Precautions for the use of USG6000 hard disks

The precautions on the use of USG6000 hard disks are as follows:
1. Precautions on hard disk replacement/capacity expansion
Precautions on the use of hard disks
a. Use Huawei hard disks. The system cannot recognize the hard disks provided by other vendors.
b. Before replacing a hard disk unit, run the disk offline command in the system view. Wait for about 30 seconds until the system displays that the hard disk stops working and then remove the hard disk unit. 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.
a. Powering off the USG interrupts services. Install or replace the hard disks during off-peak hours.
d. Wear an ESD wrist strap to protect the USG and hard disks from electrostatic damage.
e. Hold the two side surfaces of a hard disk, do not touch the PCB board or squeeze the hard disk, and do not vibrate, bump, or stack hard disks.
f. Put the hard disks inside ESD bags when they are not used.
2. Replacing the hard disk
If a hard disk is faulty (for example, a hard disk failure log is generated on the USG), you can replace the hard disk unit. The hard disk unit can be replaced no matter when the device is powered on or off. If the device is powered off, skip step 1 and do not run the disk offline command. The following procedure guides you through hard disk unit replacement while the device is powered on:
a. In case of dual hard disks, replace the faulty disk with a new one. Do not change slots of the hard disks. Otherwise, the device may fail to recognize the hard disks.
b. After replacing the hard disk, run the disk online command in the system view. Otherwise, the hard disk does not work. For dual hard disks, data is automatically synchronized between the hard disks after the disk online command is run. The synchronization takes several hours. During the synchronization, do not insert or remove the hard disks. Otherwise, data loss may occur.
c. For dual hard disks, Filesystem Status becomes Mounted several hours after the disk online command is run. During this period, you can use other services, but the hard disks do not record real-time logs for these services. After data synchronization completes, the hard disks automatically start to work. You can run the display disk information command in the user view on the next day to check whether Filesystem Status is Mounted. If no, contact Huawei technical support personnel.
d. After the RAID is created, the data in the active disk will be synchronized to the backup disk and the original data on the backup disk will be overwritten. Select the disk-id of the active disk before creating RAID.
3. Follow-up procedure
Send the faulty hard disk unit to Huawei for repair.

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