Method used to locate the disk slot before replacing a disk

1

You can locate the disk slot before replacing a disk as follows:
1. Fault location and rectification
a. The method is used before replacing a faulty disk.
b. The method is used before replacing a risky disk.
c. You may stay on the OSM for some time until timeout and logging out of the OSM. The disk slot locating expires and the disk slot requires a relocating.
2. Solution
a. Log in to the OSM of the storage system.
b. Select Devices and then the enclosure where a disk be replaced resides. Click the disk that you want to replace. In the dialog box that is displayed, click Locating hard disks.
c. A dialog box is displayed indicating that the operation is successful. Do not close the dialog box. Otherwise, the disk location indicator is turned off.
d. The slot whose indicator (alarm indicator) blinks red is where the disk to be replaced locates. Replace the disk.
The location indicator of a disk blinks red while the alarm indicator of a disk is in steady red mode.
You must differentiate the enclosure indicator and disk fault indicator. Engineers may regard the enclosure alarm indicator as the disk alarm indicator and remove the disk in slot (0,8).
After the faulty disk is replaced, return to the OSM and close the location function (close the dialog box that is displayed in step c).

Other related questions:
Method used to isolate disks
Method used to isolate disks: 1. Locating procedure: The method is used to isolate disks impacting system services or proper running of the system. a. In most bilateral isolation cases, it is recommended that the pre-failure configuration be used. b. In the case of error code isolation and intermittent disconnection isolation, unilateral isolation and access, instead of slow disk isolation, are used. 2. Solution a. Bilateral isolation and access (simulating disk rejection and acceptance) Note: Disk rejection is mostly used for RAID recovery. In other cases, it is recommended that the pre-failure configuration be used for disk rejection. Isolation: Log in to the storage's MML mode and enter dev setdiskout enclosure ID slot ID to specify the enclosure number and slot number. Access: Log in to the storage's MML mode and enter dev setdiskin enclosure ID slot ID to specify the enclosure number and slot number. b. Unilateral isolation and access Note: It is mostly used for the error code isolation and intermittent disconnection isolation modes. Error code isolation and intermittent disconnection isolation mostly occur on unilateral isolation (that is, the disk has one link). In this case, you need to connect the disk to the system by using a link and continue to use the disk. If the disk has single link again later, replace the disk. Log in to the isolated controller. Unilateral isolation: Log in to the storage's MML mode and enter dev setdiskout enclosure ID slot ID 1. Unilateral access: Log in to the storage's MML mode and enter dev setdiskin enclosure ID slot ID 1. After unilateral isolation is performed, on the OSM page, the disk indicator becomes yellow. After unilateral access is performed, the disk indicator turns normal.

Replacing hard disks for the USG6000 series
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: Note: 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. 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. 1. Ensure that all configurations are saved. 2. Run the disk offline command in the system view. Wait for about 30 seconds until the system indicates that the hard disk stops working and then remove the hard disk unit to be replaced. a. Press the button on the right of the hard disk tray to eject the handler. b. Use the handler to pull the hard disk unit out of the slot. c. Put the replaced hard disk unit into an ESD bag. 3. Install the new hard disk unit. The hard disk unit installation methods are the same for 1 U and 3 U devices. For details, see content relevant to installing hard disks for the USG6000 series in the product documentation. 4. Run the disk online command and then the display disk information command in the system view. If Filesystem Status is Mounted, the hard disk works properly. Note: 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.

Method used to replace coffer disks of OceanStor T Series unified storage
Method used to replace coffer disks of OceanStor T Series unified storage: Idle disks can be replaced one by one at intervals of 10 minutes. For more details, see Replacing a Disk .

Replacement of a malfunctioning coffer disk with a hot spare disk
A hot spare disk can replace a malfunctioning coffer disk if the two disks are of the same type and the hot spare disk provides a capacity equal to or larger than that of the coffer disk.

Can the Disk Be Properly Used If the Device Names Displayed Before and After Disk Attaching Are Different?

The device name you selected during disk attaching to a BMS and that displayed on the BMS details page after the disk is attached to the BMS are different. However, this issue does not adversely affect disk usage, and you can properly use the attached disk.


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