Originally posted by: akaidnek

Hello,

After migrate VIOS disks fron SAN to another,
I had a problem on a on LPAR specific VG (raw device content for Informix).

1. sh –xv Importvg –y osshomdbvg hdisk10

…

1. synchronize the lvcb, the database and the volume group information in LVM
2. Pass the -K flag (don't lock VG) to synclvodm.
3. The VG is already locked from putlvodm above

synclvodm -K $RFLAG $LFLAG $L_DEVICE $FFLAG $VGNAME
+ synclvodm -K osshomdbvg
synclvodm: No logical volumes in volume group osshomdbvg.
…

I had view that on the VIOS :
lqueryvg -Atp hdisk# retourn "0" on LV Count field !!?

Did i lost my LV ??? please help me.

Thanks,
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Originally posted by: akaidnek

Please did you have an issue ?

Thanks
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Originally posted by: sajjadhashimi

Some questions;
How did you migrate VIOS disks from SAN to another?
Did you make any changes to LPAR specific storage too?

what does lspv, lsvg, lsvg -o (and if osshomdbvg variedon, lsvg -l vgname, lsvg -p vgname) output look like on LPAR?
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Originally posted by: akaidnek

Hello,
Thank you for your help.

Here my responses :

How did you migrate VIOS disks from SAN to another?
We migrate from EMC SAN to Hitachi VSP Solution. We had installed HDLM on the two VIOS and we had verified that to LPAR are OK and importvg here are OK also.

Did you make any changes to LPAR specific storage too?
No change to LPAR. the rootvg are activated normally.
what does lspv, lsvg, lsvg -o (and if osshomdbvg variedon, lsvg -l vgname, lsvg -p vgname) output look like on LPAR?

#importvg -y osshomdbvg hdisk12
Synclvodm: No logical volumes in volume group osshomdbvg
osshomdbvg

lsvg -o
..
osshomdbvg
..

lspv
root@ptsm0ev:/ # lspv
hdisk0 0003d129cb416737 rootvg active
hdisk5 0003d129342dd4a7 tsmlog_vg active
hdisk7 00c0bb35514207bc osshomdbvg active
hdisk8 00c0bb355142fd95 osshomdbvg active
hdisk9 00c0bb3551437ed2 osshomdbvg active
hdisk10 00c0bb355144ea82 osshomdbvg active
hdisk11 00c0bb3551456b89 osshomdbvg active
hdisk12 00c0bb3551483591 osshomdbvg active
hdisk13 00c0bb355148b674 osshomdbvg active
hdisk14 0003d129b82f5de9 tstvg active

1. lsvg -l osshomdbvg

tstvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT

1. lsvg -l tstvg

tstvg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
lvdbtstdbs24_2 jfs 1 1 1 closed/syncd N/A
lvdbtstdbs24_3 raw 1 1 1 closed/syncd N/A
I think that i lost my data ???

Thank you :)
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Originally posted by: sajjadhashimi

so you only moved VIOS storage from EMC SAN to Hitachi SAN ??
your lpar (ptsm0ev i believe is the name) still has EMC SAN provisioned to it from VIOS?

or could it be that you now have new Hitachi SAN on your lpars too. If so, did you or your SAN Admin first rezone/mirror/migrate the data somehow? Did you make changes to your vhosts mapping. There is a LOT to check, i can't even possibly write every single thing, but to start with check your vhosts mapping (on VIOS) and go from there (lsmap -all |more), lsdev -Cc disk (what do you see EMC, Hitachi or both), what disks are mapped to your lpar (EMC or Hitachi)
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Originally posted by: akaidnek

All these check are OK (SAN, Zoning, vhosts mapping with same hdisk# pvid before and after Hitachi VSP solution).

Have you an explication for :

1. Synclvodm: No logical volumes in volume group osshomdbvg
did i lost my data if my disks are good ?

2. Is there a specific action if the content of the volume group is LV raw type for Informix ?

I hope it was not of malice from we ?

Thank you,
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Originally posted by: sajjadhashimi

There shouldnt be any specific action in regards of type of lv. I still dont know what type of disks do you have (both Before and After your changes), how was data migrated to new disk, if that is the case. you shouldnt be losing data just like that. Do you have lunid info (before and after, disk sizes etc), I won't soley rely on "pvid", you gotta look further. Don't know what & how synclvodm would help any in solving this case.
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Originally posted by: akaidnek

Thank you very much for your valuable information.

I will ask the SAN ADMIN to feedback and check. I will keep you posted.

Thanks,
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