Dell PowerVault MD3200 CLI Guide - Page 94
Resetting a RAID Controller Module, Enabling RAID Controller Module Data Transfer, Resetting Battery
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Resetting a RAID Controller Module CAUTION: When you reset a RAID controller module, the RAID controller module is not available for I/O operations until the reset is complete. If a host is using virtual disks owned by the RAID controller module being reset, the I/O directed to the RAID controller module is rejected. Before resetting the RAID controller module, ensure that a multipath driver is installed on all hosts using these virtual disks. If a multipath driver is not installed, the virtual disks are not available. Resetting a RAID controller module is the same as rebooting the RAID controller module processors. To reset a RAID controller module, run the following command: reset controller [(0 | 1)] Enabling RAID Controller Module Data Transfer At times, a RAID controller module might become quiescent while running diagnostics. If this occurs, the RAID controller module might become unresponsive. To revive a RAID controller module, run the following command: enable controller [(0 | 1)] dataTransfer Resetting Battery Age NOTE: A smart battery module does not require the battery age to be reset. After replacing the batteries in the storage array, you must reset the age of the battery, either for an entire storage array or one battery in a specific RAID controller module. To reset the age to zero days, run the following command: reset storageArray batteryInstallDate [controller= (0 | 1)] Removing Persistent Reservations Persistent reservations preserve virtual disk registrations and prevent hosts, other than the host defined for the virtual disk, from accessing the virtual disk. You must remove persistent reservations before you perform the following changes to your configuration: • Change or delete logical unit number (LUN) mappings on a virtual disk holding a reservation. • Delete virtual disk groups or virtual disks that have any reservations. 94 Maintaining a Storage Array