Removing a Hard Disk

Scenarios

Remove a hard disk in any of the following scenarios:

• The hard disk is faulty.
• The hard disk needs to be replaced with a newer model.
• The hard disk has no free space.

• For details about how to erase data from a hard disk, see Erasing Storage Media Data.
• Before removing a hard disk, check the following:
  • If no OS is installed on the hard disk, the compute node does not need to be powered off.
  • If an OS is installed on the hard disk, and the hard disk is configured in a RAID with redundancy, the compute node does not need to be powered off.
  • If an OS is installed on the hard disk, and the hard disk is not configured in a RAID or is configured in a RAID without redundancy (for example, RAID 0), the compute node needs to be powered off.

Each child compute node supports a hard disk. Figure 5-15 shows the hard disk position.

Figure 5-15 Hard disk installation position

Prerequisites

Conditions

• You have determined whether data backup is required.
  • If the hard disk to be removed is not configured in a RAID or is configured in a RAID without redundancy (for example, RAID 0), you have need to back up data on the hard disk.
  • If the hard disk to be removed is configured in a RAID with redundancy, you can remove the hard disk without data backup.
• Refer to Safety Instructions.
• Remove the child compute nodes by referring to Removing a Child Compute Node.
• Place the compute node carefully on an electrostatic discharge (ESD) floor.

Data

Data preparation is not required for this operation.

Tools

• Electrostatic discharge (ESD) gloves.
• M3 phillips screwdriver.
• Packing materials, for example, ESD bags.

Procedure

1. Use the Phillips screwdriver to remove the three screws that secure the hard disk. See step (1) in Figure 5-16.
   Figure 5-16 Removing the hard disk
   

2. Remove the hard disk along the hard disk tray out of the child compute node. See step (2) in Figure 5-16.
3. Place the removed hard disk in an ESD bag.