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тАО03-02-2011 09:26 AM
тАО03-02-2011 09:26 AM
Lost a VG - need to get it back
I have a machine that used to have two VG's in addition to vg00 off course
1. /dev/hpvm4a_vg00
2. /dev/hpvm4b_vg00
This morning I came in and I now only have the /dev/hpvm4a_vg00 but not hpvm4b_vg00 - I need to get it back - here is some output with some descriptive notes about my situation - any help would be really appreciated.
I am attaching a full problem description in txt. Please please help me restore my VG. Very strange.
Thanks in advance for any help -
Cheers,
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тАО03-02-2011 10:03 AM
тАО03-02-2011 10:03 AM
Re: Lost a VG - need to get it back
# vgimport -v /dev/hpvm4b_vg00 /dev/dsk/c16t0d2
Beginning the import process on Volume Group "/dev/hpvm4b_vg00".
vgimport: Volume group "/dev/hpvm4b_vg00" already exists in the "/etc/lvmtab" file.
When I try to activate the VG - it tries to connect to c18t0d2 - which seems to be down SAN side - but that shouldnt matter because this 4b volume should be on c16t0d2
# vgchange -a y /dev/hpvm4b_vg00
vgchange: Warning: Couldn't attach to the volume group physical volume "/dev/dsk/c18t0d2":
The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
vgchange: The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
vgchange: The path of the physical volume refers to a device that does not
exist, or is not configured into the kernel.
vgchange: Warning: couldn't query physical volume "/dev/dsk/c18t0d2":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query physical volume "/dev/dsk/c18t0d3":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query physical volume "/dev/dsk/c18t0d4":
The specified path does not correspond to physical volume attached to
this volume group
vgchange: Warning: couldn't query all of the physical volumes.
vgchange: Couldn't activate volume group "/dev/hpvm4b_vg00":
Quorum not present, or some physical volume(s) are missing.
# strings /etc/lvmtab
/dev/vg00
/dev/dsk/c0t0d0s2
/dev/dsk/c0t1d0
/dev/hpvm4a_vg00
/dev/dsk/c16t0d1
/dev/dsk/c18t0d1
/dev/hpvm4b_vg00
/dev/dsk/c16t0d2
/dev/dsk/c16t0d3
/dev/dsk/c16t0d4
/dev/dsk/c18t0d2
/dev/dsk/c18t0d3
/dev/dsk/c18t0d4
#
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тАО03-02-2011 10:19 AM
тАО03-02-2011 10:19 AM
Re: Lost a VG - need to get it back
But if you look at this:
disk 37 0/3/0/0/0/1.6.14.218.0.0.4 sdisk CLAIMED DEVICE NETAPP LUN ----> These disks are supposed to be the alternate links c18 disks for the c16 disks
There are no device files.
Maybe something has changed (switch port?) - you need to create the device files and import the VG with these new device files.
Hope this helps!
Regards
Torsten.
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тАО03-02-2011 12:17 PM
тАО03-02-2011 12:17 PM
Re: Lost a VG - need to get it back
After correcting - exporting - reimporting - and recreating via mknod - issue was resolved ... closing this thread
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тАО03-02-2011 12:17 PM
тАО03-02-2011 12:17 PM
Re: Lost a VG - need to get it back
After correcting - exporting - reimporting - and recreating via mknod - issue was resolved ... closing this thread