[Info-vax] Disk offline message when trying to mount

[Rich Jordan]

On Feb 9, 12:41 pm, tadamsmar <tadams... at yahoo.com> wrote:
> On Feb 9, 12:35 pm, Rich Jordan <jor... at ccs4vms.com> wrote:
>
>
>
> > On Feb 9, 11:33 am, Rich Jordan <jor... at ccs4vms.com> wrote:
>
> > > On Feb 9, 9:27 am, tadamsmar <tadams... at yahoo.com> wrote:
>
> > > > On Feb 9, 10:25 am, tadamsmar <tadams... at yahoo.com> wrote:
>
> > > > > I have a DS10 running VMS 7.3-2
>
> > > > > I was trying out a used disk I bought.
>
> > > > > It's recognized as DKA100 after boot, but I get a disk offline message
> > > > > when I do MOUNT/FOR DKA100
>
> > > > > Any ideas?  I tried adding a jumper to enable auto spin, did not work
>
> > > > > There are jumper locations for "force se","ti sync nego","disable unit
> > > > > attn", all are open now.
>
> > > > It's an IBM Ultrastar disk  ultra3 scsi drive model DDYS-T09170
>
> > > Which SCSI controller are you using?
>
> > > My info shows that drive as having an SCA connector.  If you are using
> > > an SCA to 68 pin adapter to connect to the cable in your box, are you
> > > certain the adapter is ok?  Does it have jumpers on it, and if so what
> > > do they control besides device ID and apparently spinup?  Is there a
> > > SYNCH/ASYNCH jumper and how is it set?  Is there an LVD/SE jumper?  Is
> > > it rated for the speed of your adapter (the drive is apparently a
> > > U160)?
>
> > > My DS10L has a KZPEA adapter (U160).  I have several IBM drives that
> > > have worked in it using a generic U160 rated SCA to 68 pin adapter;
> > > its currently running an internal IBM Eserver 24P3763 18.2GB 10KRPM
> > > U160 SCA disk very reliably.
>
> > > However I tried both 36GB and 73GB 2.5" Seagate U320 drives that were
> > > discussed here late last year and none of them would come online when
> > > connected via the 68-SCA adapter.  They worked just fine when I
> > > plugged them into my SuperMicro removable disk cage which was plugged
> > > into the second external port of the KZPEA; all recognized, mountable,
> > > usable.
>
> > > My suspicions rest on the 68 pin to SCA adapters, but if you have an
> > > alternate means of plugging that drive into your SCSI bus to test, it
> > > might be worth a try.
>
> > Sorry missed that you listed the jumpers. If you are using a KZPBA
> > controller you might try setting the 'Force SE' jumper.  If a KZPCA or
> > KZPEA then that should not be needed.  I'm not sure about the others.- Hide quoted text -
>
> > - Show quoted text -
>
> How do I check the type of controller?
>
> I don't seem to need a adapter to connect the drive.  The physical
> connect is just like other drives for the DS10

Physical examination; a 'real' one should have the DEC part number/
name on it somewhere.  The KZPEA is an Adaptec 29160, which has two 68-
pin internal connectors and two VHDCI (small) external connectors on
the backplate.  The KZPCA is a single channel controller and has one
internal 68 pin and one external HD68 connector on the backplate.  The
KZPBA is a QLogic board with one internal, one external; some or all
may also have a 50 pin connector but I don't have time to open boxes
to check right now.

Also. If you bring up VMS you can do the following:
$ ANALYZE/SYSTEM
SDA> CLUE CONFIG
hit return to scroll through the devices.

My KZPEA reports as devices PKA and PKB, type Adaptec AIC-7899
The KZPCA on a separate DS10 reports as device PKB, type Symbios 895
The KZPBA on that DS10 reports as device PKA, type QLogic ISP1020
SCSI-2

The KZPBA is a single end controller, not LVD; the KZPCA and KZPEA are
LVD, at 80MBps and 160MBps respectively.

The part number you provided translated as an SCA device, at least in
the two lists I saw.  That would mean one large 80 pin connector on
the back, instead of separate 68 pin data and 4 pin power connectors.
Internal cables are set up for the 68 pin drives, so an adapter is
needed to plug SCA drives in to a 68 pin cable.  This is the adapter I
was referring to, and had trouble with with some particular drives.