[CentOS] Found duplicate PV

Markus Falb wnefal at gmail.com
Wed Dec 4 17:03:51 UTC 2013

On 04.Dez.2013, at 15:57, Markus Falb wrote:

> On 04.Dez.2013, at 15:11, m.roth at 5-cent.us wrote:
>> Markus Falb wrote:
>>> ...
>>> # pvdisplay
>>> Found duplicate PV b79x0kLXR9mAC0z0IZUxyJG1VC24Crl7: using /dev/sda2 not
>>> /dev/md1
>>> --- Physical volume ---
>>> PV Name               /dev/sda2
>>> VG Name               vg_sys
>>> PV Size               1.36 TB / not usable 6.81 MB
>> <snip>
>> smartctl -t short
>> to start. And is there anything in your logfiles saying something like "
>> Device: /dev/sdb [SAT], 98 Currently unreadable (pending) sectors"?
> Interesting, I have this in /etc/smartd.conf
> DEVICESCAN -n standby -a -m root -s (L/../../6/00|S/../.././00)
> but according to the selftest logs it seems it is only checking sdb but *not* sda. I'll have to check this out.
> A manual short test succeeded.
> However, a failing disk should not affect LVM, should it?


# pvs /dev/sda2
  Found duplicate PV b79x0kLXR9mAC0z0IZUxyJG1VC24Crl7: using /dev/md1 not /dev/sda2
  PV         VG     Fmt  Attr PSize PFree  
  /dev/md1   vg_sys lvm2 a--  1.36T 553.16G

# pvs /dev/sdb2
  Failed to read physical volume "/dev/sdb2"

smart status tells me

5 Reallocated_Sector_Ct   0x0033   001   001   036    Pre-fail  Always   FAILING_NOW 4095

smartd did not send warning mail, selftests are successful, only in the logfiles is

Device: /dev/sdb [SAT], FAILED SMART self-check. BACK UP DATA NOW! 
Device: /dev/sdb [SAT], Failed SMART usage Attribute: 5 Reallocated_Sector_Ct.

I think I will replace sdb. 

Thank You, Markus

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