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Knowledge Base

All Disks in the S5100 Storage Device Encounter a Transient Break for 10 Seconds when a Faulty Disk is being Replaced

Publication Date:  2012-07-20  |   Views:  208  |   Downloads:  0  |   Author:  anliku  |   Document ID:  EKB1000010157


Issue Description

When a faulty disk in the S5100 is removed, the status indicators of all disks are off for 10 seconds.
When a new disk is being inserted in the S5100, the status indicators of all disks are off for 10 seconds

Alarm Information


Handling Process

It is a normal phenomena, which does not affect the upper-layer services. No operation is required.

Root Cause

When a disk is being removed or inserted, the SAS link rediscovers the disk. The rediscovery process takes 10 seconds.
Message mpt-unjam is displayed.


It is a normal phenomena that all disks encounter a transient break for 10 seconds when a disk is being inserted or removed. It is unnecessary for the onsite staffs to worry about it.