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Conference ssag::ask_ssag

Title:	Ask the Storage Architecture Group
Notice:	Check out our web page at http://www-starch.shr.dec.com
Moderator:	SSAG::TERZAN

Created:	Wed Oct 15 1986
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	6756
Total number of notes:	25276

6676.0. "HSZ50 mount verification aborted" by ITBG02::BONORA () Fri May 09 1997 11:33

Hi', we a serious problem on an 
ALPHASERVER 2100 5/250 OpenVMS 6.2
The Raidset disks connected to an
HSZ50 in dual redundant configuration
went in "MOUNT VERIFCATION PROGRESS"
during the night.
After 1 hour the disk went in 
"MOUNT VERIFICATION ABORTED".
The only way to re-mount the HSZ50 raid
disk is to reboot the two HSZ50. 
Only this disk are inoperative, all the other devices are ok 

During the night the Customer mades backup to a TZ88 table-top, and other
cleanig-up procedure on the RAID disk were the application
database resides. If this procedure doesn't run in the right
way, all the activity is damaged.
The backup procedure start around the 10:20 pm. and
the "mount verification in progress" appened around the 10:45 pm.
and it is logged in the operator.log
After 1 hour the message "mount verification aborted for dkb.." 
is logged on the operator.log too.

The A2100 is connected to an SW300 whit two HSZ50 in dual redundant
configuration, via a KZPSA FW/DIFF at FW rev. A10.
The EMU unit is installed too.
The total RAM of the A2100 is 640 MB.
The TZ88 is connected to the A2100 not on the HSZ50.

The OpenVMS 6.2 AXP is installed and the patch ALPSCSI02_070 too. 
Decevent didn't log any error message, only the time-stamps and 
the dismount message of the tape.

The HSZ console hard copy dosen't log any message during the 
OpenVMS mount verification
message and the raid disks remain on-line to the HSZ50.

The two HSZ50 are running HSOF 5.0Z-2 sotfware

Ten days ago we changed the KZPSA on the A2100 and moved the TZ88 table-top
from the SCSI on-board to a KZPAA SCSI controller, no other device is installed
on this new scsi bus.

After this time the problem appened again.

How it is possible that a "mount verification" isn't logged by ERRFMT in the 
errlog.sys ?
May be it is caused by a non-hardware error ?

Does anyone can geve me some advice to look into this problem ?

Any suggestion is welcome !!


Thanks

Leonardo MCS Field Service Engineer.

T.R Title User Personal
Name Date Lines

6676.1 Port status? VMSSPT::DIFABIO MOVL #OPINION,EXE$GL_BLAKHOLE Mon May 12 1997 12:46 12

T.R	Title	User	Personal Name	Date	Lines
6676.1	Port status?	VMSSPT::DIFABIO	MOVL #OPINION,EXE$GL_BLAKHOLE	`Mon May 12 1997 12:46`	12
	You might want to IPMT this so we can get some logging drivers involved, but you state that you have to reboot the HSZ50 to remount the raidsets after MVTO. Is this true? Or did you mean you need to reboot the nodes? Also, you state there is nothing in the errorlog. You mean nothing for either the DK or PK devices, right? If the KZPSA port is not online (being reinitialized) then you will get SS$_MEDOFL returned from the port driver (PKS) to the class driver (DK). In this scenerio, it is likely that you will not see errors logged. Mark d.

    You might want to IPMT this so we can get some logging drivers
    involved, but you state that you have to reboot the HSZ50 to remount
    the raidsets after MVTO. Is this true? Or did you mean you need to
    reboot the nodes? Also, you state there is nothing in the errorlog. 
    You mean nothing for either the DK or PK devices, right?
    
      If the KZPSA port is not online (being reinitialized) then you will 
    get SS$_MEDOFL returned from the port driver (PKS) to the class driver
    (DK). In this scenerio, it is likely that you will not see errors
    logged. 
    
                 Mark d.