Access to rootvg

[dthmilla]

Dear experts,
I worked with special software at a 7028-6E4 4xPower4+ 1,45 GHz / 8 GB and AIX5L PowerV 5.2 (5765-E62) and therefore was no update to 5.3 or so.
Now the admin tried to enable a second network card and the
system boot hung at NFS/NIS trying to connect never-ending. There was no login possibility.
Starting in maintenance mode from CD there was no access to the hard disk (lqueryvg: unable to access special device file). Access thru serial connection will also not work.

lspv-display is: hdisk0 00 5f b5 fa 12 87 fd cd None
hdisk1 00 5f b5 fa 85 9c 9d 2b None
I assume the problem is the lost name rootvg?
lsdev -Cc disk delivers: hdisk0 Available 1S-08-00-8,0 N/A
hdisk1 Available 1S-08-00-9,0 N/A

The commands 'lqueryvg -Atp hdisk0' and 'odmget CuDv' deliver long expressions.
I can these redirect to a text-file but not transfer (no access to the wrong 630 machine).

All solutions like such problems I found in forums are at least with an access to the
hard disk.
Some of the proposed commands are not available (lsvg, varyoffvg, errpt, bootinf, bosboot,
mkszfile, mkvgdata, cfgvg, lsps ...).
If I want to write 'rootvg' to the disk the 'mapfile' is missing (I understand). But I have no
idea of the right numbers. I want to save the old configuration with the special software.
Unfortunally the admin had no backup from the (special) installation in 2003. I joined
the machine later and assumed the admin knows all solution for problems - false.
Is there hope for catching the disk?
Thanks for assistance and best regards.

Newbie in the depths of AIX-internals.

 

[THOR01]

Did soomeone look at the boot order or boot devices. Boot into SMS set boot devices and boot order

 

[dthmilla]

Thank You, but that is not the problem. I can select the boot order by SMS (changing from hard disk boot to CD to start the maintenance mode) and by bootlist command also.
I can not correct the wrong enable of a 2nd network card.
No Login possibility in each case:
- Booting from hdisk0: never ending boot and no access.
- Booting from CD (maintenance mode): no access to hard disk
for correcting any entry in a file
- No access to machine by serial connection (S1)
[error messages in my first posting]

Best regards

 

[DSMARWAY]

Hi

If by just enabling the network card you have lost both disks i.e. cnnot access hdisk0 or hdisk1 via maintenance mode , this seems rather unfortunate

How did the admin enable the network card?
did he enter an ip address and hostname if so was this on the same network as the original one ?

If you have lost access to both disks , check the hardware
is the scsi card acive when the server is powered on ?

what messages ( i.e. numbers) do you get on the lcd display of the server.

 

[MoreFeo]

Isn't it possible to physically remove the 2nd network card?

 

[dthmilla]

Hi, back at forum and thanks.
The activation of the 2nd network card is not the real problem
if I can access to hard disk and correct some wrong entries in
config files.
I got now the admin history: He activated the 2nd network card
to Gigabit access at an other identical machine and it works
very well. The one and only difference is the OS AIX5L 5.3 in-
staed of 5.2 at mine.
I can not real understand the problem of no access to hard disk. Some commands read entries of configuration - for instance:
lsattr -El hdisk0
pvid 005f..... N/A False
queue_depth 3 N/A False
size_in_mb 146800 N/A False
max_transfer 0x4000 " True
unique_id 2708...scsi N/A False
PR_key_value none " True
reserve_policy single_path N/A True
PCM PCM/friend/scsiscsd N/A True
dvc_support " False
algorithm fail_over " True

And the 'lsdev -Cc adapter' command delivers:
sa0 Available XX-XX N/A
sa1 " " "
sa2 " " "
siokma0 " " "
fda0 " " "
ide0 " " "
scsi0 " " "
scsi1 " " "
moj0 " " "
scsi2 " " "
sioka0 " " "

I've to proof if the 2nd network card is (physical)removable
- no result up to now.

Thanks and best regards

 

[dthmilla]

Supplemantary remark: network cards are at main board and not
removable.

 

[dthmilla]

2nd suplementary remark: Admin said the system hungs during
enable of 2nd network card by smitty. He hoped to correct this
by reboot after machine without power and the trouble began.