Disclaimer: I tried my best to search for an answer to this, but couldn't find anything even though i'm sure the discussion has come up already.
So i have just created a PBS server with:
However, one thing i noticed is that when i try to configure the record size of the pool, it seems to be limited to a max record size of 1MB? I'm quite sure i read that this limit was increased in the past, as i've seen people discuss using up to ~16MB record sizes elsewhere. Am i missing something?
I expected that setting it to 4MB might be ideal, since as far as i'm aware, PBS stores data in (up to?) 4MB chunks? I'd just like to avoid read/write amplification as best i can, and also still benefit from a high compression ratio.
Any advice to help me tune these settings would be appreciated!
So i have just created a PBS server with:
- 6x 20TB HDDs (mirrored) as the 'backups' pool
- 6x 4TB SSDs (mirrored) as the special devices for said pool
However, one thing i noticed is that when i try to configure the record size of the pool, it seems to be limited to a max record size of 1MB? I'm quite sure i read that this limit was increased in the past, as i've seen people discuss using up to ~16MB record sizes elsewhere. Am i missing something?
I expected that setting it to 4MB might be ideal, since as far as i'm aware, PBS stores data in (up to?) 4MB chunks? I'd just like to avoid read/write amplification as best i can, and also still benefit from a high compression ratio.
Any advice to help me tune these settings would be appreciated!
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