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- From: fairfield@slacvx.slac.stanford.edu
- Subject: Re: Mount verification timed out
- Message-ID: <1992Dec29.105010.1@slacvx.slac.stanford.edu>
- Lines: 41
- Sender: news@unixhub.SLAC.Stanford.EDU
- Organization: Stanford Linear Accelerator Center
- References: <1992Dec29.152302.1716@das.harvard.edu>
- Date: Tue, 29 Dec 1992 18:50:10 GMT
-
- In article <1992Dec29.152302.1716@das.harvard.edu>, chen@speed.uucp (Lilei Chen) writes:
- > In our VAX/VMS-cluster a bunch of disks are cross mounted. Somtimes when
- > a node goes down, its disks are marked mount verification timed out. I
- > haven't found a way to get those disks remounted without rebooting the
- > nodes. I am wondering if someone on the net has a solution for that problem.
-
- For each node in the cluster for which the disk(s) have gone into
- mount verification time-out, do:
-
- $ DISMOUNT/ABORT device
-
- You can do this most easily from SYSMAN after doing
-
- SYSMAN> SET ENVIRONMENT/NODE=(NODE1,NODE2,...,NODEN)
-
- where the node list, above, includes all/only those nodes needing to
- remount the disk(s). Follow the DISMOUNT with a MOUNT (with appropriate
- parameters). Note that it _is_ allowed to do a second MOUNT/CLUSTER of
- the device in question from it's local host (and perhaps from any node in
- the cluster, I haven't tried): all nodes for which the device is already
- mounted ignore the request, while nodes that don't have the device mounted
- will mount it.
-
- As another followup pointed out, if there are any open channels to the
- disk(s) that "went away", they must be closed before the disk(s) can be
- dismounted. That's why you need to use /ABORT. I am not sure of the
- current situation (VMS V5.5-1), but in earlier versions of VMS, if you
- issued a DISMOUNT to the device _without_ the /ABORT qualifier, the disk
- would NOT dismount successfully, even if you subsequently issued a
- DISM/ABORT (again, this is most likely dependent on having "open" files on
- the device in question from the node you're trying to do the dismount). I
- recall getting devices into a state of "Mount/Dismount"! The only way of
- recovering those devices for _that_ node was to reboot. :-(
-
- -Ken
- --
- Dr. Kenneth H. Fairfield | Internet: Fairfield@Slac.Stanford.Edu
- SLAC, P.O.Box 4349, MS 98 | DECnet: 45537::FAIRFIELD (45537=SLACVX)
- Stanford, CA 94309 | BITNET Fairfield@Slacvx
- ----------------------------------------------------------------------------
- These opinions are mine, not SLAC's, Stanford's, nor the DOE's...
-