Replacing a hard disk

Procedure

1. Make sure you have the new hard disk(s) present.

2. Shut down the server (see Rebooting or shutting down a cluster for more information).

3. Remove the power cables from the PSUs.

   The hard disk(s) can now be replaced.

4. Remove the left and center fan assemblies (fan 1 and fan 2). See Replacing a fan for this procedure.

5. Identify the hard disk to replace.

   Note that there are two (2) hard disks in the server. Hard disk A is on the left (behind fan assembly number 1) and hard disk B is on the right (behind fan assembly number 2). Labels on the chassis identify the disk drives.

6. Disconnect the power and SATA cables from the hard disk being replaced. (Do not remove the SATA cable from the motherboard.)

   

7. Remove the hard disk to be replaced.

   Each hard disk is in a carrier (bracket) held to the bottom of the chassis by a thumbscrew on the right side and a tab that fits into a slot on the chassis floor on the left side.

   1. Remove the thumbscrew on the right side of the hard disk carrier.

   2. Gently lift the right side of the hard disk about 1/8 inch (1/4 centimeter) and slide the disk carrier to the right.

   3. Once the disk carrier is completely disengaged from the chassis, remove it from the server.

8. Install the replacement hard disk:

   NoteThe replacement hard disk should be mounted in the lower position of the carrier. If the hard disk is not mounted in a carrier, you can mount the replacement hard disk in the old carrier. If the hard disk is mounted in the upper position, it should be moved to the lower position in the carrier. In either of the cases described above, you must remove and reuse the four (4) TORX10 mounting screws that hold the hard disk in the carrier before mounting/remounting the hard disk.

   1. Insert the tabs on the left side of the disk carrier into the slots on the floor of the server chassis.

   2. Move the carrier to the left until the tabs are fully engaged and the thumbscrew is aligned. (Note that the right side of the carrier must be elevated slightly to clear part of the chassis.)

   3. Tighten the thumbscrew to secure the drive carrier. Do not overtighten the thumbscrew.

   4. Connect the power and SATA cables to the replacement hard disk.

9. Replace the fan assemblies (see Replacing a fan for this procedure).

10. Replace the fascia.

11. Reconnect the power cables to the PSUs.

12. Start the server.

13. Log in to the server as the root user.

    1. Use SSH to connect to the server using the manager account.

    2. To gain access as root, press Ctrl-D to exit the console, then enter su –. When you are prompted for the root password, enter it for the root user account.

14. Run the script /opt/raid-monitor/bin/recover-replaced-drive.sh, which will partition the disk appropriately, update the server's internal RAID configuration, and initiate rebuilding the RAID pair. Rebuilding the RAID pair ensures all data is accurate across both hard disks.

    After the script has finished, no further interaction is required. The RAID system rebuilds the disk as a background operation, and events are logged as the RAID partitions rebuild and become fully fault tolerant. The status indicator will turn to indicate normal operation (solid or flashing blue) once the RAID configuration has been repaired.

15. Log out.

16. Properly dispose of the old hard disk; do not attempt to re-install or re-use it.

Parent Topic

• 3080 and 3090 G1 Hardware Reference

  Overview of the Hitachi NAS Platform. The 3080 and 3090 G1 hardware reference explains how to configure the hardware and software, and how to replace faulty components.