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forkicks

Verify on copy (and balancing)

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Hello

 

A way to force drivebender to verify the copied data when it's moved to the destination disks (either through balancing or when directly writing to the pool) would be appreciated.

 

This is independent and unrelated to duplicated files comparison.

 

Thank you.

 

 

 

 

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Won't that slow the I/O down? I think it's already doing it when moving files off a drive that's been set to be removed... and we all know how long that takes (not that I'm complaining).

 

But yeah, an option to turn it on wouldn't hurt.

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Yes, it would slow down the I/O, hence why it should be optional. But there are some scenarios where it is highly desirable, and it would play really well into the landing zone feature coming up on v2. We could have an SSD landing zone and then when moving to final destination have it be verified.

 

I'm a bit bummed by finding some crc errors in the middle of 30TB of data and being surprised by it.

 

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As i said on the initial post, this should be independent of duplicated files.

 

What i am asking for is a head's up warning that something went wrong while moving/copying the files inside the array sooner rather than later when you try to access them and notice some are broken. Of course this doesn't avoid silent corruption, but it will help for other situations.

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