MSA 1050 Disk Faild But The light status on the Disk is normal.

[Thanit2555]

Harddisk number 11 was detected as defective, but the status light on the front of the machine was still on, but the light on the 12th piece was not on. Checked the status on the page but did not find Harddisk number 11, but Harddisk number 12 was normal, divided into 3 datagroups, Raid5, all wanted. I would like to ask if in this case the 11th hard disk can be removed to replace it with a new one or not.

Below is the detected log. :

A disk that was part of a disk group is down. A previously detected disk is no longer present. (disk group: MSA-, SN:

(disk:channel:0, ID: 10, SN: **Confidential info erased**, enclosure:1, slot:11)

Additional Information:

The indicated disk in the indicated disk group failed and the disk group probably has a status of FTDN (fault tolerant with a down disk), CRIT

(critical), or OFFL (offline), depending on the RAID level and the number of disks that failed. If a spare is present and the disk group is not offline,

the controller automatically uses the spare to reconstruct the disk group. Subsequent events indicate the changes that happen to the disk group.

When the problem is resolved, event 9 is logged.

Recommended Action:

- Reinsert the disk or insert a replacement disk of the same type (SSD, enterprise SAS, or midline SAS) and the same or greater capacity as the

one that was in the slot. For continued optimum I/O performance, the replacement disk should have performance that is the same as or better

than the one it is replacing.

- If the disk then has a status of leftover (LEFTOVR), go to http://www.hpe.com/support/hpesc and enter your product name or number. When the

page for your product appears, select the "Manuals" tab and then the "Troubleshooting information" link.

[JonPaul]

@Thanit2555 
What you are showing is an EVENT.  This is a moment in time where the disk was removed.  What is the current state of the System, Pool, Disk-Group, Disk?
CLI>  show system
CLI>  show pools
CLI>  show disk-groups
CLI>  show disk

This is one area where the new MSA 2060 ALERT system is better than the EVENTs.  The ALERT will have the information of when the issue occured, when/if it was resolved and current status.
It is possible that the disk totally gave up and is not detected by the system anymore but before you do anything you should know the currentl status of the system and if there is a problem currently.
You can also start a support case and the HPE support team can guide you through validating the status of the system.