Hello,
I have some doubts about the dvd/cd physical on power machine and AIX.
I see on my AIX lpar and see there is 1 DVD drive and its physical location
I check on the managed system IO tab. See the screenshot.
I didn't find the location code of DVD drive above in the list (screenshot attached)
I'm surprised that on power machine did not have any optical device. Please correct if I'm wrong for this case.
Try to mount the DVD to see its content but not success. But the status of DVD drive is available, it should mean that DVD media is loaded. I'm not sure.
I have some doubts about the dvd/cd physical on power machine and AIX.
I see on my AIX lpar and see there is 1 DVD drive and its physical location
OK, first: WHERE do you see the DVD drive? From the below output i cannot see which system the output is from. The LPAR? The VIOS? Something else?
Second:
Quote:
Originally Posted by Phat
Note that the "-P2-" in the location code means "Planar 2". Your screenshot below only shows items from Planar 1. It is either wrong or incomplete.
Quote:
Originally Posted by Phat
But the status of DVD drive is available, it should mean that DVD media is loaded. I'm not sure.
No. The status "Available" means that a device which was configured once is indeed connected and working - the "device", not a media in it. To understand how this works, here is an example: attach a harddisk to a system. Run cfgmgr and the harddisk device will be created. It will be "available". Now disconnect the harddisk again. It will become "defined", because its definition in the ODM (you remember from the other thread?) is still there but the disk is not. If you now use rmdev on it the ODM definitions will be removed and the device will vanish, but if you don't it will stay there. If you would reattach the disk it will go from "defined" to "available" again.
Usually you create a CD-device with a certain SMITty-panel, smitty mkdvd (or maybe smitty mkcd, i am not entirely sure) or something such. Then you attach the physical DVD drive via a DLPAR-operation and remove it the same way again. Once the drive is available you can mount/umount media until you remove the drive via another DLPAR-operation again.
--> sorry my fault. Please see full screenshots attached zip.
Sorry, but still: no. Your first output showed a location code of:
Code:
U78CB.001.WZS0GY4-P2-D15
"U78CB.001.WZS0GY4" is a certain enclosure (probably the main one), "P2" means "Planar 2" and "D15" is the slot where the hardware is attached. The drive should be in this enclosure, but attached to the other planar.
The screen shots in the zip-file show the enclosures:
At first: which hardware is this? It looks like a very big (and old) 570 with a lot of additional RIOs (I/O drawer?) added over time. Still, the second planar of the (main?) unit doesn't show up, neither as unassigned slots nor as adapter cards in the list. So, the list is still incomplete or wrong.
It would be interesting if you could tell us a bit more about your hardware, though: what nightmare of system is this and why in Hell don't you have any VIOS on it? It would make life so much easier!
Regarding the CD-drive directly: start by trying to mount it with:
Code:
mount /cd
which should work if the drive and everything else is defined correctly. Chances are your (Linux-inspired?) command did not work because several automatisms stood on their respective toes.
If this doesn't work, proceed:
Quote:
Originally Posted by Phat
The strange here is I cannot find the location of DVD drive on hardware list of managed system.
OK, maybe you (or whoever?) created the DVD device wrong. I remember that often being a problem.
First, make sure the /cd directory over which you want to mount later is really there (yes, i know, but i have seen stranger things).
Second, remove the DVD drive entirely (rmdev -Rdl, then run cfgmgr. Next, you open smitty storage and allocate the drive.
Here is a page describing the process. Notice that things can go wrong if you don't follow this procedure. This way it has always worked for me.
Ok so from the LPAR you are trying to find the CDROM run a lsdev -Cl cd0 -F parent
On one of my S824-42A's this is the path to the CD drive:
Code:
# lscfg -vpl cd0
cd0 U78C9.001.WZS01PX-P2-D27 SATA DVD-RAM Drive
Manufacturer................IBM.
Machine Type and Model......RMBO0140512
ROS Level and ID............RA65
Device Specific.(Z0)........058002028F000030
Part Number.................74Y7346
EC Level....................N23938
FRU Number..................74Y7341
Hardware Location Code......U78C9.001.WZS01PX-P2-D27
PLATFORM SPECIFIC
Name: disk
Node: disk
Device Type: block
# lsdev -Cl cd0 -F parent
sata0
# lscfg -vpl sata0
sata0 U78C9.001.WZS01PX-P1-C14-T1 Controller SATA Protocol
PLATFORM SPECIFIC
Name: sata
Node: sata
Device Type: sata_ioa
So, when you look at the HMC, the optical drive is hanging off P1-C14-T1.
This is why bakunin was saying VIO's make this easier. You could virtualize the optical drive and dynamically add it to any lpar. The above example I gave was from a box with no VIO. 100% of resources of the frame given to the lpar.
Last edited by RecoveryOne; 06-14-2019 at 10:11 AM..
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