IBM TotalStorage FAStT600, Инструкция по установке и эксплуатации

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The method you use depends on the following considerations:
v Which method most closely matches the recommended drive upgrade procedure
that is provided in the operating system or the storage-management software
documentation
v
Which RAID level is used on the affected drives (RAID 0 requires you to replace
all the drives at the same time)
v
How much downtime is acceptable as you swap the drives
v The number of drives in an array. Replacing drives one at a time is better suited
for arrays consisting of 3 to 5 drives. If you have more than 20 drives, consider
replacing all drives at the same time.
Replacing all drives at the same time
Use this procedure to replace all drives at the same time. You must use this method
if you are upgrading drives containing RAID 0 logical drives. All the data currently
on the drives is lost when you replace the drives; therefore, you must back up all
data that is currently on the drives. This procedure also requires you to turn off the
storage server, which makes the storage server (and any attached expansion units)
inaccessible to other users.
To replace all the drives at the same time, perform the following steps:
1. Read the following information:
v
The information in “Adding larger-capacity drives” on page 53, particularly
the paragraphs that discuss the differences between the two possible
upgrade procedures
v The information in your software documentation regarding drive upgrades
and installation
v
The documentation that comes with the new drives
Read all precautionary notes, kit instructions, and other information. Kit
instructions often contain the most current information regarding the drives
and their installation, plus upgrade or servicing procedures. Compare the kit
instructions with this procedure to determine if you need to modify this
procedure.
2. Use the storage-management software to check the status of the storage
server. Correct any problems that are reported.
3. Perform a complete backup of the drives that you are replacing.
You need the backup to restore data on the drives later in this procedure.
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling static-sensitive
devices, see “Handling static-sensitive devices” on page 49.
4. Unpack the new drives.
Set the drives on a dry, level surface away from magnetic fields. Save the
packing material and documentation in case you need to return the drives.
5. Perform the following steps:
a. Stop all I/O activity to the storage server and attached expansion units.
Make sure that:
1) All of the green Drive activity LEDs on the front of the storage server
(and on all attached expansion units) are not flashing.
2) The green Cache active LEDs are off on the front of the RAID
controllers.
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IBM TotalStorage FAStT600 Fibre Channel Storage Server: Installation and User’s Guide