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тАО09-09-2009 12:06 PM
тАО09-09-2009 12:06 PM
I have a volume group with 1 logical volume of 5 Terrabytes sitting on it across several /dev/dsk/vpath? ... I need to remove, 2 Terrabytes to be able to give to another volume group ... my question is, would this be the plan of attack would be:
umount file system
vgreduce /dev/dsk/vpath??
(removing 2 Terrabytes worth)
newfs file system
mount file system
pvcreate /dev/dsk/vpath??
(recreating the disk so it can be added to another volume group)
vgextend /dev/dsk/vpath??
(extending the given vpaths into the new volume group)
Please let me know if more information is needed or is I am on the right or wrong path here.
Thanks
Lynn
Solved! Go to Solution.
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тАО09-09-2009 12:27 PM
тАО09-09-2009 12:27 PM
Re: Another 11.23 with IBM SDD question
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тАО09-10-2009 12:12 AM
тАО09-10-2009 12:12 AM
Re: Another 11.23 with IBM SDD question
You will need to either lvreduce or lvremove the 5TB logical volume before you vgreduce the volume group .
If you want to preserve the current file system in situ you can use fsadm to resize it. Of course you will back it up before you start .
defrag it first: this assumes online JFS
fsadm -F vxfs -D -d -E -e /mpoint
fsadm -F vxfs -b newsize /mpoint
After that you can lvreduce the logical volume and use pvdisplay -v to show that the disks are empty before removing them from the exsisting volume group .
The newsize may fail if the exsisting file system would end up nearly full once shrunk .
I hope this is of some help
Mike
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тАО09-10-2009 02:09 AM
тАО09-10-2009 02:09 AM
SolutionBelow are your simple and exact steps to follow.
____________________________________________
OLD FS
1]Make sure that you have a atleast one copy of backup of entire file system.
2]After making sure the copy of backup,
unmount the file system,
#umount /filesystem
3]lvremove /dev/vgxx/lvxx
4]vgreduce /dev/dsk/vpath1 /dev/dsk/vpath2 ....
5]Remove the entry of lv from /etc/fstab.
____________________________________________
New file system:
6]pvcreate -f /dev/rdsk/vpath1
pvcreate -f /dev/rdsk/vpath2
pvcreate -f /dev/rdsk/vpath3.......
7]mknod /dev/vgxx/group c 64 0x"xxxxxx"
8]vgcreate vgname /dev/dsk/vapath1 /dev/dsk/vapath2....
9]lvcreate -L 2TB /dev/vgxx/lvxx -n lvname
10]newfs -F vxfs /dev/rxx/lvxx
11]mount /dev/dsk/lvxx /fs
12]Make entry in /etc/fstab.
Hope this will help you
Rgds
Yogesh
(your points are highly appritiated)
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тАО09-14-2009 06:30 AM
тАО09-14-2009 06:30 AM
Re: Another 11.23 with IBM SDD question
I hope you might have fixed your issue.My request is People are putting their precious time to solve your queries on your needy time.So please encourge them by assigning points from you.
Rgds
Yogesh
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тАО09-14-2009 07:10 AM
тАО09-14-2009 07:10 AM
Re: Another 11.23 with IBM SDD question
Thanks again
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тАО09-14-2009 07:12 AM
тАО09-14-2009 07:12 AM