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Failed to Detect All Disks

Publication Date:  2015-07-30 Views:  84 Downloads:  0
Issue Description
1.  In the operating system, the scanning tool fails to detect all disks.

In Linux, run the fdisk -l command to display the number of disks. The displayed number of disks is smaller than the number of the inserted disks.

2.  The disk alarm/location indicator is red on.

Figure 1 shows the disk alarm/location indicator on a HDP3500E.

Figure 1 Disk alarm/location indicator


Handling Process
Symptom 1: In the operating system, the scanning tool fails to detect all disks.

Log in to the ISM to check whether the hard disk is absent. For details, see Checking the Disk Status in the OceanStor HDP3500E G3 V100R003 Routine Maintenance.
  • If the hard disk is detected, contact the technical support engineers of your vendor.
  • If the hard disk cannot be detected, go to cause 1.
Cause 1: The hard disk is not properly installed.

1.  Remove and reinsert the hard disk.

For details, see Replacing a Hard Disk.

2.  Run the disk scanning tool and check whether all disks can be detected.
  • If all disks are detected, the fault is rectified.
  • If the fault persists, go to cause 2.
Cause 2: The hard disk is faulty.

1.  Replace the hard disk that cannot be detected.

For details, see Replacing a Hard Disk.

2.  Run the scanning tool again to check whether all disks can be detected.
  • If all disks are detected, the fault is rectified.
  • If the fault persists, contact the technical support engineers of your vendor.
Symptom 2: The disk alarm/location indicator is steady red.

Cause 1: The hard disk is not properly installed.

1.  Remove and reinsert the hard disks on which the alarm/location indicators are off or steady red.

For details, see Replacing a Hard Disk.

2.  Wait for three minutes after the hard disks are reinserted. Then check the disk alarm/location indicators.
  • If the disk alarm/location indicator is steady green, the fault is rectified.
  • If the disk alarm/location indicator is off or steady red, go to cause 2.
Cause 2: The hard disk is faulty.

1.  Replace the hard disks on which the alarm/location indicators are off or steady red.

For details, see Replacing a Hard Disk.

2.  Wait for three minutes after the new hard disks are installed. Then check the disk alarm/location indicators.
  • If the disk alarm/location indicator is steady green, the fault is rectified.
  • If the disk alarm/location indicator is off or steady red, contact the technical support engineers of your vendor.

NOTE:
Replacing a Hard Disk,Please download view.

Root Cause
Possible Causes:

Symptom 1: In the operating system, the scanning tool fails to detect all disks.

Cause 1: The hard disk is not properly installed.

Cause 2: The hard disk is faulty.

Symptom 2: The disk alarm/location indicator is red on.

Cause 1: The hard disk is not properly installed.

Cause 2: The hard disk is faulty.

Fault Diagnosis:

Figure 2 Troubleshooting flowchart for not all disks detected





Figure 3 Troubleshooting flowchart for a disk alarm/location indicator red on


Suggestions
After a hard disk is inserted, wait for three minutes. Then determine the hard disk status based on the disk alarm/location indicator status.

END