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Old 01-03-2010, 10:12 AM   #1
aix_tiger
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Question Red Hat Linux Enterprise V5 /LVM2 & LVM cleanup process


Guys

I am in a situation where i am stuck with a LVM cleanup process. Although i know a lot about AIX LVM , but this is first time i am working with Linux LVM2.

Problem is that i created two RAID arrays on storage , which appeared as mpath0 & mpath1 devices ( multipath) on RHEL. I created logical volumes and volume groups and every thing was fine till i decided to clean the storage arrays and ran following script
#!/bin/sh
cat /scripts/numbers | while read numbers
do
lvremove -f /dev/vg$numbers/lv_vg$numbers
vgremove -f vg$numbers
pvremove -f /dev/mapper/mpath$numbers\p1
done

Please note that numbers was a file in same directory, having numbers 1 and 2 in separate line.

Scripts worked well and i was able to delete definations properly ( however i now think i missed one parted command to remove the partition defination from mpath device.

When i created three new arrays , i got devices from mpath2 to mpath5 on linux and then i created vg0 to vg2.

By mistake , i ran above script again for cleanup purpose and now i got following error message

Cant remove physical volume /dev/mapper/mpath2p1 of volume group vg0 without –ff[/B]

Now after doing mind search , i now realize that i have messed up ( particularly because mpath devices did not map in sequence to vg devices and mapping was like mpath2 --- to ---- vg0 and onwards )

Now how i can cleanup the lvm definations? should i go for pvremove -ff flag or investigate further?

Can anybody help me providing any step by step procedure ? I am not concerned about data , i just want to cleanup these pv/vg/lv/mpath definations so that lvm can be cleaned up properly and i can start over with new raid arrays from storage?

Thanks in advance!!
 
Old 01-03-2010, 01:21 PM   #2
DrLove73
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Have you tried doing it manually? lv by lv, pv by pv?
 
  


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