[OmniOS-discuss] r151014 users - beware of illumos 6214 and L2ARC

[Richard Elling]

> On Sep 11, 2015, at 11:37 AM, Dan McDonald <danmcd at omniti.com> wrote:
> 
> 
>> On Sep 11, 2015, at 2:33 PM, Michael Rasmussen <mir at miras.org> wrote:
>> 
>> What should one look for from the zdb output to identify any errors?
> 
> Look for assertion failures, or other non-0 exits.
> 
> Basically, zdb has the kernel zfs implementation in userspace.  If a kernel would panic, it will also "panic" zdb, leaving a 'core' around.

Also recall that zdb reads from disks. Therefore if a pool is imported, it can get
out of sync with current reality. That said, it should be reasonably ok for older
data that is not being overwritten (deleted in the current pool with no snapshot)
 -- richard