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How do I make "Defined" disks "Available" disks in AIX 5.3 ?

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David Kirkby

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Sep 16, 2010, 11:48:57 AM9/16/10
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I've been swapping disk around in my RS/6000 and now have:

# lsdev -c disk
hdisk0 Available 30-58-00-3,0 16 Bit SCSI Disk Drive
hdisk1 Available 30-58-00-8,0 16 Bit SCSI Disk Drive
hdisk2 Available 30-58-00-9,0 Other SCSI Disk Drive
hdisk3 Available 30-58-00-10,0 16 Bit SCSI Disk Drive
hdisk4 Defined 30-58-00-13,0 Other SCSI Disk Drive
hdisk5 Defined 30-58-00-13,0 16 Bit SCSI Disk Drive

How do I turn those "Defined" disks into "Available" disks, so that I
can do something with?

I've found it a bit of a pain trying to install disks via smit, in
particular since it wants the "CONNECTION address" of which there are
more than 1000 to chose from. How on earth is one supposed to know
what that is?

Dave

Tony

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Sep 16, 2010, 1:01:58 PM9/16/10
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Defined means AIX once knew about them, but at last boot couldn't find
them. If you're sure they still exist, and are still powered on, then
cfgmgr should move them to available.

You shouldn't have to install disks via smit. Plug the disk in, run
cfgmgr.
--
Tony Evans
Saving trees and wasting electrons since 1993
blog -> http://perceptionistruth.com/
books -> http://www.bookthing.co.uk/
[ anything below this line wasn't written by me ]

David Kirkby

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Sep 16, 2010, 1:29:37 PM9/16/10
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On Sep 16, 6:01 pm, Tony <t...@darkstorm.invalid> wrote:

> In comp.unix.aix, David Kirkby <david.kir...@onetel.net> wrote:
>
>
>
> >I've been swapping disk around in my RS/6000 and now have:
>
> ># lsdev -c disk
> >hdisk0 Available 30-58-00-3,0  16 Bit SCSI Disk Drive
> >hdisk1 Available 30-58-00-8,0  16 Bit SCSI Disk Drive
> >hdisk2 Available 30-58-00-9,0  Other SCSI Disk Drive
> >hdisk3 Available 30-58-00-10,0 16 Bit SCSI Disk Drive
> >hdisk4 Defined   30-58-00-13,0 Other SCSI Disk Drive
> >hdisk5 Defined   30-58-00-13,0 16 Bit SCSI Disk Drive
>
> >How do I turn those "Defined" disks into "Available" disks, so that I
> >can do something with?
>
> >I've found it a bit of a pain trying to install disks via smit, in
> >particular since it wants the "CONNECTION address" of which there are
> >more than 1000 to chose from. How on earth is one supposed to know
> >what that is?
>
> Defined means AIX once knew about them, but at last boot couldn't find
> them.  If you're sure they still exist, and are still powered on, then
> cfgmgr should move them to available.

That's almost certainly since I removed a small disk (4.5 GB) and
added a larger one (73 GB)

I thought I'd removed the old one first, but I suspect I did not do it
correctly.

I now have a volume group I can't delete, as once of the disks has
gone!


> You shouldn't have to install disks via smit.  Plug the disk in, run
> cfgmgr.

Thanks. That makes thinkgs a lot easier. So why is such a complex
proceedure put on the smit menu?

> Tony Evans

Thank you for your help Tony.

I seem to be having trouble with disks. I've just put a SCA disk on
the other SCSI bus via a 68 -> 80 pin adapter, but find it using
cfgmgr. I know those adapters are often not great, but in theory at
least it should allow me to get another disk in the machine - I have a
load of 36 GB SCA disks lying around, but no 68-pin ones.

Dave

Rick Ekblaw

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Sep 16, 2010, 7:31:24 PM9/16/10
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David Kirkby wrote:
> I seem to be having trouble with disks. I've just put a SCA disk on
> the other SCSI bus via a 68 -> 80 pin adapter, but find it using
> cfgmgr.

David, if your 7025-F50 has a typical configuration, you don't have an
"other" SCSI bus, both the hot-swap backplane and the SCSI devices in
the top bay positions are sharing the same SCSI controller. By default,
the hot-swap backplane uses SCSI addresses 8-13 (left to right), leaving
0-6 for the top bay positions. A tape drive is usually SCSI address 5
and the CD-ROM is typically 3 or 6, but you can set the address jumpers
any way you like (avoiding conflicts, of course). You can even use
address 14 because the hot-swap backplane only has 6 positions.

Rick Ekblaw

David Kirkby

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Sep 16, 2010, 8:20:26 PM9/16/10
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Thank you Rick. The service manual (page 1-3) shows SCSI ids for those
three bays

Far leff (what I used) = 6
Centre (where my tape drive is) = 5
Right (where CD is) = 4

I must admit, I did not check those others were right - I just went
along with the with what the service manual shows, and intended
setting it to 6. Perhaps I should have thought about it a bit more and
actually checked them. In fact, thinking about it more, I think I set
it to 5, which might well have conflicted with the tape drive!!

Anyway, the tape drive is pretty useless - it struggles to eject a
tape, so I've ordered a DDS-4 one, which should be here tomorrow. I'll
check the SCSI ID's again tomorrow. I suspect I have created a
conflict on the bus, as I'm pretty sure I set it to 5, not the 6 I had
intended. So if the tape is on 5, which it probably is, there's two
devices on the same SCSI ID, which of course is bad news.

Dave

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