Hi together,
I am planning a MediaAgent that has enough storage capacity to be my disk storage. Deduplication should be active, it is Back-end Size for Disk Storage Small (Up to 50TB).
Are there any recommendations or requirements regarding the RPM of the backup disks? I did not find anything in the CommVault documentation, only the RPM recommendation for the OS/software disk.
Thanks in advance for your help!
7.2K RPM Disks (12 x 6TB) in a RAID6 with a 4GB Cache on the RAID Controller card / 64GB RAM in the media agent
Thats sufficient for a 40-200TB VM environment
(There’s are dozens of caveats - But the above is a standard build we put out there and works for most scenarios
(We also have a 50TB SSD media agent - where there was the perceived need for blistering fast restores)
For local disk libraries I’ve generally used 7.2K SAS / NLSAS disks in a RAID configuration based upon how much back end storage you need vs spindles to keep the IOPS appropriate. With larger disks these days I tend to use RAID6.
If you’re using locally attached storage then connectivity via SAS and a RAID card is fine if you’re only small, but consider using an array with separate controllers if you’re planning to grow.
Thank you!
Not sure why we didn’t add them, so this one is the best then:
You can always provide a feedback, we will check and modify our documentation if needed.
Hi and thanks for your answer!
Yes I have checked that but there are only the requirements for the OS disk, the DDB disk and the Index Cache disk listed. I am looking for the requirements for the backup disk where the backup data should reside.
Regards,
Pascal
HI
Have you checked this one:
https://documentation.commvault.com/2022e/expert/12410_planning_for_deduplication.html
Best Regards,
Sebastien Merluzzi
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