Re: [linux-lvm] best way to make lv with 3 500G luns

["Rob Schwartz" <rschwartz@boscovs.com>]

I think you are on the right track...  Your PV's don't look right but I am 
not familiar with PV's on SCSI devs.  Using the -v and -d options have 
helped me a lot!!!

Good luck!!
----- Original Message ----- 
From: "Eric Wagar" <eric@deadhookers.org>
To: "LVM general discussion and development" <linux-lvm@redhat.com>
Sent: Friday, July 29, 2005 5:42 PM
Subject: Re: [linux-lvm] best way to make lv with 3 500G luns


> Rob Schwartz wrote:
>> Have you tried the vgcreate with the -v  (for verbose) or -d  (for debug) 
>> options?
>> ----- Original Message ----- From: "Eric Wagar" <eric@deadhookers.org>
>> To: "LVM" <linux-lvm@redhat.com>
>> Sent: Friday, July 29, 2005 5:27 PM
>> Subject: [linux-lvm] best way to make lv with 3 500G luns
>>
>>
>>> What are the steps to create a volume comprised of 3 500G SGI TP9500 
>>> LUNS on SLES9?
>>>
>>> I'm only able to get as far as pvcreate.  Afterwards, I am unable to 
>>> create a visible vg.  By that I mean, I receive no error when I issue 
>>> vgcreate, but I am unable to vgdisplay the new vg.
>>>
>>> This is on SLES9/SN2 with two module SGI A350 and using two FC paths.
> I had not used the -v or -d option prior to this, no.  But, here is the 
> information:
> assault /home/ericwa# pvcreate /dev/scsi/sdh8-0c0i0l9;pvcreate 
> /dev/scsi/sdh8-0c0i1l8;pvcreate /dev/scsi/sdh5-0c0i1l10
>  No physical volume label read from /dev/scsi/sdh8-0c0i0l9
>  Physical volume "/dev/scsi/sdh8-0c0i0l9" successfully created
>  No physical volume label read from /dev/scsi/sdh8-0c0i1l8
>  Physical volume "/dev/scsi/sdh8-0c0i1l8" successfully created
>  No physical volume label read from /dev/scsi/sdh5-0c0i1l10
>  Physical volume "/dev/scsi/sdh5-0c0i1l10" successfully created
> ...
> assault /home/ericwa# vgcreate -v u018 /dev/scsi/sdh8-0c0i1l8 
> /dev/scsi/sdh5-0c0i1l10 /dev/scsi/sdh8-0c0i0l9
> <snip>
>    Adding physical volume '/dev/scsi/sdh8-0c0i1l8' to volume group 'u018'
> <snip>
>    Adding physical volume '/dev/scsi/sdh5-0c0i1l10' to volume group 'u018'
> <snip>
>    Adding physical volume '/dev/scsi/sdh8-0c0i0l9' to volume group 'u018'
> <snip>
>    Archiving volume group "u018" metadata.
>    Creating volume group backup "/etc/lvm/backup/u018"
>  Volume group "u018" successfully created
> assault /home/ericwa# vgdisplay -v
>    Finding all volume groups
>  Found duplicate PV aLiq4sGKfFA2S2t77t8MU5V13Pe4C17K: using /dev/sdg not 
> /dev/sdr
>  Found duplicate PV DThr6w5xGUEOOflPTEpFnnyUp02BXODP: using /dev/sdw not 
> /dev/sdah
>  Found duplicate PV P5CU7BDZ9m4NdrJyR7BrhSZT3fVDV8HB: using /dev/sdx not 
> /dev/sdai
>  Found duplicate PV aLiq4sGKfFA2S2t77t8MU5V13Pe4C17K: using /dev/sdan not 
> /dev/sdr
>  Found duplicate PV DThr6w5xGUEOOflPTEpFnnyUp02BXODP: using /dev/sdl not 
> /dev/sdah
>  Found duplicate PV P5CU7BDZ9m4NdrJyR7BrhSZT3fVDV8HB: using /dev/sdm not 
> /dev/sdai
>  Found duplicate PV aLiq4sGKfFA2S2t77t8MU5V13Pe4C17K: using /dev/sdac not 
> /dev/sdr
>  Found duplicate PV DThr6w5xGUEOOflPTEpFnnyUp02BXODP: using /dev/sdas not 
> /dev/sdah
>  Found duplicate PV P5CU7BDZ9m4NdrJyR7BrhSZT3fVDV8HB: using /dev/sdat not 
> /dev/sdai
> assault /home/ericwa# pvdisplay
> <snip>
>  --- NEW Physical volume ---
>  PV Name               /dev/sdr
>  VG Name
>  PV Size               542.93 GB
>  Allocatable           NO
>  PE Size (KByte)       0
>  Total PE              0
>  Free PE               0
>  Allocated PE          0
>  PV UUID               aLiq4s-GKfF-A2S2-t77t-8MU5-V13P-e4C17K
>
>  --- NEW Physical volume ---
>  PV Name               /dev/sdah
>  VG Name
>  PV Size               542.93 GB
>  Allocatable           NO
>  PE Size (KByte)       0
>  Total PE              0
>  Free PE               0
>  Allocated PE          0
>  PV UUID               DThr6w-5xGU-EOOf-lPTE-pFnn-yUp0-2BXODP
>
>  --- NEW Physical volume ---
>  PV Name               /dev/sdai
>  VG Name
>  PV Size               542.93 GB
>  Allocatable           NO
>  PE Size (KByte)       0
>  Total PE              0
>  Free PE               0
>  Allocated PE          0
>  PV UUID               P5CU7B-DZ9m-4Ndr-JyR7-BrhS-ZT3f-VDV8HB
>
> All of the <snip> are the "Found duplicate PV" UUID lines.  This system 
> has two FC HBA's, one each connected to a FC switch, which has two ISL's, 
> and then each switch has two paths to the TP9500 controllers.
>
> I am guessing, guessing since this is my first time to use LVM, that the 
> output from pvdisplay showing "Allocatable           NO" is bad.  I have 
> tried pvchange, but it seg faults.
>
> thanks
> eric
>
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