72 Configuration: About Your Storage ArrayEnabling Premium FeaturesYou can enable premium features on the storage array. To enable thepremium features, you must obtain a feature key file specific to the premiumfeature that you want to enable from your storage supplier.To enable premium features:1 From the toolbar in AMW, select Storage Array Premium Features.The Premium Features and Feature Pack Information window isdisplayed.2 Select the relevant premium feature, and click Enable.The Select Feature Key File dialog is displayed.3 Navigate to the relevant folder, select the appropriate key file, and clickOK.4 Click Close.For more information, see the PowerVault Modular Disk Storage Manageronline help topics.Failover Alert DisplayYou can change the failover alert delay for a storage array. The failover alertdelay lets you delay the logging of a critical event if the multi-path drivertransfers virtual disks to the non-preferred controller. If the multi-path drivertransfers the virtual disks back to the preferred controller within the specifieddelay period, a critical event is not logged. If the transfer exceeds this delayperiod, then a virtual disk-not-on-preferred-path alert is issued as a criticalevent. You can also use this option to minimize multiple alerts when morethan one virtual disk fails over because of a system error, such as a failed hostadapter.For more information, see the PowerVault Modular Disk Storage Manageronline help topics.Changing the Cache Settings on the Storage ArrayTo change the storage array cache settings:1 In the AMW, select Storage Array Change Cache Settings.The Change Cache Settings window is displayed.
