HP P3410A HP NetRAID Series User Guide - Page 90

Rebuild Option, Check Consistency Option

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Chapter 4 HP NetRAID Express Tools 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. 84

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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.