IBM DS3950, Руководство пользователя и инструкция по установке

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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 DS Storage Manager software to check the status of the unit. Correct
any problems that are reported. Upgrade the storage subsystem controller to
the level that supports the new E-DDMs, if required.
3. Back up the data in the arrays and logical drives that are configured using the
E-DDMs that you are replacing.
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 22.
4.
Unpack the new E-DDMs.
Set the E-DDMs on a dry, level surface away from magnetic fields. Save the
packing material and documentation in case you need to return them.
5. Use the DS Storage Manager software to ensure that the array that was
defined using these E-DDMs is in optimal (not degraded) state before
manually failing the first E-DDM you want to replace. If the array is in
degraded state, use the recovery procedures to bring the array into the
optimal state.
Make sure of the following:
v
You fail only one E-DDM.
v
The software status display shows a failed status for the appropriate
E-DDM.
v
The amber Drive fault LED (on the front bezel below the E-DDM) is on.
Attention: Removing the wrong E-DDM can cause data loss. Make sure that
you remove only the failed E-DDM FRU. The Drive fault LED below the
failed E-DDM FRU should be on.
If you remove an active E-DDM accidentally, wait at least 30 seconds and then
reinstall it. Because you failed two E-DDMs in a RAID array, the array might
be marked failed by the controller. This array will not be available to the host
for I/O. See the DS Storage Manager software for further recovery
instructions. Do not attempt to replace any E-DDMs until the array is brought
back to optimal state.
6. Use the procedures in “Replacing hot-swap hard disk drives” on page 72 to
remove the failed drive. Use the procedures in “Installing hot-swap hard disk
drives” on page 70 to install the new E-DDMs into the EXP395.
The new E-DDM automatically reconstructs the data after you install it in the
drive slot.
During data reconstruction, the amber Drive fault LED might come on for a
few minutes, then turn off when the green Drive activity LED begins flashing.
A flashing Drive activity LED indicates that data reconstruction is in progress.
Note:
If your storage subsystem has active hot spares, data might not start
copying to the new E-DDM until the data is reconstructed on the hot
spare. This increases the time that is required to complete the
procedure.
7. Check the green Drive activity LED and the amber Drive fault LED above the
new E-DDM FRUs.
Chapter 5. Installing and replacing components
77