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Re: [linux-lvm] pvscan takes a lot of time



Is your system scanning dummy nodes like nbd* or something?  What does
the log file look like?


On Wed, 2004-04-21 at 11:17, Tomas wrote:
> Hi all LVM:ers... (Hmm .. almost sound like lamers ;-) )
> 
> I have upgraded a Mandrake 9.2 system to Mandrake 10.0 Community. The
> lvm1 volumes was imported correctly. When I had the volumes imported and
> ready I converted them into lvm2
> 
> Now pvscan takes a lot of time. I can't remember if it took a long time
> to pvscan before I converted the volumes. At least I know for sure pvscan
> ran quite fast on MDK 9.2
> 
> Still pvscan takes a long time to complete +1 minute and on my other
> systems running lvm1 or lvm2 it takes seconds. Have I done something
> wrong?
> The /dev/md10 and /dev/md20 are soft mirrors.
> 
> Also the summary of GB seem to be wrong.
> 
> Output from pvscan -v below
> 
> Yes I know. I like partitions or at least liked them. ;-)
> I will rebuild this to fewer partitions in the future I am in progress of
> doing that for the moment.
> 
> pvscan -v
>     Wiping cache of LVM-capable devices
>     Wiping internal cache
>     Walking through all physical volumes
> 
> ->>> Here it takes a LOT of time
> 
>   PV /dev/md10   VG mirr_vg01   lvm2 [18,97 GB / 1,84 GB free]
>   PV /dev/md20   VG mirr_vg01   lvm2 [24,00 GB / 4,19 GB free]
>   PV /dev/hda5   VG work_vg01   lvm2 [29,25 GB / 0    free]
>   PV /dev/hdc5   VG work_vg01   lvm2 [8,50 GB / 2,41 GB free]
>   PV /dev/hda6   VG work_vg01   lvm2 [8,06 GB / 0    free]
>   PV /dev/hdc7   VG work_vg01   lvm2 [3,44 GB / 0    free]
>   PV /dev/hdb2   VG work_vg01   lvm2 [24,00 GB / 0    free]
>   PV /dev/hdd7   VG work_vg01   lvm2 [7,97 GB / 4,81 GB free]
>   PV /dev/hdd8   VG work_vg01   lvm2 [7,97 GB / 1,19 GB free]
>   PV /dev/hdd9   VG work_vg01   lvm2 [1,22 GB / 0    free]
>   PV /dev/hda2   VG burn_vg01   lvm2 [29,30 GB / 96,00 MB free]
>   PV /dev/hdc2                  lvm2 [24,03 GB]
>   PV /dev/hda3                  lvm2 [29,30 GB]
>   PV /dev/hdc6                  lvm2 [8,55 GB]
>   PV /dev/hdd2                  lvm2 [2,49 GB]
>   PV /dev/hdb3                  lvm2 [24,03 GB]
>   PV /dev/hdd3                  lvm2 [2,49 GB]
>   PV /dev/hdb4                  lvm2 [42,93 GB]
>   PV /dev/hdd5                  lvm2 [8,00 GB]
>   PV /dev/hdd6                  lvm2 [8,00 GB]
>   Total: 20 [164,36 GB] / in use: 11 [14,53 GB] / in no VG: 9 [149,83 GB]
> 
> Best regards
> /Tomas
> 
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