Need Help - Urgent

[S.S.]

Hi Kapil,

Thank you for advicing me.

I couldn't export the vg that unavailable disks are spanned to a LV.

Following are the outputs which would be very clear.


$ sudo /usr/sbin/vgdisplay -v test4db4|more
--- Volume groups ---
VG Name /dev/test4db4
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 16
Cur PV 4
Act PV 4
Max PE per PV 65535
VGDA 8
PE Size (Mbytes) 32
Total PE 14396
Alloc PE 14396
Free PE 0
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0

--- Logical volumes ---
LV Name /dev/test4db4/test4db4
LV Status available/syncd
LV Size (Mbytes) 460672
Current LE 14396
Allocated PE 14396
Used PV 4


--- Physical volumes ---
PV Name /dev/dsk/c4t2d2
PV Name /dev/dsk/c8t2d2 Alternate Link
PV Name /dev/dsk/c14t2d2 Alternate Link
PV Name /dev/dsk/c18t2d2 Alternate Link
PV Name /dev/dsk/c22t2d2 Alternate Link
PV Name /dev/dsk/c26t2d2 Alternate Link
PV Name /dev/dsk/c32t2d2 Alternate Link
PV Name /dev/dsk/c36t2d2 Alternate Link
PV Status available
Total PE 4799
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/dsk/c32t1d5
PV Status unavailable
Total PE 3199
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/dsk/c36t1d5
PV Status unavailable
Total PE 3199
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/dsk/c4t1d5
PV Name /dev/dsk/c28t1d5 Alternate Link
PV Name /dev/dsk/c24t1d5 Alternate Link
PV Name /dev/dsk/c18t1d5 Alternate Link
PV Name /dev/dsk/c14t1d5 Alternate Link
PV Name /dev/dsk/c6t1d5 Alternate Link
PV Status available
Total PE 3199
Free PE 0
Autoswitch On
Proactive Polling On


$

$ sudo /usr/sbin/lvdisplay -v /dev/test4db4/test4db4|more
--- Logical volumes ---
LV Name /dev/test4db4/test4db4
VG Name /dev/test4db4
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 460672
Current LE 14396
Allocated PE 14396
Stripes 0
Stripe Size (Kbytes) 0
Bad block on
Allocation strict
IO Timeout (Seconds) default

--- Distribution of logical volume ---
PV Name LE on PV PE on PV
/dev/dsk/c4t2d2 4799 4799
/dev/dsk/c32t1d5 3199 3199
/dev/dsk/c36t1d5 3199 3199
/dev/dsk/c4t1d5 3199 3199

[Kapil Jha]

I am sorry SS I still do not understand what problem you are facing.

BR,
Kapil+

[Akif_1]

Hi SS,

Be specific with your query and attach output file along with the reply.

#As i understand
#Remove VG space will be used for new VG / Existing VG

Clear above two points ...... I think KAPIl deserve for some ITRC points so assign whenever u get replies....

Rgd's

[johnsonpk]

>>###### first VG display ........

VG Name /dev/test4db4
Cur PV 2 ******
Act PV 2
Total PE 7998 ******
Alloc PE 4799
Free PE 3199 ******
LV Name /dev/test4db4/test4db4
LV Size (Mbytes) 153568 ******
Current LE 4799 ******
Allocated PE 4799
Used PV 1 ******
PV Name /dev/dsk/c4t1d5
PV Name /dev/dsk/c6t1d5 Alternate Link
PV Name /dev/dsk/c14t1d5 Alternate Link
PV Name /dev/dsk/c18t1d5 Alternate Link
PV Name /dev/dsk/c24t1d5 Alternate Link
PV Name /dev/dsk/c28t1d5 Alternate Link
PV Name /dev/dsk/c32t1d5 Alternate Link
PV Status available
Total PE 3199
Free PE 3199 *********



>>>######## Second Vg display .........


VG Name /dev/test4db4
Cur PV 4 ***********
Act PV 4
Total PE 14396 ********
Alloc PE 14396
Free PE 0

LV Name /dev/test4db4/test4db4
LV Status available/syncd
LV Size (Mbytes) 460672
Current LE 14396 ******
Allocated PE 14396
Used PV 4 *********

PV Name /dev/dsk/c32t1d5
PV Status unavailable
Total PE 3199 ****
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/dsk/c36t1d5
PV Status unavailable
Total PE 3199 ******
Free PE 0
Autoswitch On
Proactive Polling On

PV Name /dev/dsk/c4t1d5
PV Name /dev/dsk/c28t1d5 Alternate Link
PV Name /dev/dsk/c24t1d5 Alternate Link
PV Name /dev/dsk/c18t1d5 Alternate Link
PV Name /dev/dsk/c14t1d5 Alternate Link
PV Name /dev/dsk/c6t1d5 Alternate Link
PV Status available
Total PE 3199 ********
Free PE 0


By closly comparing the two vgdisplay output you posted on two different posts , we can observe the below thing which seems to me Weird....

(see the lines with ***** on the vgdisplay output )

1) on the first vgdiplay , there was only two PV including the new one whcih you just extended and in the second output it becomes 4 and pvs listed are same
2)on the first vgdisplay /dev/dsk/c4t1d5 was primary and c6t1d5,c14t1d5,c18t1d5,c24t1d5,c28t1d5,c32t1d5 were all alternate link for that .. werein the second vgdisplay
/dev/dsk/c32t1d5 ,/dev/dsk/c36t1d5 & /dev/dsk/c4t1d5 are considered as separte PVs not just alternate links
3) LV size has bee increased from 153 GB to 460 GB, but you have only added 100GB LUN , This proves the above statement , (alternate links are considered as separate pvs)

4) the path /dev/dsk/c36t1d5 was not there in the first vgdisplay and on second it shows as a independent PV with out alternate links . was it added later ?
5) the second vgdisplay shows both the unavialable pV has used for the LV and,in that case you can not remove pV from VG untill the lv reduced from those PVS .

It is clear that there is some changes happened after adding the pv to that vg (other than lvextend) . What storage you have ? is it Hitachi ?Are you sure the old lvmtab is restored back ? whats is the O/S version ? do you have any LUN scanning software like powerpath/syminq/xpinfo/evainfo, try identifieing wwn number each pv.

Also, I would recommand you to take a back up of the LV before you play around with the situatiuon

Regards!
johnson

[S.S.]

Hi Johnson and Kapil,
Thank you for helping me.

I have totally destroyed the VG and have re-created it.
This problem got resolved.

[S.S.]

Problem solved.