[Info-vax] Need help mounting shadow set

Tom Adams tadamsmar at yahoo.com
Tue Oct 6 08:26:57 EDT 2009


On Oct 5, 4:14 pm, VAXman-  @SendSpamHere.ORG wrote:
> In article <75a84a31-f568-4838-98d8-336897bac... at m20g2000vbp.googlegroups.com>, Tom Adams <tadams... 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.
>
> --
> VAXman- A Bored Certified VMS Kernel Mode Hacker    VAXman(at)TMESIS(dot)ORG
>
>  http://www.quirkfactory.com/popart/asskey/eqn2.png
>
>   "Well my son, life is like a beanstalk, isn't it?"- Hide quoted text -
>
> - Show quoted text -

I also used /ignore=(nobackup,label).   I use these when I do an image
to tape.



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