“SSD Does Not Support Discard” Alert When Creating VS

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Issue Description

The customer wishes to create a VS, but they are worrying why there is an alert showing “SSD does not support Discard”.

Handling Process

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Root Cause

The meaning of the error is the SSD or RAID does not support discard features. Discard mode also known as SSD TRIM.
“SSD TRIM is an Advanced Technology Attachment (ATA) command that enables an operating system to inform a NAND flash solid-state drive (SSD) which data blocks it can erase because they are no longer in use. The use of TRIM can improve the performance of writing data to SSDs and contribute to longer SSD life.” – references from wikipedia.
Remarks: There is no problem use the SSD without discard features, but as time goes on, the read and write performance will decrease.

Solution

Recommend change SSD to an enterprise version which supports discard features.
Faisal Lv8Posted 26 Aug 2020 08:23
  
Thank you very much for the information ...
Faisal Lv8Posted 15 Oct 2020 13:05
  
Nice article ...
Faisal Lv8Posted 24 Dec 2020 07:33
  
Great Info ...
Ellechar Lv4Posted 18 Jan 2021 09:25
  
Very nice infoooooooooooooooooooooooo
Faisal Lv8Posted 25 Mar 2021 07:16
  
Very informative …
Faisal Lv8Posted 10 Jun 2021 08:54
  
Nice guidance ...
Edward Ma Lv1Posted 17 Apr 2023 16:01
  
Easy to Read and Understand

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Doc ID: 2284
Author: GodLike
Updated: 2019-12-19 15:39
Version: