IBM DS3500

Replacing a hot-swap hard disk drive
Drive problems include any malfunctions that delay, interrupt, or prevent successful
I/O activity between the hosts and the hard disk drives in the storage subsystem.
This includes transmission problems between the host controllers and the drives.
This section explains how to replace a failed hard disk drive.
Note: If you want to remove a hard disk drive that is not in a failed or bypass state,
always use the DS Storage Manager software either to place the drive in a
failed state or to place the array that is associated with the drive (or drives)
in an offline state before you remove the drive from the storage subsystem.
Attention: Failure to replace a hard disk drive in its correct bay might result in
loss of data. If you are replacing a hard disk drive that is part of a configured array
and logical drive, be sure to install the replacement hard disk drive in the correct
bay. See the hardware and software documentation that comes with the DS3500 to
determine whether there are restrictions regarding hard disk drive configurations.
To replace a hot-swap hard disk drive, complete the following steps:
1. Read the safety information that begins on page xiii and “Best practices
guidelines” on page 5.
2. Use the Storage Manager software to print a new storage system profile.
3. Determine the location of the drive that you want to remove.
Attention: Never hot-swap a drive when its associated green activity LED is
flashing. Hot-swap a drive only when its associated amber status LED is lit and
not flashing.
4. Remove the drive (see “Removing a hard disk drive” on page 105).
5. Unpack the new drive. Save all packing material in case you have to return the
drive.
Note: Use Table 15 on page 142 to make sure that you replace the hard disk
drive into the correct bay.
6. Install the new drive (see “Installing a hard disk drive” on page 106).
7. Check the drive LEDs:
v When a drive is ready for use, the green activity LED is lit and the amber
status LED is off.
v If the amber status LED is lit and is not flashing, remove the drive from the
unit and wait 70 seconds; then, install the drive again.
8. Make sure that the drive is shown in the Subsystem Management window.
Note: If you are replacing more than one hard disk drive, replace only one drive at
a time.
Replacing multiple drives
This section provides guidelines for upgrading the drives in the storage subsystem.
Read the software documentation and this entire section to determine whether you
should use this procedure, use a modified version of this procedure, or use a
different procedure that is provided by the operating system.
Notes:
1. Instructions that are provided with the software supersede any instructions and
information in this document.
108 System Storage DS3500 and EXP3500: Installation, User’s, and Maintenance Guide