Specifications

Status LEDs
LED Status Definition
Green (Top) Flashing Drive activity
Off Drive not spinning and no activity
On Steady Drive spinning and no activity
Slow Blink One link not active
Amber (Bottom) On Steady Service action
Concurrent maintenance
Both links are bad
Slow Blink Identify only
Off Power good
Preinstallation Considerations
Consider the following when replacing disk drives in the system unit:
v Use caution when you are handling all disk drives. Disk drives are more likely to be
damaged during installation and service than at any other time. A fall of as little as
.25 inch, bumping, or rough handling can all cause latent failures.
v Media drives are particularly sensitive to electrostatic discharge. Follow all
electrostatic-handling procedures prior to handling the media drive.
Removing Hot-Plug SCSI Disk Drives
Note: Disk drives in the two-position drive bay cannot be removed with the power on.
See “Replacing Non-Hot-Plug Drives” on page 359.
Review the information in “Disk Drive Options” on page 307 before removing a disk
drive.
To remove a SCSI hot-plug disk drive, perform the following steps:
1. Back up the information from the disk drive to another drive.
2. Deconfigure the drive you are removing from the system. See “Deconfiguring SCSI
Hot-Swap Disk Drives” on page 313.
3. If you have not already done so, remove the front cover as described in
“Removing the Covers” on page 301.
Chapter 9. Removal and Replacement Procedures 309