Best Possible Setup For 4X SSD Cache Array


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Hi,

 

Since "upgrading" my single 480GB SSD to 4X 480GB SSD I have been having issues with the intermittant freezing with the activity LED being solid for anything from 10 seconds to a couple of minutes.

 

Can anyone please take a look to see if I have a config issue please? thinking about going back to single drive again as never had a problem but really wanted to have the speed and redundancy of 4 disks. 

 

I also see in my devices I have two controllers, would I benefit from putting two disks on one controller and the other two on the other controller?

 

Thank you

 

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unraidserver-diagnostics-20190308-0924.zip

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First, there are have been read and writes errors on cache2:

Mar  7 00:45:30 UNRAIDSERVER kernel: BTRFS info (device sdo1): bdev /dev/sdp1 errs: wr 59, rd 10, flush 0, corrupt 0, gen 0

See here for what to do and how to keep an eye on the pool.

 

As for the performance, you can try raid10, should give you a little boost, also make sure the SSD trim plugin is running regularly.

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12 minutes ago, mbc0 said:

I have the SSD Trim set to Daily already, is that too much? 

No, that's OK.

 

12 minutes ago, mbc0 said:

Also what are your thoughts on have two drives on one controller and two on the other? any gains?

Should make no difference.

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