HP3000-L Archives

February 2005, Week 4

HP3000-L@RAVEN.UTC.EDU

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From:
Denys Beauchemin <[log in to unmask]>
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Date:
Tue, 22 Feb 2005 16:05:49 -0600
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I think I'm going to disagree with that.  It is my understanding that the HP
3000 really knows nothing of the physical characteristics of SCSI disk
drives.  If you look at the SYSGEN, you will notice all SCSI disk drives
have the same driver and all disk arrays have the same drivers.  Nowhere in
SYSGEN is the drive described.  Indeed, you can tell SYSGEN you have one
model of SCSI drive and use another model, with different capacity.

I am not even sure the SCSI standard provides for information retrieval of
the drive geometry, but it's been a while since I have looked in there.

I think that as long as the target drive (partition) has the same or greater
capacity as the source, it should make no difference.

I think we are well beyond the SCSI driver needing to know the geometry of
the drives, it's all LBA now and has been for a long time.

Denys

-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf
Of John Clogg
Sent: Tuesday, February 22, 2005 3:53 PM
To: [log in to unmask]
Subject: Re: [HP3000-L] Moving from XP512 to VA71xx

Tim Asks:
>Can I VSCLOSE my XP01_SET-0 volume set and use COPYVOL or COPYSET to
move
>to my new VA7110 ? Or are these VOLUTIL commands intended for obsolete
>products (7925's,7933's).

I believe the answer is no, you can't do it.  The reason is that the
COPYVOL and COPYSET commands require that the source and target volumes
have the same physical characteristics.  Chances are the logical volumes
on the two machines have some different characteristics - different
number of tracks, bytes per track, etc.  If you had two VA7110's
configured exactly alike, it might work, but I doubt that the situation
you describe would work.

John

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