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Re: [linux-lvm] PFree is 0 on a drive with nothing on it



That is correct. All drives are part of 'fileshare/lv_fileshare', which only has 400GB of data on it at the moment; which I can see reflected in the PFREE columns of the PVS output. Is there an easy way to force the LVM to rescan it's allocation unit or would I have to remove the drives and re-insert them into the LVM?


On 2009-11-05, at 10:55 AM, Ray Morris wrote:

 --- Physical Segments ---
 Physical extent 0 to 238343:
   Logical volume	/dev/fileshare/lv_fileshare
   Logical extents	0 to 238343


 OK according to that both are full of an LV
called "lv_fileshare".  Try mounting that and
see what, if anything, is on it.  Don't remember
creating that?  Try history | grep -10 lv_fileshare
for a reminder.
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Ray Morris
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On 11/05/2009 09:36:35 AM, Adam Mooz wrote:
Here it is for both SDA and SDB:
#pvdisplay -m /dev/mapper/cryptsda
File descriptor 4 left open
 --- Physical volume ---
 PV Name               /dev/mapper/cryptsda
 VG Name               fileshare
 PV Size               931.04 GB / not usable 3.87 MB
 Allocatable           yes (but full)
 PE Size (KByte)       4096
 Total PE              238344
 Free PE               0
 Allocated PE          238344
 PV UUID               6OfRxC-R59i-CVjX-igtB-pg4e-2qAw-OdiPSc
 --- Physical Segments ---
 Physical extent 0 to 238343:
   Logical volume	/dev/fileshare/lv_fileshare
   Logical extents	0 to 238343
#pvdisplay -m /dev/mapper/cryptsdb
File descriptor 4 left open
 --- Physical volume ---
 PV Name               /dev/mapper/cryptsdb
 VG Name               fileshare
 PV Size               931.04 GB / not usable 3.87 MB
 Allocatable           yes (but full)
 PE Size (KByte)       4096
 Total PE              238344
 Free PE               0
 Allocated PE          238344
 PV UUID               zCLder-PF5b-fQpy-RdMS-Ayc0-caWh-LA2Esm
 --- Physical Segments ---
 Physical extent 0 to 238343:
   Logical volume	/dev/fileshare/lv_fileshare
   Logical extents	238344 to 476687
On 2009-11-05, at 10:10 AM, Ray Morris wrote:
What is the output of?:
pvdisplay -m /dev/mapper/cryptsda
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Ray Morris
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On 11/05/2009 01:57:53 AM, Adam Mooz wrote:
Hello List,
I have a fileserver that is driving me nuts at the moment.  Setup:
4x 1TB HDD's
1x 320GB HDD
They all have the same partition layout:
512MB Swap, rest is LVM data.
The LVM only contains ~400GB of data, but 2 of the TB drives report having 0 free PFree's:
PV                   VG        Fmt  Attr PSize   PFree
/dev/mapper/cryptsda fileshare lvm2 a-   931.03G      0
/dev/mapper/cryptsdb fileshare lvm2 a-   931.03G      0
/dev/mapper/cryptsdc fileshare lvm2 a-   297.61G 297.61G
/dev/mapper/cryptsdd fileshare lvm2 a-   931.03G 633.42G
/dev/mapper/cryptsde           lvm2 --   931.04G 931.04G
I've successfully managed to remove SDE from the LVM, but I need to move the data off SDD onto either SDA or SDB. When the whole system is mounted it properly reports having 2.1TB of free space (931 * 2 + 297). Is there an easy way to fix this issue?
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