[EMAIL PROTECTED] said:
> For direct-attached storage, you should quiesce the device by ensuring that
> any filesystems accessing it are unmounted, and then I believe you can just
> yank it.  

I was thinking about our current practices for SVM- or ZFS-mirrored
filesystems on direct-attached drives (incl. jbod).  For SVM, the
recommended practice has been to use cfgadm to unconfigure a drive
before pulling it.  My experience with ZFS (as of S10U4) is that one
wants to "cfgadm unconfigure" as soon as the drive starts to experience
trouble, otherwise ZFS will keep trying and your system may well hang.
In fact, many ZFS users have found that ZFS hangs your system if you
pull the drive before "cfgadm unconfigure".

The point I want to make is that "cfgadm unconfigure" works now on mpt, and
MPxIO on mpt causing these devices to disappear from the cfgadm interface
is going to take away this capability.  Hence the unhappy campers.

Regards,

Marion


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