Replacing an ES5000/8000 Hard Drive

A single failed drive can be replaced without exiting the ES5000/8000 application or shutting down the operating system. These are hot-swappable SCSI hard disk drives that can be removed and reinstalled while the power is on. The appliance automatically detects the removal of a failed or defective drive and the installation of its replacement.

This is an appliance with RAID 1 storage. Single hard drive failures do not result in an appliance failure. In the event of a single disk failure, the other disk in the RAID mirror takes over, and the appliance continues to function normally. When a replacement for the failed drive is installed, the RAID controller automatically begins rebuilding the new drive.

Hardware Configuration

On the ES5000/8000, the RAID 1 mirror consists of the leftmost two hard disks (viewed from the front of the unit). The two bays on the right do not contain drives.

Removal of the other drive during this procedure or during the rebuild will result in system failure.

Static-Sensitive Devices


Electrostatic discharge (ESD) can damage electronic components. To prevent damage to any printed circuit boards, it is important to handle them very carefully. The following measures are generally sufficient to protect your equipment from ESD damage.

  • Be sure that the appliance is properly grounded to the chassis ground through the AC power cord or enclosure frame.
  • Touch a grounded metal object before removing the drive from the antistatic bag.
  • Handle drive by its edges only; do not touch components on the bottom.
Removal of the other drive during this procedure or during the rebuild will result in system failure.
Disk drives are static-sensitive devices. Please make proper use of the wrist strap included in the disk field-replaceable unit (FRU) kit.

To replace a hard drive:

  1. First remove the front bezel to expose the disk drives. On a failed disk drive, the red LED on the front of the drive is illuminated (the bottom LED of the two drive-specific LEDs) and the ES5000/8000’s audible alarm is sounding.

  2. Press the colored release button beside the drive’s LEDs on the failed drive to unlatch the handle.

  3. Swing the handle fully out to disengage the drive.

  4. Slide the drive halfway out of the drive bay and wait for it to spin down. Allow 10-20 seconds before removing the drive from the drive bay.

  5. While the system is running, insert the replacement disk in the empty slot. Insert the replacement drive into the disk bay and slide the disk straight to the back of the bay.

  6. Swing the handle in toward the appliance. Continue pushing the handle in until you feel it lock in place.

  7. Press firmly on the both the left and right edges of the drive with both thumbs. Applying this pressure ensures that the drive is fully engaged, even if no movement of the drive is felt.

  8. After the failed disk is replaced, the green and red LEDs on the new disk start to blink and the audible alarm is silenced, indicating that the mirror is rebuilding. Once the rebuild is complete, the red LED goes off. The front bezel can then be replaced.