Acting Against Read Error During Raid1 Rebuilding Process; Recovering From Hdd Failure In Both Sides; Performing Restoration From Backup Hdd - Hitachi HF-W2000 35 User Manual

9. RAID1

9.4.3 Acting against read error during RAID1 rebuilding process

When a read error is detected on the copy source HDD during the RAID1 rebuilding process,
the area from which no data is read is notified by the message dialog below upon completion
of the RAID1 rebuilding process. (The sample below indicates that the read error has been
detected on the existing HDD installed in drive bay 1.)
If this happens, back up the data and replace the copy source HDD as well with a new one.
Refer the replacement procedure to Subsection 5.4.3, "Detaching/attaching hard disk drive
(HDD)".
After the replacement, set up the Equipment all over again according to Subsection 9.2.2,
"Procedure of new setup" and then restore the data from the backup file according to
Section 8.1 "Backing Up Files".
Alternatively, restore the Equipment by utilizing a backup HDD (see Subsection 9.5.2,

"Performing restoration from backup HDD").

9.4.4 Recovering from HDD failure in both sides

To recover from HDD failure in both sides, first replace the HDDs in both sides with new
ones according to Subsection 5.4.3, "Detaching/attaching hard disk drive (HDD)".
After the replacement, set up the Equipment all over again according to Subsection 9.2.2,
"Procedure of new setup" and then restore the data from the backup file according to
Section 8.1 "Backing Up Files".
Alternatively, restore the Equipment by utilizing a backup HDD (see Subsection 9.5.2,
"Performing restoration from backup HDD").
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