Replacing Hot-Swap Drives - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

Replacing hot-swap drives

Drive problems include any malfunctions that delay, interrupt, or prevent successful
I/O activity between the hosts and the hard disk drives. This includes transmission
problems between the host controllers, the RAID controllers, and the drives. This
section explains how to replace a failed drive.
Notes:
1. Failure to replace the drives in their correct bays might result in loss of data. If
2. After you remove a drive CRU, wait 70 seconds before replacing or reseating
Use the following procedure to replace hot-swap drives:
1. Check the hardware and software documentation that is provided with the
2. Check the Storage Manager client online help for recovery procedures for a
3. Determine the location of the drive that you want to remove.
4. Remove the drive CRU.
you are replacing a drive that is part of a RAID level 1 or RAID level 5 logical
drive, ensure that you install the replacement drive in the correct bay.
the drive CRU to allow the drive to properly spin down. Failure to do so may
cause undesired events.
system to see if there are restrictions regarding hard disk drive configurations.
Some system fibre-channel configurations might not allow mixing different drive
capacities or types within an array.
drive that has failed. Follow the steps in the software procedure before you
continue with this procedure.
Attention: Never hot-swap a drive CRU when its green Activity LED is
flashing. Hot-swap a drive CRU only when its amber Drive fault LED is on and
not flashing or when the drive is inactive with the green Activity LED on and not
flashing.
If the drive is not in a failed state (as indicated by a lit amber LED), manually
fail the drive using the Storage Management client before attempting to remove
it from the drive slot.
a. Press on the inside of the bottom of the tray handle to release the blue latch
1 . See Figure 90 on page 124.
b. Pull the handle 2 on the tray 3 out into the open position.
c. Lift the drive CRU partially out of the bay.
d. To avoid possible damage to the drive 4 , wait at least 20 seconds before
you fully remove the drive CRU from the storage subsystem to allow for the
drive to spin down.
Chapter 5. Installing and replacing components
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