some ZFS questions

Paul Kraus paul at
Mon Aug 25 13:39:15 UTC 2014

A business not technical question below …

On Aug 25, 2014, at 6:07, CyberLeo Kitsana <cyberleo at> wrote:

> I'm currently running a 30TB† 10-disk zpool on a machine with a Haswell
> CPU and, with AES-NI, the encryption operation is faster than the
> throughput of all disks combined; there is no perceptible performance
> impact. When a disk failed recently, it was so much easier to simply
> destroy the key material rather than having to worry about somehow
> securely erasing a device that was not always responsive before shipping
> it back for replacement.
> I have a lot of failed hard drives.

Is it really cheaper to RMA a failed drive that just toss it ?

If you have “a lot” of failed drives, have thou found the root cause yet? Do share.

Paul Kraus
paul at

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