Replacing the Hard Disk

This section describes how to replace the hard disk as well as the precautions.

Precautions

Precautions for using the hard disks

Use hard disks purchased from Huawei. Otherwise, the system may not identify them.
Powering off the USG interrupts services. Install or replace the hard disks during off-peak hours.
Wear the ESD wrist strap while working on the USG to avoid possible damages to the USG and hard disks.
While holding a hard disk, do not touch the PCB board or squeeze the disk. Carry only one hard disk at a time. Do not vibrate, crash, or pile multiple hard disks up.
Put the hard disks inside ESD bags when they are not used.
For mapping relationships between the USG and hard disks, see Hardware Overview.

Tools

ESD bag

Replacing the Hard Disk (USG6515E, USG6525E, USG6550E, USG6555E, USG6560E, USG6565E, USG6580E, USG6585E)

If a hard disk is faulty (for example, a hard disk failure log is generated on the USG), you can replace the hard disk. The hard disk can be replaced no matter when the USG is powered on or off. If the USG is powered off, skip 1 and do not run the disk offline command. The following procedure guides you through hard disk replacement while the USG is powered on:

Ensure that all configurations are saved.
Run the disk offline command in the system view. Wait about 30 seconds until the system indicates that the hard disk stops working and then remove the hard disk to be replaced.

If you remove and insert a hard disk without running the disk offline command first, the hard disk may be damaged, data in the hard disk may be lost, or the system may stop responding to services.
1. Use the handler to pull the hard disk out of the slot.
2. Put the replaced hard disk into an ESD bag.
  Figure 1 Removing the hard disk (USG6515E, USG6525E, USG6550E, USG6555E, USG6560E, USG6565E, USG6580E, USG6585E)
Install the new hard disk, see Installing the Hard Disk.
Run the disk online command in the system view and then the display disk information command. If Filesystem Status is Mounted, the hard disk works properly.

Replacing the Hard Disk (USG6575E-B, USG6605E-B, USG6610E, USG6615E, USG6620E, USG6625E, USG6630E, USG6635E, USG6650E, USG6655E, USG6680E, USG6712E, USG6716E)

If a hard disk is faulty (for example, a hard disk failure log is generated on the USG), you can replace the hard disk. The hard disk can be replaced no matter when the USG is powered on or off. If the USG is powered off, skip 1 and do not run the disk offline command or press the OFL button. The following procedure guides you through hard disk replacement while the USG is powered on:

Ensure that all configurations are saved.
Run the disk offline command in the system view. Wait about 30 seconds until the system indicates that the hard disk stops working and then remove the hard disk to be replaced. Press and hold the OFL button for about four seconds until the OFL indicator is on. Then remove the hard disk unit to be replaced.

If you remove and insert a hard disk without running the disk offline command or press the OFL button first, the hard disk may be damaged, data in the hard disk may be lost, or the system may stop responding to services.
1. Press the button on the right of the hard disk tray to eject the handler.
2. Use the handler to pull the hard disk out of the slot.
3. Put the replaced hard disk into an ESD bag.
  Figure 2 Removing the hard disk (USG6575E-B, USG6605E-B, USG6610E, USG6615E, USG6620E, USG6625E, USG6630E, USG6635E, USG6650E, USG6655E, USG6680E, USG6712E, USG6716E)
Install the new hard disk, see Installing a Hard Disk.
Run the disk online command in the system view and then the display disk information command. If Filesystem Status is Mounted, the hard disk works properly.

Follow-up Procedure

After replacing the hard disk, collect all tools. If the replaced hard disk is faulty, fill in the Repair Transmission Sheet and send the faulty module with the Repair Transmission Sheet to the equipment supplier or the specified repair service provider.