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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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