Re: [CentOS] OT LVM question

2011-03-24 Thread S.Tindall

On Thu, 2011-03-24 at 10:06 -0400, Steve Campbell wrote:
> The setup is a Raid6 of 5 drives. As best I can understand, this is 
> basically a warning caused by Raid itself duplicating the UUID on all of 
> the drives, as it should. For some reason, though, LVM is now looking at 
> each drive in the container instead of looking at the device the Raid is 
> presenting to LVM.
> 
> Haven't changed anything in the conf file, but keep seeing a filter 
> suggestion to resolve the warning. All LVM related commands show the 
> same duplicate error. Don't know what changed that caused this to start 
> happening, and it may have been going on for some time. I just noticed 
> it when I needed to start investigating what might be a failing drive in 
> the container. It only shows up when I issue an LVS type command or 
> reboot. Being Centos, the reboot rarely happens.
> 
> Thanks for the reply. I know I'm not offer much help here, so sorry for 
> that.
> 
> On 3/24/2011 8:02 AM, Digimer wrote:
> > On 03/24/2011 07:33 AM, Steve Campbell wrote:
> >> I've got a situation here where my LVM is showing the following problem:
> >>
> >> Found duplicate PV xx: using /dev/sdb2 not /dev/sda2
> >>

Normally, you can just change the uuid on the duplicate PV to resolve
the issue.

# pvchange -u /dev/sdb2

Not sure that will work in your case.

Steve (a different Steve :-)


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Re: [CentOS] OT LVM question

2011-03-24 Thread Steve Campbell
The setup is a Raid6 of 5 drives. As best I can understand, this is 
basically a warning caused by Raid itself duplicating the UUID on all of 
the drives, as it should. For some reason, though, LVM is now looking at 
each drive in the container instead of looking at the device the Raid is 
presenting to LVM.

Haven't changed anything in the conf file, but keep seeing a filter 
suggestion to resolve the warning. All LVM related commands show the 
same duplicate error. Don't know what changed that caused this to start 
happening, and it may have been going on for some time. I just noticed 
it when I needed to start investigating what might be a failing drive in 
the container. It only shows up when I issue an LVS type command or 
reboot. Being Centos, the reboot rarely happens.

Thanks for the reply. I know I'm not offer much help here, so sorry for 
that.

steve

On 3/24/2011 8:02 AM, Digimer wrote:
> On 03/24/2011 07:33 AM, Steve Campbell wrote:
>> I've got a situation here where my LVM is showing the following problem:
>>
>> Found duplicate PV xx: using /dev/sdb2 not /dev/sda2
>>
>> Not sure what causes this and I really don't have a clue as to what the
>> consequences are when seeing this  or how to fix it. Google just
>> confuses me with any suggestions.
>>
>> Can anyone offer any help, please?
>>
>> Steve Campbell
> What is the setup supposed to be? Have you altered lvm.conf in any way?
> What does 'pvscan', 'vgscan' and 'lvscan' show? What, if anything,
> happened before this issue arose?
>

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Re: [CentOS] OT LVM question

2011-03-24 Thread Scott Robbins
On Thu, Mar 24, 2011 at 08:02:47AM -0400, Digimer wrote:
> On 03/24/2011 07:33 AM, Steve Campbell wrote:
> > I've got a situation here where my LVM is showing the following problem:
> > 
> > Found duplicate PV xx: using /dev/sdb2 not /dev/sda2
> > 
> > Not sure what causes this and I really don't have a clue as to what the 
> > consequences are when seeing this  or how to fix it. Google just 
> > confuses me with any suggestions.

Is this with EMC HBA's?  If so, they will show drives for each
connection.  



-- 
Scott Robbins
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rush into anything. I've been hurt, you know. 

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Re: [CentOS] OT LVM question

2011-03-24 Thread Kwan Lowe
On Thu, Mar 24, 2011 at 7:33 AM, Steve Campbell  wrote:
> I've got a situation here where my LVM is showing the following problem:
>
> Found duplicate PV xx: using /dev/sdb2 not /dev/sda2
>
> Not sure what causes this and I really don't have a clue as to what the
> consequences are when seeing this  or how to fix it. Google just
> confuses me with any suggestions.

Were these drives once mirrored?
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Re: [CentOS] OT LVM question

2011-03-24 Thread Digimer
On 03/24/2011 07:33 AM, Steve Campbell wrote:
> I've got a situation here where my LVM is showing the following problem:
> 
> Found duplicate PV xx: using /dev/sdb2 not /dev/sda2
> 
> Not sure what causes this and I really don't have a clue as to what the 
> consequences are when seeing this  or how to fix it. Google just 
> confuses me with any suggestions.
> 
> Can anyone offer any help, please?
> 
> Steve Campbell

What is the setup supposed to be? Have you altered lvm.conf in any way?
What does 'pvscan', 'vgscan' and 'lvscan' show? What, if anything,
happened before this issue arose?

-- 
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[CentOS] OT LVM question

2011-03-24 Thread Steve Campbell
I've got a situation here where my LVM is showing the following problem:

Found duplicate PV xx: using /dev/sdb2 not /dev/sda2

Not sure what causes this and I really don't have a clue as to what the 
consequences are when seeing this  or how to fix it. Google just 
confuses me with any suggestions.

Can anyone offer any help, please?

Steve Campbell

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