I have a hardware raid 1 (mirrored) configuraton with 2 disks. Intel Matrix Storage raid controller.
The OS is linux/debian.
SMART is reporting that one disk has exceeded threshold values for surface defects. Hard Disk Sentinel recommends immediate replacement.
I have read the Intel Matrrix Storage manual. I am now seeking further confirmation before I proceed, as I don't want to make any mistakes when I replace the drive.
(1) Must the replacement disk be the same model, or at least have the same geometry (1938021 cyl, 16 heads, 63 sectors)? Or is it sufficient if it has equal or greater capacity?
UPDATED: I've just got an answer to this from http://www.tomshardware.com/forum/259807-32-raid: It's OK if the replacement disk is equal or greater capacity.
(2) Is the following procedure correct? Have I omitted anything? Are there any traps I should be careful not to fall into?
(a) Backup all partitions. Make sure I have a backup of the directory tree and files and not just partition images. Be confident that the backup is restorable.
(b) Remove the faulty disk from the RAID matrix. (Ctrl-I while booting to get into the Matrix Storage Manager ROM). I know the serial number of the faulty disk. Be careful to remove the correct disk. Do not convert to non-RAID, just remove the faulty disk.
(c) How will RAID react when it has only one disk? It can't be a RAID 1 configuration.
(d) Replace the faulty disk by a new disk. Do I need to partition the disk first, to match the partitions on the good disk? Or will Matrix Manager do that?
(e) Start the computer. Ctrl_I to get into Matrix Manager ROM. Select recovery options. Rebuild the new disk from the good disk. Wait for it to finish then continue with the startup.
Do I need to add the new disk to the RAID array before selecting the recovery options?
Have I forgotten anything important?
Thank you. Gerry
The OS is linux/debian.
SMART is reporting that one disk has exceeded threshold values for surface defects. Hard Disk Sentinel recommends immediate replacement.
I have read the Intel Matrrix Storage manual. I am now seeking further confirmation before I proceed, as I don't want to make any mistakes when I replace the drive.
(1) Must the replacement disk be the same model, or at least have the same geometry (1938021 cyl, 16 heads, 63 sectors)? Or is it sufficient if it has equal or greater capacity?
UPDATED: I've just got an answer to this from http://www.tomshardware.com/forum/259807-32-raid: It's OK if the replacement disk is equal or greater capacity.
(2) Is the following procedure correct? Have I omitted anything? Are there any traps I should be careful not to fall into?
(a) Backup all partitions. Make sure I have a backup of the directory tree and files and not just partition images. Be confident that the backup is restorable.
(b) Remove the faulty disk from the RAID matrix. (Ctrl-I while booting to get into the Matrix Storage Manager ROM). I know the serial number of the faulty disk. Be careful to remove the correct disk. Do not convert to non-RAID, just remove the faulty disk.
(c) How will RAID react when it has only one disk? It can't be a RAID 1 configuration.
(d) Replace the faulty disk by a new disk. Do I need to partition the disk first, to match the partitions on the good disk? Or will Matrix Manager do that?
(e) Start the computer. Ctrl_I to get into Matrix Manager ROM. Select recovery options. Rebuild the new disk from the good disk. Wait for it to finish then continue with the startup.
Do I need to add the new disk to the RAID array before selecting the recovery options?
Have I forgotten anything important?
Thank you. Gerry
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