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тАО02-22-2006 06:49 AM
тАО02-22-2006 06:49 AM
restoring a system disk using a fibre attached tape library
I do not have a local attached tape drive. My tape library is fibre attached and so I am at lost as to how to have the system see the tape drive and restore my system disk. I think I will need to use wwidmgr to see a tape library. The library is attached to a production cluster.
For most OpenVMS bigot this is a no brainier but us amateurs bigots just starting out this is mind-boggling. I appreciate any advice. :)
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тАО02-22-2006 07:41 AM
тАО02-22-2006 07:41 AM
Re: restoring a system disk using a fibre attached tape library
If I remember correctly, the sequence is:
- boot from a recent CD-ROM [*]
- SYSMAN> IO FIND_WWID
- SYSMAN> IO AUTOCONFIGURE
- $ show device $2$mg
[*] the FIND_WWID mechanism has existed for some time, but early implementations wrote a file and then required a reboot :-(
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тАО02-22-2006 07:47 AM
тАО02-22-2006 07:47 AM
Re: restoring a system disk using a fibre attached tape library
Phil
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тАО02-22-2006 08:13 PM
тАО02-22-2006 08:13 PM
Re: restoring a system disk using a fibre attached tape library
Rob.
To boot the system from CD, place an ├в OpenVMS Operating System Disk├в CD into the CD-ROM drive. The VMS version must be at least 7.2-2, so that there in support for the HSG80 controllers.
At the chevron prompt (├в >>>├в ) type ├в >>> show device├в .
Look for the CD-ROM drive in the list indicated by the letters ├в CD├в in the device type column. This is usually a ├в dq├в device, as below :-
P00>>>show device
dga150.1001.0.7.0 $1$DGA150 HSG80 V87S
dga150.1002.0.7.0 $1$DGA150 HSG80 V87S
dqa0.0.0.105.0 DQA0 CD-224E A.8D
dva0.0.0.0.0 DVA0
eia0.0.0.2004.1 EIA0 00-08-02-1A-66-6C
eib0.0.0.2005.1 EIB0 00-08-02-1A-66-6D
pga0.0.0.7.0 PGA0 WWN 2000-0000-c92f-7594
pka0.7.0.7.1 PKA0 SCSI Bus ID 7
pkb0.7.0.6.0 PKB0 SCSI Bus ID 7
pkc0.7.0.106.0 PKC0 SCSI Bus ID 7
Once you have located the CD drive, boot it using this command :-
P00>>>boot ├в flags 0,0 device
├в ┬ж.replacing device with the device name you located, i.e. dqa0.
The ├в -flags 0,0├в tells the system to boot from SYS0 using a non-conversational boot. To perform a conversational boot you would use ├в -flags 0,1├в .
You should see a message similar to ├в block 0 of dqa0.0.0.105.0 is a valid boot block├в . The system will then continue to boot.
Once the system has booted from CD, which normally takes about 5 minutes, you are presented with a menu system, like this :-
Select option 7 ├в Execute DCL commands, and wait for the dollar (├в $├в ) prompt to appear.
Once the prompt has appeared, you can execute normal DCL commands.
If you are restoring from Fibre attached devices, you may need to issue the following commands first :-
$ MC SYSMAN
IO FIND_WWID
IO AUTO
EXIT
Before attempting to restore any of the disks, ensure that all of the physical disks still exist by issuing a ├в $ SHOW DEVICE DGA├в command.
The system disk will be restored from tape. It will be the first save-set on tape sets 1 and 2, called DR$1$DGA1.BAK.
We will assume that the system disk device is $1$DGA1: and that the tape device is $1$MKB400. If this is not the case, then you must substitute the correct device names for the hardware delivered and configured. The DR suppliers technician will be able to assist in this.
To ensure that the tape is not accidentally overwritten, ensure the write-protect tab is in place and a red box is showing on the front of tape.
11.1. Restore Commands
To restore the system disk from tape, issue these commands :-
$ MOUNT /FOREIGN $1$DGA1:
$ MOUNT /FOREIGN $1$MKB400:
$ BACKUP /IMAGE $1$MKB400:DR$1$DGA1.BAK /SAVE ├в
$1$DGA1: /BLOCK=65535 /IGNORE=LABEL
NOTE: Remember to substitute the device names for those configured.
You should not see any other messages for some time (about 15 minutes), until the data has been copied to disk.
To ensure the restore is working, pressing CTRL-T should show the IO increasing, once the correct save-set has been found.
Once the system disk has been restored, the process will return back to the dollar prompt. If any other messages are received, you should act on these as appropriate.
Dismount the newly created system disk by issuing the command :-
$ DISMOUNT $1$DGA1:
also dismount the tape :-
$ DISMOUNT $1$MKB400: /NOUNLOAD
Then remount the drive and check that the directory structure looks ok by typing :-
$ MOUNT /OVERRIDE=IDENT $1$DGA1:
$ DIRECTORY $1$DGA1:[000000]
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тАО02-22-2006 11:21 PM
тАО02-22-2006 11:21 PM
Re: restoring a system disk using a fibre attached tape library
if you are trying to post snippets of MS Weird (sometimes incorrectly spelled as Word) or PDF to this forum, then first export it as ASCII text.
No totally bullet-proof, but MUCH more text will be tranferred in a readable font.
hth
Proost.
Have one on me.
jpe
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тАО02-23-2006 01:11 AM
тАО02-23-2006 01:11 AM
Re: restoring a system disk using a fibre attached tape library
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тАО02-24-2006 02:42 AM
тАО02-24-2006 02:42 AM
Re: restoring a system disk using a fibre attached tape library
the FIND_WWID mechanism has existed for some time, but early implementations wrote a file and then required a reboot
A reboot is not necessary anymore, but at least SYSMAN> HELP IO FIND_WWID (in V8.2) still talks about entering the tape info into SYS$SYSTEM:SYS$DEVICES.DAT
Did someone really sucessfully access a FC tape when booted from the OpenVMS Alpha CDROM ?
Volker.
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тАО03-07-2006 07:39 AM
тАО03-07-2006 07:39 AM