Table of Contents
Advertisement
3. Click on "Confirm the Operation" and click on the "Submit" button. Use this option to verify the
correctness of the redundant data in a volume set. For example, in a system with dedicated
parity, volume set check means computing the parity of the data disk drives and comparing the
results to the contents of the dedicated parity disk drive. The checking percentage can also be
viewed by clicking on "RAID Set Hierarchy" in the main menu.
6.6.6. Schedule Volume Check
A volume check is a process that verifies the integrity of redundant data. To verify RAID 3, 5, 6, 30, 50 or
60 redundancies, a volume check reads all associated data blocks, computes parity, reads parity, and
verifies that the computed parity matches the read parity.
Volume checks are very important because they detect and correct parity errors or bad disk blocks in
the drive. A consistency check forces every block on a volume to be read, and any bad blocks are
marked; those blocks are not used again. This is critical and important because a bad disk block can
prevent a disk rebuild from completing. We strongly recommend that you run consistency checks on a
regular basis—at least once per week (set on 'Scheduler). Volume checks degrade performance, so you
can also run them when the system is idle (set by "Checking After System Idle).
Note: Please make sure of the inconsistency source generated by parity error or bad block before you
click on the recovery method. Otherwise, you will lose the recovery data.
6.6.7. Stop Volume Set Check
Use this option to stop the "Check Volume Set" function.
6.6.8. Download Volume Key File
Get the key file which was generated by CLI "vsf genkey" command or API code for your RAID controller
adapters. You can follow below steps to download volume key file.
1. To download volume key file into the firmware, move the mouse cursor to "Download Volume
Key file" link and click on it. The "Download Volume Encryption Key File" screen appears.
2. Click on "Browse". Look in the location to which the key file was generated. Select the file name
and click "Open".
81
Advertisement
Table of Contents
