> Yes. The area begin with "LABELONE" is PV label,
Looks like the LVM developers foresaw my brainfart and left the first
sector of the disk for me to bugger up without buggering up LVM. :-)
Applause.
--
Ray Morris
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On 12/17/2009 08:03:08 PM, Brian J. Murrell wrote:
On Thu, 2009-12-17 at 19:48 -0500, Takahiro Yasui wrote:
>
> Yes. The area begin with "LABELONE" is PV label,
Looks like the LVM developers foresaw my brainfart and left the first
sector of the disk for me to bugger up without buggering up LVM. :-)
> which is recorded in
> the first sector by default.
Hrm. Do you really mean "first" there or second, which is sector 1 if
you start counting with 0?
> This is the description from the pvcreate
> man page.
>
> --labelsector sector
> By default the PV is labelled with an LVM2
identifier in its
> second sector (sector 1).
Yes, this looks so.
> This lets you use a different sector
> near the start of the disk (between 0 and 3
inclusive - see
> LABEL_SCAN_SECTORS in the source). Use with care.
> You don't have any problem on the PV, do you?
I don't think I do:
# pvdisplay /dev/sda
--- Physical volume ---
PV Name /dev/sda
VG Name datavol
PV Size 931.51 GB / not usable 1.71 MB
Allocatable yes
PE Size (KByte) 4096
Total PE 238467
Free PE 85356
Allocated PE 153111
PV UUID C22uVB-4m26-5cvl-I11V-NXCm-mVNo-UTAXUH
But of course, I just want to get the opinion of the experts.
> I don't think you need something to repair the PV.
I don't think so either, but of course, do want to confirm my
suspicion.
Thanx much for your insight.
b.
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