Subject: Re: HP 2247 or 2490A drives in VAXen?????
To: Douglas Meade <firstname.lastname@example.org>
From: NetBSD Bob <email@example.com>
Date: 02/11/2000 13:11:10
> This question has come up several times both on this list and on
> comp.os.vms. I think the short answer is that just about any
> disk which is SCSI will work in a VS3100, although if it is
> a newer variety, the controller on that computer won't be taking
> advantage of the disks potential command set or speed.
On a VS3100 speed is .... well, different.....(:+}}...
> The only restriction for using the disk for NetBSD is, if it is
> a boot disk, the boot partition should be within the 1 Gb range.
> Other than that, I've used disks of all sizes as "data" disks
> in a VS3100. Unfortunately, VMS does not support such disk
> partitioning, and so cannot boot from a disk > 1 Gb. (That's
> why you may still hear a lot about ">1 Gb doesn't work in
OK, I usually always boot from the a partition and it won't usually
be larger than 64mb, so that should be no problem.
Any limits on FS sizes in NetBSD VAX? I am expecting to probably load
usr as 1 1 gig fs, then use the rest of the drive for workspace hung
off root in one or two partitions. IFF I want to try rolling snapshots
is there any preferred layout as to partitions so I don't run out of
build space? I am expecting wherever the sources are built, to make
a snapshot would probably need 600-700mb, so that might be tight on a
1 gig usr fs?
> As far as spinning up, etc., if you can find the jumper layout,
> the VS3100 does support spinning the drives up on command, rather
> than on power-up, you can test if this is working by doing a
> "sh dev" at the console prompt, and watching the drive lights go
> on after they are successively queried and spun up.
I have jumper layout labels on the 1 gig drives, but they don't
seem to be on the HP 2490A drives, so I will need to find out
what to set, jumperwise on those. I looked in theref's pages,
but there was nothing there except the size of the drive. Anyone
have a pointer to other old drive info reference sites?
OK, that is what I was thinking of trying first. Are there any
constraints in the formatting from prom via test 75? The target
box is a VS3100/M38 but I don't remember the prom revision offhand.
The question is will the prom formatter correctly run a format on
a large drive? Will LLFMT from prom hurt the HP 2490A drives?
I don't trust a drive without re-LLFMT on it to make sure any
problems are cured. After 5 passes on a LLFMT, usually any drive
will be happy, in my hands --- if it passes that it is usually OK.
> When I was new to DEC's, I lucked out to find a palette of DEC
> Expansion Boxes, with about 20 RZ57's & 58's.
Ohhh, good surplus find......(:+}}...