Re: lvm2 disk replacement
On 6/9/05, cwinl <cwinl-debian-user@lnnu.edu.cn> wrote:
>
> hi,all
>
> i have a DELL PE2800 server with 10 300GB disks.i make 3 PV which are 3
> RAID0.then a LV cross the whole 3 PV.
> now , one of RAID0 is unstable.
> so i want to change disk.
> but i can't lose data.
>
You should've been aware of the consequences of using RAID 0.
At any rate, have you tried doing a manual copy via cp? It might be
slow, but you might get better results as opposed to using pvmove.
> here is 'df' information:
>
> /dev/mapper/nicvg-niclv 2.0T 774G 1.2T 40% /ftproot
>
> and here is 'pvscan' information:
>
> ftp:~# pvscan
> /dev/hda: open failed: No medium found
> PV /dev/sdb1 VG nicvg lvm2 [838.09 GB / 0 free]
> PV /dev/sdc1 VG nicvg lvm2 [558.72 GB / 0 free]
> PV /dev/sdd1 VG nicvg lvm2 [558.72 GB / 0 free]
> Total: 3 [1.91 TB] / in use: 3 [1.91 TB] / in no VG: 0 [0 ]
>
> the unstable PV is /dev/sdb1
>
> i want to move data from /dev/sdb1 to the reset PV such as /dev/sdc1 and
> /dev/sdd1.
> i think the disk space is enough .
> but when i use command 'pvmove -v /dev/sdb1' i got wrong info:
>
> ftp:~# pvmove -v /dev/sdb1
> Finding volume group "nicvg"
> No extents available for allocation
>
> my question is :
> the reset of disk space is 1.2TB
> but why 'pvscan' say free space is zero?
> why i can't move data?
> how can i solve the problem?
>
> don't say add another disk to the server. i had added 10 disks to it and
> there is no space to plug even one.
--
Paolo Alexis Falcone
pfalcone@gmail.com
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