When Stop Error Occurs; When Operating A Raid System - NEC Express5800 Series Maintenance Manual

Chapter 1 Maintenance
5.5

When STOP Error Occurs

[?] Cannot turn the power OFF at the blue screen (STOP error screen)
→
If you want to turn off the power at the blue screen, execute forced shutdown (continue to press
the POWER switch for 4 seconds).
5.6

When Operating a RAID System

[?] Unable to rebuild hard disk drive
Is the capacity of the hard disk drive to be rebuilt enough?
→
Use a hard disk drive with the same capacity as that of the faulty hard disk drive.
Is the Logical Drive RAID0?
→
RAID0 cannot be rebuilt because it has no redundancy. Replace the failed Hard disk drive,
recreate the configuration information, initialize it, and recover the drive using backup data.
[?] Fails to automatically rebuild the Hard disk drive
Did you secure sufficient time for replacing the Hard disk drive (hot swap)?
→
To make auto-rebuild work, secure at least 90 seconds from when a Hard disk drive is removed
to when the drive is installed.
[?] Hard disk drive failed
→
Contact your sales representative.
[?] Unable to perform Consistency Check
Is the Logical Drive Critical or Degraded?
→
Replace the failed Hard disk drive with new one, and then perform Rebuild.
Is RAID0 configured for the Logical Drive?
→
RAID0 has no data redundancy, and therefore, Consistency Check is disabled in the RAID0
configuration.
[?] Physical device is not correctly displayed on Universal RAID Utility:
→
If you use LSI Embedded MegaRAID, a part of information on a physical device is not correctly
displayed on Universal RAID Utility.
[?] Cannot set Write-Back for Cache Mode
→
The current cache of RAID Controller is displayed on Virtual Disks – Properties – Policies –
Write. If an additional battery is faulty, is not connected, or insufficiently charged, the Cache
Mode is changed to WThru (Write Through) even if you specify WBack (Write Back).
For the description of the Cache Mode, refer to Chapter 2 (4. RAID System Configuration).
Express5800/B120e-h Maintenance Guide
5. Troubleshooting
37