L2ARC degraded. Checksum errors, I/O errors

[Karli Sjöberg]

Den 20 maj 2015 7:50 em skrev Slawa Olhovchenkov <slw at zxy.spb.ru>:
>
> On Wed, May 20, 2015 at 07:17:44PM +0300, George Kontostanos wrote:
>
> > Hello,
> >
> > Appologies if that has been asked before. I was wondering if the following
> > bug has been addressed so far:
> > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=198242
>
> As I know
>
> kstat.zfs.misc.arcstats.l2_cksum_bad: 14495
> kstat.zfs.misc.arcstats.l2_io_error: 12877
>
> caused by hardware failure on L2ARC device.
> try replace it.

Hardly. We are seeing this phenomenon on all of your ZFS storage's, where some of the L2ARC's are new, so I'd be very surprised if these are real hardware failures. That, as well as being reported by so many, my vote is on bug.

@gkontos
Thanks for bringing this to attention, I'm also interested in hearing if anyone's working on this.

/K

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