[Info-vax] Sizing up Disks with Shadowing
Ken Fairfield
ken.fairfield at gmail.com
Tue Aug 11 17:37:06 EDT 2009
On Aug 11, 2:24 pm, Ken Fairfield <ken.fairfi... at gmail.com> wrote:
[...]
> In another follow-up, you write:
>
> > These disks were probably initialize way back on an earlier version of
> > VMS. I wonder if that will make a difference?
>
> I don't know, but I don't think so. I think the
> SET VOLUME/LIMIT does all the reorganization
> that's needed. (Does anyone know if it recreates
> BITMAP.SYS or some such?)
Sorry, on reflection I *think* the expansion limit
*is* dependent on the size of BITMAP.SYS, which
is created when the disk is initialized. I'd be happy
to be corrected, but I suspect that's the hard limit.
In which case, yes, disks initialized a long time
ago would be limited by the smaller size of the
older BITMAP.SYS. If that's the case, I'd go
with a BACKUP/IMAGE/NOINIT from the
current system disk to your big disk, etc.
-Ken
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