lvlnboot :unable to configure

[A.K.]

Hi all,
When I am trying to mirror a new disk on my R class machine with HPUX 11.00
I get the following message:
lvlnboot :unable to configure swap logical volume
swap logical volume size beyond the IODC max address
What should I do and what is IODC?

Thanks,
A.K.

[Paula J Frazer-Campbell]

HI

This should help:-

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x0a521012aa92d5118ff10090279cd0f9,00.html



Paula

[Ted Ellis_2]

iodc is I/O dependent code and it is dependent on the model and hardware you have

When you created the second boot disk, did you create it in such a way that it will be a bootable disk... there is a specific sequence..

pvcreate -B /dev/rdsk/
vgextend /dev/vg00 /dev/dsk/
mkboot /dev/rdsk/
mkboot -a "hpux -lq /stand/vmunix" /dev/rdsk/
lvextend -m 1 /dev/vg00/lvol1 /dev/dsk/
lvextend -m 1 /dev/vg00/lvol2 /dev/dsk/

also.. check what the R class limits are on swap devices (IODC).. that sounds like what the complaint is focused on...

you may be violating the max limit... how bif do you want it? Or are you just mirroring the existing swap device.

[James R. Ferguson]

Hi:

From the man pages for 'lvlnboot':

/begin_quote/

A dump logical volume, or a swap logical volume used as a dump volume, must lie within the first 2 GB (< 2 GB) of the physical volume. The lvlnboot command will not allow a dump logical volume to be configured that crosses the 2 GB boundary, but it will allow such a swap logical volume to be configured.

/end_quote/

When you mirror your vg00 logical volumes, make sure that (at least) lvol1, lvol2 and lvol3 are mirrored in that order.

Regards!

...JRF...

[S.K. Chan · Accepted solution]

I've seen this before (lesson learnt for me) .. when you do your mirroring, did you follow the order of the LVs as they appear in the primary root disk ? First find out the order of all your LVs in the primary root disk ..
# pvdisplay -v /dev/dsk/c1t6d0 | more
Take a look at the output of this compare it with that of the mirrored disk, are the LVs in the same order and same extents ?
If they are not then you got to "lvreduce" all of the LVs and "lvextend" them again..
# lvreduce -m 0 /dev/vg00/ /dev/dsk/
==> repeat for all LVs
# lvextend -m 1 /dev/vg00/ /dev/dsk/
==> remirror them as the same order
Then complete the rest of the steps.

[Dietmar Konermann]

Just a short notice, since the 11.00 lvlnboot man page is not absolutely up-to-date.

Root, primary swap and dump as defined with lvlnboot need to be placed on disk within the range covered by the "IODC max address".

Depending on your hardware this maximum is:

- 2GB
- 4GB
- or much more with block addressing

11.X uses at least with recent (PCI based) machines the block adressing mode, which effectively imposes no relevant limitation.

I assume Your R-Class will experience a 4GB maximum.

Regards...
Dietmar.