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тАО04-27-2010 12:10 AM
тАО04-27-2010 12:10 AM
Replace disks in PVG
HP-UX 11iv1.
Have a volume group with disks organized in two PVG's, and logical volumes are mirrored between the two PVG's.
We want to replace some disks in one of the PVG's. How to do it ?
Regards,
Tommy
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тАО04-27-2010 12:20 AM
тАО04-27-2010 12:20 AM
Re: Replace disks in PVG
If you are using the same disk file ( hardware path) no need to do anything,
else just put entry of new device file under the group by editing /etc/lvmpvg.
and then follow the procedure.
As you are REPLACING the disk , nothing to do with PVG and lvmPVG
regards,
Sooraj
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тАО04-27-2010 12:23 AM
тАО04-27-2010 12:23 AM
Re: Replace disks in PVG
It is disks from SAN, and we want to replace some luns with others.
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тАО04-27-2010 12:35 AM
тАО04-27-2010 12:35 AM
Re: Replace disks in PVG
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тАО04-27-2010 01:04 AM
тАО04-27-2010 01:04 AM
Re: Replace disks in PVG
/etc/lvmpvg is a ascii file where you create two groups and say , this disks belong to different group ( normally different controllers, pvg strict policy is used to give redundancy in case of a contrleer failure).
As you are replacing the existing disk, ( idealy you have the same dsf cxtxdx), that dsf will be already there in lvmpvg.
If you are adding a new disk, just add that dsf under the grup by editing lvmpvg.
Regards,
Sooraj
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тАО04-27-2010 04:43 PM
тАО04-27-2010 04:43 PM
Re: Replace disks in PVG
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тАО04-27-2010 05:46 PM
тАО04-27-2010 05:46 PM
Re: Replace disks in PVG
mirror belongs to particular PVG where disk need to replace and mirror it again ,
Need to check or edit /etc/lvmpvg, only if the hardware paths differs from the Old bad disk HW path.
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тАО05-12-2010 12:45 AM
тАО05-12-2010 12:45 AM
Re: Replace disks in PVG
It is not clear as to why do you want to replace the disk.
If in case you are replacing then make sure you replace the disk with the same size or bigger disk.
There is a specific guide to replace a disk under LVM control.
http://h20000.www2.hp.com/bizsupport/TechSupport/CoreRedirect.jsp?redirectReason=DocIndexPDF&prodSeriesId=3367813&targetPage=http%3A%2F%2Fbizsupport2.austin.hp.com%2Fbc%2Fdocs%2Fsupport%2FSupportManual%2Fc01911837%2Fc01911837.pdf
You may follow the flowchart at page no. 29. I think it will help you.
Regards,
Raghu
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тАО05-12-2010 01:33 AM
тАО05-12-2010 01:33 AM
Re: Replace disks in PVG
You can replace the disks you want with "pvmove" and then replace the old dsf files by the new ones in file "/etc/lvmpvg".
Regards,