HP StorageWorks 3000 RAID Array - Manual (Page 85)

Using Command Console 3-39
Compaq Confidential – Need to Know Required
Writer: Bob Young Project: Command Console V2.2 for the RAID Array 3000 (Pedestal and Rack Mount Models) User’s Guide Comments:
Part Number: AA-RBF2C-TE File Name: d-ch3 Using Command Console.doc Last Saved On: 12/5/00 10:20 AM
Password Security
Password security prevents unauthorized users from changing or removing
storage configurations. You created a password when you installed a
Command Console agent on a system. The password is encrypted and stored
in the file where the Command Console agent resides. To set or change a
password, use the Agent Configuration utility.
Command Console allows a valid password to make configuration changes for
one hour. If there is no user input for one hour, Command Console resets itself
to view only. Any configuration change resets the timer and keeps the
password active for one hour.
Managing and Creating Spare Devices
Making a spare device part of a virtual disk will protect the integrity of the
RAID setup. This proves especially true for virtual disks that have RAID
requirements of two or more devices. Should one device fail, the virtual disk
will automatically activate the spare device, as an instant replacement for the
failed one.
How a Spare Works
■ If a device fails in a RAID 1, RAID 0+1, RAID 4, or RAID 5 virtual
disk, the spare automatically replaces the failed device. The controller
reconstructs all virtual disks the failed device was a member of, as long
as the device was not part of a non-redundant virtual disk.
■ Once the controller writes data to a spare, the spare becomes part of the
same device group in which a device failed.
CAUTION: If a spare is smaller than the disk that failed, it will not be able to
replace that disk. The spare must be as large as the disk that failed.
To create a spare:
1. Click the device in the Storage window that you want to make as a
spare. The device must be available, and it must have a capacity equal to
or greater than the lowest capacity drive in the group for an automatic
failed drive replacement.
2. From the Storage menu, click Device, then click Make Spare.