constant zfs data corruption

[Xin LI]

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Jeremy Chadwick wrote:
[snip]
> Ahh, I see.  So to paraphrase, ZFS can detect checksum errors (data
> corruption) using any pool type (single disk, mirror, raidz, whatever),
> but can only *repair* the error when using a mirror or raidz.

Also when copies >= 2.

This is very useful for e.g. laptops.  I have set copies=2 for all zfs
file systems (not on the whole pool) storing important personal data
(/home, /usr/src), and after 3 times (!) of hard drive bad sector
incidents (all replaced after recoverdisk) within 6 months, I was very
lucky not to use the last resort by restoring data from my monthly DVD-R
backup.

Cheers,
- --
Xin LI <delphij at delphij.net>	http://www.delphij.net/
FreeBSD - The Power to Serve!
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