On Sat, 2006-07-08 at 19:48 +0300, Itay wrote:
>
> From: William L. Maltby <BillsCentOS@xxxxxxxxxxxx>
>
> > From: Itay <itayf@xxxxxxxxxxxxxx>
>
> > > Also, I just started working with lvm. The following warnings
> > > are genertated whenever I run one of lvm commands on the external
> > > usb disk (MyBook by Western Digital).
>
> [snip]
>
> > > [root@frodo pilpel10]# vgcreate VGe1 /dev/sdc2
>
> > Did you do pvcreate?
>
> As far as I remember -- yes.
> When I return to my office, at the beginning of next week, I'll
> look at the terminal session to see the exact command sequence.
> But my conviction is reinforced by the output of pvscan and
> pvdisplay (wasn't in the original message) below.
>
> > > /dev/dm-11: read failed after 0 of 4096 at 5242814464: Input/output error
> > > /dev/dm-11: read failed after 0 of 4096 at 0: Input/output error
> > > /dev/dm-12: read failed after 0 of 4096 at 54460416: Input/output error
> > > /dev/dm-12: read failed after 0 of 4096 at 0: Input/output error
> [snip]
> > > Volume group "VGe1" successfully created
>
> > > [root@frodo pilpel10]# pvscan
> > > /dev/dm-11: read failed after 0 of 4096 at 5242814464: Input/output error
> > > /dev/dm-11: read failed after 0 of 4096 at 0: Input/output error
> [snip]
> > > PV /dev/sdc2 VG VGe1 lvm2 [296.13 GB / 296.13 GB free]
> > > PV /dev/sda2 VG VG00 lvm2 [232.78 GB / 1.78 GB free]
> > > Total: 2 [528.91 GB] / in use: 2 [528.91 GB] / in no VG: 0 [0 ]
> >
>
> [root@frodo ~]# pvdisplay /dev/sdc2
> /dev/dm-11: read failed after 0 of 4096 at 0: Input/output error
> /dev/dm-12: read failed after 0 of 4096 at 0: Input/output error
> /dev/dm-13: read failed after 0 of 4096 at 0: Input/output error
> /dev/dm-14: read failed after 0 of 4096 at 0: Input/output error
> --- Physical volume ---
> PV Name /dev/sdc2
> VG Name VGe1
> PV Size 296.13 GB / not usable 0
> Allocatable yes
> PE Size (KByte) 4096
> Total PE 75810
> Free PE 24098
> Allocated PE 51712
> PV UUID Ue56s5-nkax-csIU-6iBX-l4eb-hIJ1-nxJLgl
>
>
> Thanks,
> Itay
We are about to exceed my knowledge, as I have never used USB for
anything other than thumb drives on MS Win*. I believe I asked about
partitioning? If you do
sfdisk -l /dev/sdc
what does it show? If you do a
dd if=/dev/sdc2 of=/dev/null
do you get I/O errors? If so, my guess is it's not an LVM problem.
>
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--
Bill
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