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05-29-2002 06:23 AM
05-29-2002 06:23 AM
I have an A500 "rp2450" with an SC10 with 10 drives. It it is set in as split mode.
This is a new box so I want to set up the as mirrored. Mirroring drives 1,3,5,7,9 to 2,4,6,8,10.
I have created 5 vol groups with one drive each. I used sam to do this.
How do I mirror them to the other 5 drives?
Can you help?
Did I miss a step?
Marty
This is a new box so I want to set up the as mirrored. Mirroring drives 1,3,5,7,9 to 2,4,6,8,10.
I have created 5 vol groups with one drive each. I used sam to do this.
How do I mirror them to the other 5 drives?
Can you help?
Did I miss a step?
Marty
The only thing that always remain the same are the changes.
Solved! Go to Solution.
1 REPLY 1
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05-29-2002 07:07 AM
05-29-2002 07:07 AM
Solution
Lets assume that this is what you currently got ..(I'll use the same notation 1,3,5,7,9 and 2,4,6,8,10) since you said you've got 5 VGs created already.
vg01-disk1
vg02-disk3
vg03-disk5
vg04-disk7
vg05-disk9
I would prefer to use command line if you don't mind. Next vgextend your VGs with the other set of drives.
# vgextend /dev/vg01 /dev/dsk/
# vgextend /dev/vg02 /dev/dsk/
# vgextend /dev/vg03 /dev/dsk/
# vgextend /dev/vg04 /dev/dsk/
# vgextend /dev/vg05 /dev/dsk/
Next when you create your LVs make sure you give a "-m 1" option to tell it to create a mirror copy and since you got only 2 disks in each VG, it'll create the mirrored copies on the other set of disks. For example ..
Creating lvol1 (800MB) in vg01 and make sure 1 copy is mirrored..
# lvcreate -L 800 -n lvol1 -m 1 /dev/vg01
Do ..
# lvdisplay -v /dev/vg01/lvol1 | more
and you'll see the extents are now mirrored..
Now create the FS and mount it..
# newfs -F vxfs /dev/vg01/rlvol1
# mkdir /test
# mount /dv/vg01/lvol1 /test
Remember to edit /etc/fstab to make the mount point permanent.
vg01-disk1
vg02-disk3
vg03-disk5
vg04-disk7
vg05-disk9
I would prefer to use command line if you don't mind. Next vgextend your VGs with the other set of drives.
# vgextend /dev/vg01 /dev/dsk/
# vgextend /dev/vg02 /dev/dsk/
# vgextend /dev/vg03 /dev/dsk/
# vgextend /dev/vg04 /dev/dsk/
# vgextend /dev/vg05 /dev/dsk/
Next when you create your LVs make sure you give a "-m 1" option to tell it to create a mirror copy and since you got only 2 disks in each VG, it'll create the mirrored copies on the other set of disks. For example ..
Creating lvol1 (800MB) in vg01 and make sure 1 copy is mirrored..
# lvcreate -L 800 -n lvol1 -m 1 /dev/vg01
Do ..
# lvdisplay -v /dev/vg01/lvol1 | more
and you'll see the extents are now mirrored..
Now create the FS and mount it..
# newfs -F vxfs /dev/vg01/rlvol1
# mkdir /test
# mount /dv/vg01/lvol1 /test
Remember to edit /etc/fstab to make the mount point permanent.
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