Reconfiguring Raid; To Reconfigure Raid; Configuring Raid For A P4800 G2 With 2 Tb Drives - HP StoreVirtual 4000 User Manual

Reconfiguring RAID

Reconfiguring RAID on a storage system or a VSA destroys any data stored on that storage system.
For VSAs, there is no alternate RAID choice, so the only outcome for reconfiguring RAID is to wipe
out all data.
Changing preconfigured RAID on a new storage system
RAID must be configured on individual storage systems before they are added to a management
group. To change the preconfigured RAID level of a storage system, make the change before
you add the storage system to a management group.
Changing RAID on storage systems in management groups
You cannot reconfigure RAID on a storage system that is already in a management group. To
change the RAID configuration for a storage system that is in a management group, you must
first remove it from the management group.
CAUTION:

To reconfigure RAID

1. In the navigation window, log in to the storage system and select the Storage category.
2. On the RAID Setup tab, click RAID Setup Tasks and select Reconfigure RAID.
3. Select the RAID configuration from the list.
4. Click OK.
5. Click OK on the message that opens.
RAID starts configuring.
NOTE: A storage system may take several hours for the disks to synchronize in a RAID 10, RAID
5, or RAID 6 configuration. During this time, performance will be degraded. When the RAID status
on the RAID Setup tab shows Normal, the disks provide fully operational data redundancy, and
performance returns to normal.

Configuring RAID for a P4800 G2 with 2 TB drives

RAID 6 is the default configuration for P4800 G2 storage blades with 2 TB capacity or greater.
HP recommends using the default configuration.
Configuring the disks to RAID 5 takes a few minutes in the CMC. You must first remove the
storage system from the management group. Once configuration is complete, you can add
the storage system to the management group, while RAID 5 initialization occurs in the
background. The CMC is available during initialization and you can track the status of the
initialization using the Hardware Information tab in the CMC. The RAID 5 initialization takes
a number of days, depending upon how much I/O is going to the storage system. System
performance is impacted if the system is actively participating in a cluster that is hosting storage
volumes.
If reconfiguring the disks to RAID 6 is necessary, the process takes approximately six hours.
You must first remove the storage system from the management group. RAID 6 initialization
must finish before adding the storage system to the management group. During initialization,
the CMC is unavailable. However, you should leave the CMC open while RAID initialization
continues, and track the status of the initialization on the status bar at the bottom of the CMC.
When RAID 6 initialization has finished, the CMC becomes available again, and you can
add the storage system to the management group.
Changing the RAID configuration will erase all the data on the disks.
Reconfiguring RAID 33