[linux-lvm] Missing link in /dev/<domain>?
Greg Freemyer
greg.freemyer at gmail.com
Fri Aug 11 19:53:35 UTC 2006
Alasdair,
Quick follow-up. I said below that vgmknodes is correctly recreating
my link, but actually the symbolic link it is creating is pointing to
the non-working enty /dev/mapper/my-domain-data, not the working
-data-real entry.
Greg
On 8/11/06, Greg Freemyer <greg.freemyer at gmail.com> wrote:
> On 8/11/06, Alasdair G Kergon <agk at redhat.com> wrote:
> > On Fri, Aug 11, 2006 at 01:59:35PM -0400, Greg Freemyer wrote:
> > > my-domain-data
> > > my-domain-data-real
> >
> > > The unexpected entry is the -data-real one.
> >
> > Did you try anything with snapshots?
> >
> Yes, I routinely perform a snapshot everynight via cron. No idea if a
> snapshot existed when the machine went down.
>
> > See what vgmknodes does.
> >
> I renamed the manually created link from data to data.tmp, then ran vgmknodes.
>
> The data link was successfully recreated.
>
> > Post the output of dmsetup info -c and lvs -va.
> >
> # dmsetup info -c
> Name Maj Min Stat Open Targ Event UUID
> TruStore--Data-data-real 253 2 L--w 1 1 0
> LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBxxpvaosSsuQnSubLnpkprJIBEdn1VHiV-real
> TruStore--Data-home 253 0 L--w 1 1 0
> LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBHU7HFSYOTsxTwH6Pg1c4k0UQOK7O4j6X
> TruStore--Data-data 253 3 ---w 0 0 0
> LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBxxpvaosSsuQnSubLnpkprJIBEdn1VHiV
> TruStore--Data-config 253 1 L--w 1 1 0
> LVM-mMDI3Wi6Av0TlwI4D905RvPDfWM3rNlBG5XBMCNoneiIFa16MFUHMmmhPgvEF3da
>
> # lvs -va
> File descriptor 4 left open
> Finding all logical volumes
> LV VG #Seg Attr LSize Maj Min KMaj KMin Origin
> Snap% Move Copy% Log LV UUID
> config TruStore-Data 1 -wi-ao 1.00G -1 -1 253 1
> G5XBMC-None-iIFa-16MF-UHMm-mhPg-vEF3da
> data TruStore-Data 1 owi-d- 63.00G -1 -1 253 3
> xxpvao-sSsu-QnSu-bLnp-kprJ-IBEd-n1VHiV
> data_snap TruStore-Data 1 swi--- 45.00G -1 -1 -1 -1 data
> m4ZSZG-ba0q-Fgco-sYcy-e0DJ-V3SI-Bb0r6C
> home TruStore-Data 1 -wi-ao 10.00G -1 -1 253 0
> HU7HFS-YOTs-xTwH-6Pg1-c4k0-UQOK-7O4j6X
>
> Hopefully that is not too badly word wrapped.
>
> > Alasdair
> > --
> > agk at redhat.com
>
> Thanks
> Greg
> --
> Greg Freemyer
> The Norcross Group
> Forensics for the 21st Century
>
--
Greg Freemyer
The Norcross Group
Forensics for the 21st Century
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