HP NetRAID 1Si Controller User Manual

Page 90

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Chapter 4

HP NetRAID Express Tools

84

To format a physical drive, it must be in the Fail state. (You can change it to the
Fail state by choosing Objects, then Physical Drive, then Fail Drive.)

To format a hard drive, select Format, then select the drive you want to format
from the drives listed. Press F10 to start the format.

Rebuild Option

Choose the Rebuild option from the HP NetRAID Express Tools Management
menu to rebuild one or more failed disk drives. When the Physical Drives
Selection menu opens, choose the drive you want to rebuild by highlighting it.
Press the Spacebar to select the drive, F10 to start the Rebuild, F2 to view drive
information, and F3 to view logical drives. See "Rebuilding Data" in Chapter 5 for
further information.

Check Consistency Option

Choose this option to verify the redundancy data in logical drives using RAID
levels 1, 3, 5, 10, 30, or 50. RAID levels 3, 5, 30, and 50 use an extra drive to
store parity data blocks; parity is checked between these parity data blocks and the
selected drives. RAID levels 1 and 10 use duplicate data drives (mirroring); the
duplicate data is verified.

When you choose Check Consistency, the parameters appear of the existing
logical drives on the current adapter and a selection menu listing the logical drives
by number is displayed.

1. Press the arrow keys to highlight the desired logical drives.

2. Press the Spacebar to select or deselect a drive for consistency checking.

3. Press F2 to select or deselect all the logical drives.

4. Press F10 to begin the consistency check. A progress indicator for each

selected logical drive is displayed.

5. You may cancel a consistency check in progress by pressing Esc.

6. When the consistency check is finished, press any key to clear the progress

display and press Esc to return to the Tools Management menu.

Check Consistency should be run if the system shuts down irregularly, such as if
the system hangs or suffers a power failure. It is also recommended to run
consistency checks every two to four weeks to ensure that bad blocks on the disk
drive are mapped out. Check Consistency always remedies inconsistencies. Check
Consistency will only fail if the firmware could not complete parity and data
writes due to a power-failure or a system hang, or if the logical drive degraded or
failed when a physical drive went offline. In an inconsistent stripe, firmware
always updates the parity stripe to restore consistency.

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