IBM DS3500 Installation, User & Maintenance Guide

- Up to 12 LFF 3.5–inch 6 Gbps SAS or NL SAS hard disk drives (DS3512
and EXP3512)
- Up to 24 SFF 2.5–inch 6 Gbps SAS or NL SAS hard disk drives (DS3524
and EXP3524)
– For optimum performance, never insert a drive into the storage subsystem
without first confirming the drive firmware level. Contact your IBM
technical-support representative for information about supported drive
firmware levels.
– Use of unsupported drives can cause the storage subsystem to fail.
– After you remove a drive, wait 70 seconds before you replace or reseat the
drive to allow the drive to spin down. Failure to do so might cause
unpredictable results.
v Drive labels: A label is provided on the front of each hard disk drive. Use this
label to record the location information for each drive before you remove it. Be
sure to keep a record of the drives and their corresponding bays. Also, record the
location information in Table 15 on page 142. If you install a drive in the wrong
bay, you might lose data.
v Drive LEDs: Each drive tray has two associated LEDs, a green activity LED and
an amber status LED. These LEDs indicate the status for that drive.
The hard disk drive LEDs on the DS3512 storage subsystem and EXP3512
expansion enclosure are shown in Figure 84. The hard disk drive LEDs on the
DS3524 storage subsystem and EXP3524 expansion enclosure are shown in
Figure 85.
Hard disk drive activity LED (green)
When this LED flashes, it indicates that there is activity to the drive.
Hard disk drive status LED (amber)
When this LED flashes, it indicates that the drive has been identified by
the software. When this LED is lit and not flashing, it indicates that the
drive has failed.
Hard disk drive activity LED
Hard disk drive status LED
Figure 84. DS3512 storage subsystem and EXP3512 expansion enclosure hard disk drive
LEDs
Hard disk
drive status
LED (amber)
Hard disk
drive activity
LED (green)
Figure 85. DS3524 storage subsystem and EXP3524 expansion enclosure hard disk drive
LEDs
104 System Storage DS3500 and EXP3500: Installation, User’s, and Maintenance Guide

IBM DS3500 Specifications

General

Brand	IBM
Model	DS3500
Category	Storage
Language	English