Please help me to understand commvault media agent with deduplication
Hi @Mansoor - happy to help, but its a big topic so you may need to be a bit more specific on what you need to know or understand. Is this about deployment, how it works, how to configure etc?
@Damian Andre Yes, i need to configure media agent with DDB in cloud and prepare hardware configuration for MA.
i need to understand media agent Deduplication concept .
@Mansoor , I have a few docs that will help.
this guide covers every concept regarding deduplication and is a great place to start:
This guide will describe how to size your MAs depending on your use case:
Let me know if you have any questions this doesn’t cover.
@Mike Struening Hi Mike, what is the difference between “Back-end Size for Disk Storage” and “Disk layout?”
Also Brief on Parallel Data Stream Transfers
Hardware Specifications for Deduplication Mode (commvault.com)
Hi @Mansoor ,
Back End for Disk Storage tells you what size (Back-end) the Media Agent(s) will be Capable of, depending on the configuration. - Example below:3x Large MA’s with 1DDB = 450TiB Back-end Storage3x Large MA with 2 DDB Disks = 900TiB Back-end Storage
For Disk Layout, This tells you the config required for the MA:
For each Large MA you need 400GB OS Disk, 1.2TB SSD DDB Disk and a 1TB SSD Index Disk:
@MichaelCapon Please confirm whether my understand is correct or not.
Back end storage size = Azure blob storage capacity or HP store once Storage capacity
3x Large MA’s with 1DDB = 450TiB Back-end Storage -- It means this configuration can manage only 450TiB Azure blob storage?
Back-end storage size (disk) would be the Capacity for the Disk Based Library, yes.
Are you deploying on-prem or in cloud (Azure) or both? - For Azure we have a Cloud Architecture Guide here: https://documentation.commvault.com/commvault/v11/others/pdf/public-cloud-architecture-guide-for-microsoft-azure11-19.pdf
Since Cloud Storage uses a Higher Deduplication Block Size (512kb) the calculations here are different, for a Cloud MA:
@MichaelCapon Below are my details:
Backup server : On premise
MA : Azure cloud
Backup types : Oracle DB and Oracle Archive backups:
Backup end Storage : Azure blob storage(hot and cool)
i need to deploy Media agents to manage 500 to 700TB cloud work loads,
what can be best media agent sizing. please provide your input
Initially i am starting with 3 Large Media agents with 8Vcpu and 64 GB RAM, 1 TB SSD Index cache & 1 TB DDB Storage.
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