IBM SYSTEM STORAGE EXP3000 - INTEROPERABILITY MATRIX..., Installation And User Manual

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Hard disk drives
The EXP3000 supports SAS hard disk drives. These IBM drives come
pre-installed in a drive tray, ready for installation. (Do not detach the drive
from the tray.) You can install the drives directly into the 12 drive bays on
the front of the EXP3000. Be sure to record the location information for
each drive before you remove it. Make sure that you keep track of the
drives and their corresponding bays. Also, record the location information in
the Installed-device records section of the Installation Guide .
Attention: If you reinstall a hard disk drive in the wrong bay, you can lose
data.
Hard disk drive LEDs
Each hard disk drive bezel has two LEDs that indicate the status for that
particular hard disk drive. The drive LED states and descriptions are as
follows:
LED LED state Description
Activity LED Green/flashing Flashes during read/write or
inquiry operations to the hard
disk drive.
Status LED Amber/flashing Flashes to indicate a hard
disk drive rebuild is under
way or that a hard disk drive
has been identified by the
system-management
software.
Status LED Amber On Lit continuously to indicate a
drive failure.
Replacing a hot-swap hard disk drive
Hard disk drive problems include any malfunctions that delay, interrupt, or prevent
successful I/O activity between the hosts and the hard disk drives in the EXP3000.
This includes transmission problems between the host controllers, the ESMs, and
the drives. This section explains how to replace a failed drive.
Attention: Failure to replace a hard disk drive in the correct bay might result in
loss of data. If you have data stored on the hard disk drive, label the drive before
you remove it. Then, when you replace the drive, install it in the same drive bay
from which you removed it.
Check the hardware and software documentation provided with your server to see if
there are restrictions regarding hard disk drive configurations. Some system
configurations might not allow mixing different hard disk drive capacities or types
within an array.
To replace a hot-swap hard disk drive, complete the following steps:
1. Read the instructions that come with the hard disk drive.
2. Read the safety information on page iii and “Installation guidelines” on page 21.
3. Determine the location of the hard disk drive that you want to remove.
Attention: Never hot-swap a hard disk drive when its green activity LED is
flashing. Hot-swap a drive only when its amber status LED is lit (not flashing) or
when the drive is inactive (activity LED is off).
Chapter 4. Replacing components
23