IBM TotalStorage DS4300 Turbo, Инструкция по установке и эксплуатации

Страница: 112 / 164

2. Use the Storage Manager client to check the status of the unit. Correct any
problems that are reported.
3. Back up the data on the drives 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 59.
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. Use the Storage Manager client to ensure that the array that was defined
using these drives is in optimal (not degraded) state before manually failing the
first drive 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 that:
v You fail only one drive
v The software status display shows a failed status for the appropriate drive
v The amber Drive fault LED (on the front bezel below the drive) is on
Attention: Removing the wrong drive can cause data loss. Make sure that
you remove only the failed drive CRU. The Drive fault LED below the failed
drive CRU should be on.
If you remove an active drive accidentally, wait at least 70 seconds and then
reinstall it. Because you failed two drives 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 Storage Manager client online Help for further recovery
instructions. Do not attempt to replace any drives until the array is brought
back to optimal state.
After you remove a drive CRU, wait 70 seconds before replacing or reseating
the drive CRU to allow the drive to properly spin down. Failure to do so may
cause undesired events.
6. Use the procedures in “Replacing hot-swap drives” on page 77 to remove the
failed drive. Use the procedures in “Installing hot-swap drives” on page 75 to
install the new drives into the storage server.
The new drive 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 drive 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 below the
new drive CRUs.
Make sure that the Drive activity LEDs are on and the Drive fault LEDs are off.
Note: The Drive fault LEDs might flash intermittently while the drives spin up.
v
If the Drive activity LED is off, the drive CRU might not be installed correctly.
Remove the drive CRU, wait 30 seconds, and then reinstall it.
82
IBM TotalStorage DS4300 Fibre Channel Storage Server: Installation and User’s Guide