What is a Media Scan?

Asset ID:	1-79-1017097.1
Update Date:	2017-07-17
Keywords:

Solution Type Predictive Self-Healing Sure

Solution 1017097.1 : What is a Media Scan?

Related Items


Sun Storage 6580 Array
 Sun Storage 2540-M2 Array
 Sun Storage 2510 Array
 Sun Storage 6540 Array
 Sun Storage 2540 Array
 Sun Storage 6180 Array
 Sun Storage 6130 Array
 Sun Storage 6780 Array
 Sun Storage 2530 Array
 Sun Storage 2530-M2 Array
 Sun Storage 6140 Array

Related Categories


PLA-Support>Sun Systems>DISK>Arrays>SN-DK: FLX300_65xx_6780

PreviouslyPublishedAs
227826

Applies to:

Sun Storage 2510 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 2530 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 2530-M2 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 6540 Array - Version Not Applicable to Not Applicable [Release N/A]
Sun Storage 6580 Array - Version Not Applicable to Not Applicable [Release N/A]
All Platforms

Purpose

This document describes the purpose and action of a media scan.

Details

A media scan is a background process that runs on all volumes in the Storage Array for which it has been enabled and provides error detection on the drive media. The advantage of enabling the media scan process is that the process can find media errors before they disrupt normal drive reads and writes. The media scan process scans all volume data to verify that it can be accessed and if you enable redundancy check it scans the volume redundancy data at the same time.

Volumes with redundancy protection: Data is reconstructed, re-written to the drive, and verified. The error is reported to the Event Log.

Volumes without redundancy protection: The error is not corrected but is reported to the Event Log. Volumes without redundancy protection include RAID 0 volumes and degraded RAID Level 1, RAID Level 3, RAID Level 5, and RAID Level 6 volumes.

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