Dell MD3600I, MD3620I Displaying Failover Alert, Changing the Cache Settings on the Storage Array

Displaying Failover Alert

You can change the failover alert delay for a storage array. The failover alert delay lets you delay the logging of a critical event if the multi-path driver transfers virtual disks to the non-preferred controller. If the multi-path driver transfers the virtual disks back to the preferred controller within the specified delay period, a critical event is not logged. If the transfer exceeds this delay period, then a virtual disk-not-on-preferred-path alert is issued as a critical event. You can also use this option to minimize multiple alerts when more than one virtual disk fails over because of a system error, such as a failed host adapter.

For more information, see the PowerVault Modular Disk Storage Manager online help topics.

Changing the Cache Settings on the Storage Array

To change the storage array cache settings:

1In the AMW, select Storage Array→ Change→ Cache Settings. The Change Cache Settings window is displayed.

2Select or enter the percentage of unwritten data in the cache to trigger a cache flush in Start flushing.

3Select or enter the percentage of unwritten data in the cache to stop a cache flush in progress in Stop flushing.

4Select the appropriate Cache block size.

A smaller cache size is a good choice for file-system use or database- application use. A larger cache size is a good choice for applications that generate sequential I/O, such as multimedia.

5In the Enter Password dialog, type the current password for the storage array, and click OK.

Configuration: About Your Storage Array

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