[Info-vax] Need help mounting shadow set

[VAXman- at SendSpamHere.ORG]

In article <75a84a31-f568-4838-98d8-336897bacbcf at m20g2000vbp.googlegroups.com>, Tom Adams <tadamsmar at yahoo.com> writes:
>On Oct 5, 3:16=A0pm, "Richard B. Gilbert" <rgilber... at comcast.net>
>wrote:
>> Tom Adams wrote:
>> > On Oct 5, 2:04 pm, Joseph Huber <joseph.hu... at NIRWANA.web.de> wrote:
>> >> tadamsmar schrieb:
>>
>> >>> I had to replace one of my disks that was logging errors. =A0I bought
>> >>> exactly the same make and model disk. =A0But it will not mount. =A0I =
>am
>> >>> getting an error saying the disk is too small.
>> >>> The new disk shows:
>> >>> Disk $1$DKA100: (EESN), device type COMPAQ ST32171W, is online, file-
>> >> [snip] ...
>> >>> =A0 =A0 Total blocks =A0 =A0 =A0 =A0 =A0 =A0 4110000 =A0 =A0
>> >>> The current system disk that I want to shadow shows:
>> >>> Disk DSA0:, device type DEC RZ1BB-CS, is online, mounted, file-
>> >> [snip]...
>>
>> >>> =A0 =A0 Total blocks =A0 =A0 =A0 =A0 =A0 =A0 4110480 =A0 =A0
>> >> The disk might be the same physically, but apparently has different
>> >> firmware leading to different "device type", and slightly less blocks:
>> >> these tiny 480 blocks missing.
>>
>> >> --
>>
>> >> =A0 Joseph Huber =A0 -http://www.huber-joseph.de
>>
>> > I guess I can do a copy to the new disk and then boot with it as the
>> > shadow master, =A0then I can add the old disk to the shadow set.
>>
>> > Is there a way to do a direct copy. Or do I have to do a backup image
>> > and then copy to the other disk?
>>
>> $ BACKUP /IMAGE DISK1 DISK2- Hide quoted text -
>>
>> - Show quoted text -
>
>I needed:
>
>BACKUP/IGNORE=3DNOBACKUP ...
>
>To get everything.
>
>I wonder if I should include /ignor=3Dlabel ?

Why /IGNORE=NOBACKUP?  NOBACKUP is typically set on things like the PAGE 
and SWAP files.  The contents of which are meaningless if you shutdown
and boot from, say, the CD.  All you need is the file header which will
defines these files (blocks incorporated within and the address (LBNs) of
said blocks); the content is irrelevant.  In fact, the backup will go by
faster if you don't waste the time to copy this content.

Just issue:

$ MOUNT/OVERRIDE=IDENTIFICATION DISK1:  
$ MOUNT/FOREIGN DISK2:
$ BACKUP/IMAGE DISK1: DISK2:

This will init the drive to a size appropriate to hold the files from the
old volume and maintain the label currently in use (which you many wish to
keep or you'll need to amend your startup mount commands.

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