From: Tom Stoddard (tom.stoddard@L-3com.com)
Date: Tue Jul 19 2005 - 09:55:47 EDT
I have a K370 running 10.20 (don't ask, it's a long story as to why)
that I would like to enable alternate links to a model 30 disk array. I
have spent days googling for how to do this. The best I can come up with is:
vgextend /dev/vgeven /dev/dsk/c4t3d0 and
vgextend /dev/vgodd /dev/dsk/c4t3d1
Is this correct? How do you back out a change if you make a mistake?
My system config is below:
sdisk card instance 4 SCSI target 3 SCSI LUN 0 section 0 at address
8/12.8.0.255.0.3.0 c4t3d0
sdisk card instance 4 SCSI target 3 SCSI LUN 1 section 0 at address
8/12.8.0.255.0.3.1 c4t3d1
sdisk card instance 5 SCSI target 2 SCSI LUN 0 section 0 at address
8/8.8.0.255.0.2.0 c5t2d0
sdisk card instance 5 SCSI target 2 SCSI LUN 1 section 0 at address
8/8.8.0.255.0.2.1 c5t2d1
VG Name /dev/vgeven
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 16
Cur PV 1
Act PV 1
Max PE per PV 21261
VGDA 2
PE Size (Mbytes) 4
Total PE 21256
Alloc PE 21256
Free PE 0
Total PVG 0
--- Logical volumes ---
LV Name /dev/vgeven/lveven
LV Status available/syncd
LV Size (Mbytes) 85024
Current LE 21256
Allocated PE 21256
Used PV 1
--- Physical volumes ---
PV Name /dev/dsk/c5t2d0
PV Status available
Total PE 21256
Free PE 0
VG Name /dev/vgodd
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 1
Open LV 1
Max PV 16
Cur PV 1
Act PV 1
Max PE per PV 21261
VGDA 2
PE Size (Mbytes) 4
Total PE 21256
Alloc PE 21256
Free PE 0
Total PVG 0
--- Logical volumes ---
LV Name /dev/vgodd/lvodd
LV Status available/syncd
LV Size (Mbytes) 85024
Current LE 21256
Allocated PE 21256
Used PV 1
--- Physical volumes ---
PV Name /dev/dsk/c5t2d1
PV Status available
Total PE 21256
Free PE 0
--
tom.stoddard@L-3com.com
Thomas Stoddard
L-3 Communications Avionics Systems
5353 52nd Street
Grand Rapids, MI 49512
616 285-4331
Backup? What Backup?
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