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01-22-2013 03:49 AM - edited 01-23-2013 12:20 AM
01-22-2013 03:49 AM - edited 01-23-2013 12:20 AM
Hello to all,
we do have a weird problem.....
In the process of an lvreduce from a mirror lv to a 1 mirror lv, somebody wanted to perform that for half of the pvg.
The pvg exists of 16 disks and the lv is reduced with 8 disks.
The situation now is a 1 mirror lv spreaded of the 2 remaining pvg and 8 from the 16 disks of the pvg that had to be removed.
I cannot remove the remaining 8 disks of that pvg with lvreduce, because there is only 1 mirror left.
Anyone any idea how to solve this?
Regards, Alfons Velthof
Solved! Go to Solution.
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01-22-2013 04:53 AM
01-22-2013 04:53 AM
Re: mirror problem
IMHO the most safe solution is to mirror the LVOL again to the disks you want to keep, then remove the mirror from the disks you want to remove.
Hope this helps!
Regards
Torsten.
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01-22-2013 05:06 AM
01-22-2013 05:06 AM
Re: mirror problem
Hello Torsten,
that is not an option here.
We have the situation of 3 pvg's and 1 mirror.
Regards, Alfons
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01-22-2013 05:11 AM
01-22-2013 05:11 AM
Re: mirror problem
More details needed.
(vgdisplay, pvdisplay, lvdisplay, etc)
Hope this helps!
Regards
Torsten.
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There are only 10 types of people in the world -
those who understand binary, and those who don't.
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01-22-2013 06:25 AM
01-22-2013 06:25 AM
Re: mirror problem
>>More details needed.
Yes, please. I really don't understand what the problem is.
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01-22-2013 07:06 AM
01-22-2013 07:06 AM
Re: mirror problem
We are moving our data from 2 EVA's to 2 new F400 3PAR's and use hpux mirror for that.
The steps to do that are:
1. create disks on the 3PAR systems.
2. add the disks to the volume group
3. add the disks from 1 3PAR to the /etc/lvmpvg as a new pvg
4. lvextend [/dev/vgxxx/lvxxxx] -m 2 [new disks]
5. after syncing is compleet lvreduce [/dev/vgxxx/lvxxxx] -m 1 [old disks from 1 EVA
6. vgreduce [dev/vgxxx] [old disks from EVA]
then do the same trick for the other 3PAR and EVA, so we end up with 2 new 3PAR's in a mirror.
What went wrong here is:
We decided to do a lvreduce for not all the disks of the EVA, because there were to many disks for the commandline.
We got an error and now the situation is:
3 pvg's (EVA1, EVA2, 3PAR1)
1 mirror
So the mirror is located on 3 pvg's.
I cannot delete the remaining disks from the EVA with lvreduce because mirror is already 1
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01-22-2013 07:15 AM
01-22-2013 07:15 AM
Re: mirror problem
The 'pvmove' command may be what you need. That allows you to move extents between disks.
If you can show use some vgdisplay and lvdisplay output from the LV, that may help.
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01-22-2013 10:47 PM
01-22-2013 10:47 PM
Re: mirror problem
>We are moving our data from 2 EVAs to 2 new F400 3PARs and use HP-UX mirror for that.
No peer motion available for 3.1.2 for that?
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01-22-2013 11:49 PM
01-22-2013 11:49 PM
Re: mirror problem
I did apply a repost with attachment Yesterday, but it didn't show in the forum?
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01-23-2013 12:12 AM
01-23-2013 12:12 AM
Re: mirror problem
>I did apply a repost with attachment yesterday,
Did you give it a .txt suffix?
Please delete your last two giant posts and use the Post Options > Edit Reply to add the attachments to your first post.
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