[Info-vax] Shadowing & Reboot

[Paul Sture]

On Thu, 17 May 2012 14:08:30 +0000, Christoph Gartmann wrote:

> Hello,
> 
> yet some more questions concerning shadowing of a non-system disk:
> 
> I created a shadow set with two disks, each disk connected to a
> different node. So far so good. Then I rebooted node 1. When node 1 was
> up again, I had to manually add its disk back into the shadow set. So,
> should I put this mount command into SYSTARTUP_VMS.COM? Next, the
> remounted disk went into a full copy state, although there were no
> changes made to the surviving disk on node 2. Is this normal?
> 

This is what I have near the end of SYSTARTUP_VMS.COM on my VAX running 
under SimH:

$ mount /noassist /system dsa101: /shad=($2$dua2:,$2$dua3:) data01
$ mount /noassist /system dsa103: /shad=($2$dud0:,$2$dud1:) freeware

These were originally in SYLOGICALS.COM which worked when hosted on my 
older slower Mac.  Now that it's on a much faster Intel box, the disks 
weren't seen by the system so early on during startup.  My solution of
moving them to SYSTARTUP.COM was essentially "quick and dirty".

For a more robust solution you should follow the advice in 
SYLOGICALS.COM :

$! Include MOUNT/SYSTEM command(s) for the disk(s) on which the above 
$! files reside on.   Please see SYS$EXAMPLES:CLU_MOUNT_DISK.COM for the 
$! recommended method of performing these MOUNT/SYSTEM operations.

(reformatted from the original to avoid wrapping problems)



-- 
Paul Sture