IASPs is typically used with PowerHA® LUN switching technology to provide coverage for planned and unplanned storage and server outages, and can also be used with live partition mobility to further minimize downtime for planned server outages.
The following table contains the recommended technology to use for several outages and scenarios,
both planned and unplanned.
| Outage type | Recovery type |
|---|---|
| Planned IBM® i OS upgrade or maintenance | CRG switchover. For more information, see CRG Planned switchover with HyperSwap and LUN switching. |
| Planned server firmware upgrade or outage | LPM switch or CRG switchover. For more information, see CRG Planned switchover with HyperSwap and LUN switching or Live partition mobility switch with HyperSwap and affinity. |
| Planned storage upgrade or outage | HyperSwap switchover. For more information, see HyperSwap planned switchover of SYSBAS, HyperSwap planned switchover of independent auxiliary storage pool (IASP), or HyperSwap planned switchover with HyperSwap and LUN switching. |
| Planned server hardware upgrade or outage | CRG switchover. For more information, see CRG Planned switchover with HyperSwap and LUN switching. |
| Unplanned IBM i OS outage | CRG failover. For more information, see CRG Failover HyperSwap and LUN switching. |
| Unplanned server firmware outage | CRG failover. For more information, see CRG Failover HyperSwap and LUN switching. |
| Unplanned storage outage | HyperSwap failover. For more information, see HyperSwap failover with HyperSwap and LUN switching. |
| Unplanned server hardware outage | CRG failover. For more information, see CRG Failover HyperSwap and LUN switching. |