Re: [linux-lvm] Problem with vgreduce on LVM1

[Peter Smith <peter.smith@utsouthwestern.edu>]

You are correct, this action is being barred by the fact that this PV 
thinks it still has LVs on it, which is not true. The "Cur LV 4" is not 
true. Now I have to figure out why the VG seems to think that this PV 
still has 4 LVs on it..

Peter

Peter Smith wrote:

> I'm currently looking at the source code. Meanwhile, if anyone is 
> inclined to look, I've captured the output of a "vgreduce data 
> /dev/emcpowera -d" [1]...
>
> Thanks,
> Peter
>
> [1] http://swlxrpx1.swmed.edu/for-linux-lvm-list-001
>
>
> Peter Smith wrote:
>
>> Well, that is interesting. When I do a "pvdata", it does show an 
>> extent in use, one for each of the other LVs, but that is true for 
>> all the PVs for some reason. Any ideas on how to stop that? I've 
>> already tried a "pvmove" and it says the disk is empty.
>>
>> [root@linux archive]# pvdata /dev/emcpowera
>> --- Physical volume ---
>> PV Name /dev/emcpowera
>> VG Name data
>> PV Size 785.10 GB [1646481408 secs] / NOT usable 1 GB [LVM: 127 KB]
>> PV# 1
>> PV Status available
>> Allocatable NO
>> Cur LV 4
>> PE Size (KByte) 1048576
>> Total PE 784
>> Free PE 784
>> Allocated PE 0
>> PV UUID JpYFFb-NUqC-trBf-oFm7-tbdF-65If-GZ56fw
>>
>> --- Volume group ---
>> VG Name
>> VG Access read/write
>> VG Status NOT available/resizable
>> VG # 0
>> MAX LV 256
>> Cur LV 5
>> Open LV 0
>> MAX LV Size 2 TB
>> Max PV 256
>> Cur PV 8
>> Act PV 1
>> VG Size 12.21 TB
>> PE Size 1 GB
>> Total PE 12507
>> Alloc PE / Size 9078 / 886 GB
>> Free PE / Size 3429 / 3.35 TB
>> VG UUID 5Xw9D6-qqfu-0FTg-P9pD-40NH-wRgR-wN03ip
>>
>> --- List of logical volumes ---
>>
>> pvdata -- logical volume struct at offset 0 is empty
>> pvdata -- logical volume "/dev/data/data2" at offset 1
>> pvdata -- logical volume "/dev/data/data3" at offset 2
>> pvdata -- logical volume "/dev/data/data4" at offset 3
>> pvdata -- logical volume "/dev/data/data5" at offset 4
>> pvdata -- logical volume "/dev/data/data6" at offset 5
>> pvdata -- logical volume struct at offset 6 is empty
>> pvdata -- logical volume struct at offset 7 is empty
>> pvdata -- logical volume struct at offset 8 is empty
>> pvdata -- logical volume struct at offset 9 is empty
>> <SNIP>
>> pvdata -- logical volume struct at offset 254 is empty
>> pvdata -- logical volume struct at offset 255 is empty
>> --- List of physical volume UUIDs ---
>>
>> 001: JpYFFb-NUqC-trBf-oFm7-tbdF-65If-GZ56fw
>> 002: ABNwWZ-h4la-KTcv-VukV-T8vV-PIEP-mm38cy
>> 003: oyjw8S-B1gu-snoN-k54q-bCEy-daqn-BYdDmK
>> 004: URW9Kt-ZbOn-Ov3h-ZiT5-i7aC-8Lpq-c0fp4l
>> 005: y16lho-UgMJ-1lfJ-GNTi-VXWH-Pot1-iIsOc0
>> 006: WEC9g3-fTKD-k8pV-Nnxq-Kwn3-EkNd-qV3lUE
>> 007: TCxHIb-uvjC-6xap-bLaM-lVJU-N82x-XWd10g
>> 008: fZkmf8-jaYW-1gZ6-WBqp-eNu2-s1xr-IBLQTe
>>
>> Thanks,
>> Peter
>>
>>
>> mghofran@caregroup.harvard.edu wrote:
>>
>>> You show lv=4 so don't you need to check if any of those lvols were
>>> using that particular disk, remove the lvol and then proceed?
>>>
>>> -----Original Message-----
>>> From: linux-lvm-bounces@redhat.com 
>>> [mailto:linux-lvm-bounces@redhat.com]
>>> On Behalf Of Peter Smith
>>> Sent: Tuesday, August 29, 2006 12:21 PM
>>> To: linux-lvm@redhat.com
>>> Subject: [linux-lvm] Problem with vgreduce on LVM1
>>>
>>> I can't seem to remove two physical volumes. I've removed the LVs on 
>>> them. I've deactivated the PVs. But I can not remove the PVs from the
>>> VG.
>>>
>>> Here's an example of what I'm seeing:
>>>
>>> [root@linux archive]# pvmove -v /dev/emcpowera
>>> pvmove -- checking name of source physical volume "/dev/emcpowera"
>>> pvmove -- locking logical volume manager
>>> pvmove -- reading data of source physical volume from "/dev/emcpowera"
>>> pvmove -- checking volume group existence
>>> pvmove -- reading data of volume group "data" from lvmtab
>>> pvmove -- checking volume group consistency of "data"
>>> pvmove -- searching for source physical volume "/dev/emcpowera" in 
>>> volume group "data"
>>> pvmove -- no logical volumes on empty source physical volume 
>>> "/dev/emcpowera"
>>>
>>> [root@linux archive]# vgreduce data /dev/emcpowera
>>> vgreduce -- ERROR: can't reduce volume group "data" by used physical 
>>> volume "/dev/emcpowera"
>>>
>>> [root@linux archive]# pvdisplay /dev/emcpowera
>>> --- Physical volume ---
>>> PV Name /dev/emcpowera
>>> VG Name data
>>> PV Size 785.10 GB [1646481408 secs] / NOT usable 1 GB [LVM: 127 KB]
>>> PV# 1
>>> PV Status available
>>> Allocatable NO
>>> Cur LV 4
>>> PE Size (KByte) 1048576
>>> Total PE 784
>>> Free PE 784
>>> Allocated PE 0
>>> PV UUID JpYFFb-NUqC-trBf-oFm7-tbdF-65If-GZ56fw
>>>
>>> Does anyone have any idea why I can't complete a reduce?
>>>
>>> Thanks,
>>> Peter
>>>
>>> Note:
>>> Logical Volume Manager 1.0.8-13
>>> Heinz Mauelshagen, Red Hat 03/05/2005 (IOP 10)
>>>
>>> _______________________________________________
>>> linux-lvm mailing list
>>> linux-lvm@redhat.com
>>> https://www.redhat.com/mailman/listinfo/linux-lvm
>>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>>>
>>>
>>>
>>> _______________________________________________
>>> linux-lvm mailing list
>>> linux-lvm@redhat.com
>>> https://www.redhat.com/mailman/listinfo/linux-lvm
>>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>>>
>>>
>>
>> _______________________________________________
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>> https://www.redhat.com/mailman/listinfo/linux-lvm
>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
>
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