SCSI reservation

[Javier Martin-Lorente]

Hi,

I have a problem with SCSI reservation in a IBM ESS (shark). Is there any command in HP-UX to delete the SCSI reservations in a SAN storage?

thanks

[Mikko Niskanen_1 · Accepted solution]

Aye, should go like this (from man scsictl):

"To clear persistent reservation from a device:

scsictl -p pr_clear key /dev/rdsk/c0t6d0"

scsimgr should also do the trick, first query what attributes are disabled:

scsimgr get_attr -D /dev/rdisk/disk1 -a disable_flags

SCSI ATTRIBUTES FOR LUN : /dev/rdisk/disk1

name = disable_flags
current = WCE
default = WCE
saved =

Then add 'PR' to these:

scsimgr set_attr -D /dev/rdisk/disk1 -a disable_flags='WCE PR'

WCE=write cache enable, PR=permanent reservation

Hope these help.