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тАО11-20-2005 07:10 PM
тАО11-20-2005 07:10 PM
I am extending one vg by 200GB by following command..
But its not extended by 200GB....
Please refer the following error..screenshot..
yogeshg@mbpscw01/>vgextend /dev/vgstrm02 /dev/dsk/c12t2d2
vgextend: Warning: Max_PE_per_PV for the volume group (5759) too small for this PV (25599).
Using only 5759 PEs from this physical volume.
Volume group "/dev/vgstrm02" has been successfully extended.
Volume Group configuration for /dev/vgstrm02 has been saved in /etc/lvmconf/vgstrm02.conf
yogeshg@mbpscw01/>umount /ixgfs_str9
Solved! Go to Solution.
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тАО11-20-2005 07:15 PM
тАО11-20-2005 07:15 PM
Re: IVEXTEND
This means that the maximum size of a lun that you can add to your VG is
5759 * 8 = 45 GB.
The easiest way is to add 4 Luns of 45 GB to vgstrm02.
You can check the max_pe_per_PV with the command vgdisplay -v vgstrm02
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тАО11-20-2005 07:16 PM
тАО11-20-2005 07:16 PM
Re: IVEXTEND
There is no way to crrect this but only to re-create vg.
man vgcreate for details.
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тАО11-21-2005 07:42 AM
тАО11-21-2005 07:42 AM
SolutionA couple of options seem obvious,
One, split the 200gig partition up into smaller luns or smaller disks in the array subsystem and add the bunch of smaller disks to the vg (this will be harder to manage in the future sense you will use up more of the max pvs per vg)
Two, create a new vg with just the 200 gig disk in it and migrate the logical volumes over to it one at a time. (this may take several reboots but possibly not as much down time)
Three, create backups of all the file systems and logical volumes, drop the existing vg, and recreate the vg with all the physical volumes in it, recreate the lvs and file systems, and restore from backup (this will take more down time but should only take one reboot)
Hope that helps some
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тАО11-21-2005 07:52 AM
тАО11-21-2005 07:52 AM
Re: IVEXTEND
The message means just what it says -- namely that only 5759 PE were used. Multiply this by your PESIZE and you will see how much of the 200GB you wanted was used.
The geometry of the LVM header is fixed during 'vgcreate' The '-e max_pe' argument sets the maximum number of physical extents
that can be allocated from any one of the physical volumes in the volume group begin created. You have reached this limit.
The only way to change this is to destroy and recreate the volume group.
Your 'vgextned' was partially successful; taht is, it did as much as it could.
Regards!
...JRF...