vg00 mirroring
This is a small cookbook about mirroring the vg00 I’ve compiled throughout the years, well it’s really more like a list with the commands but I believe it can be of usefulness for some of the newbies out there. It covers HP-UX 11.23 for PA-RISC and 11.23 and 11.31 for IA64.
PA-RISC 11.23
First initialize the disk.
root@ayane:/# pvcreate -f -B /dev/rdsk/c0t6d0
Now make the disk bootable writing the LIF header.
root@ayane:/# mkboot -l /dev/dsk/c0t6d0
And the LIF files, I’m using the unenforced quorum option because in my example vg00 has only two PVs.
root@ayane:/# mkboot -a 'hpux -lq' /dev/dsk/c0t6d0
Add the new PV to vg00.
root@ayane:/# vgextend vg00 /dev/dsk/c0t6d0
Create the mirrors of the logical volumes within vg00 in the new PV.
root@ayane:/# for i in $(vgdisplay -v vg00 | grep "LV Name" | awk '{ print $3 };')
> do
> lvextend -m 1 $i /dev/dsk/c0t6d0
> done
When the mirror is finished.
root@ayane:/# lvlnboot -r /dev/vg00/lvol3 /dev/vg00
root@ayane:/# lvlnboot -b /dev/vg00/lvol1 /dev/vg00
root@ayane:/# lvlnboot -s /dev/vg00/lvol2 /dev/vg00
root@ayane:/# lvlnboot -d /dev/vg00/lvol2 /dev/vg00
Specify the new disk as alternate boot path and add it to /stand/bootconf.
root@ayane:/# setboot -a 0/0/0/3/0.6.0
root@ayane:/# cat /stand/bootconf
l /dev/dsk/c0t5d0
l /dev/dsk/c0t6d0
root@ayane:/#
And it’s done. To check that everything correct.
root@ayane:/# vgdisplay -v vg00
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 10
Open LV 10
Max PV 16
Cur PV 2
Act PV 2
Max PE per PV 4384
VGDA 4
PE Size (Mbytes) 32
Total PE 8748
Alloc PE 4076
Free PE 4672
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0
--- Logical volumes ---
.
.
.
--- Physical volumes ---
PV Name /dev/dsk/c0t5d0
PV Status available
Total PE 4374
Free PE 2336
Autoswitch On
Proactive Polling On
PV Name /dev/dsk/c0t6d0
PV Status available
Total PE 4374
Free PE 2336
Autoswitch On
Proactive Polling On
root@ayane:/#
root@ayane:/# lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/dsk/c0t5d0 (0/0/0/3/0.5.0) -- Boot Disk
/dev/dsk/c0t6d0 (0/0/0/3/0.6.0) -- Boot Disk
Boot: lvol1 on: /dev/dsk/c0t5d0
/dev/dsk/c0t6d0
Root: lvol3 on: /dev/dsk/c0t5d0
/dev/dsk/c0t6d0
Swap: lvol2 on: /dev/dsk/c0t5d0
/dev/dsk/c0t6d0
Dump: lvol2 on: /dev/dsk/c0t5d0, 0
root@ayane:/#
root@ayane:/# setboot
Primary bootpath : 0/0/0/3/0.6.0
HA Alternate bootpath : 0/0/0/0/0.0.0
Alternate bootpath : 0/0/0/3/0.5.0
Autoboot is ON (enabled)
Autosearch is ON (enabled)
root@ayane:/#
root@ayane:/# lifls -l /dev/dsk/c0t6d0
volume ISL10 data size 7984 directory size 8 05/09/22 09:37:09
filename type start size implement created
===============================================================
HPUX -12928 584 1024 0 06/10/27 14:23:07
ISL -12800 1608 242 0 05/09/22 09:37:09
AUTO -12289 1856 1 0 05/09/22 09:37:09
PAD -12290 1864 1468 0 05/09/22 09:37:09
LABEL BIN 3336 8 0 07/07/17 19:42:29
root@ayane:/#
Itanium 11.23
The procedure of mirroring vg00 in an Itanium HP-UX 11.23, although shares some part with the PA-RISC differs in some critical area. The main difference is the partitioning of the disk, the boot disks in an Integrity server must have an specific layout with three partitions:
- EFI
- HPUX
- HPSP (HP Service Partition)
Preparation of the disk:
root@asoka:/# touch /tmp/partitionfile
root@asoka:/# cat <<EOF >> /tmp/partitionfile
> 3
> EFI 500MB
> HPUX 100%
> HPSP 400MB
> EOF
root@asoka:/# cat partitionfile
3
EFI 500MB
HPUX 100%
HPSP 400MB
root@asoka:/#
root@asoka:/# idisk -wqf /tmp/partitionfile /dev/rdsk/c1t1d0
Make it bootable and copy the AUTO file. As it can be viewed in the example below as <number_of_partition> has been added to the device in order to identify the partition in which the operation will be executed.
root@asoka:/# insf -eCdisk
root@asoka:/# mkboot -e -l /dev/rdsk/c1t1d0
root@asoka:/# echo "boot vmunix -lq" >> /tmp/AUTO.lq
root@asoka:/# efi_cp -d /dev/rdsk/c1t1d0s1 /tmp/AUTO.lq /EFI/HPUX/AUTO
Create the HPSP partition.
root@asoka:/# dd if=/dev/rdsk/c0t1d0s3 of=/dev/rdsk/c1t1d0s3 bs=1024k
Like in PA-RISC initialize the PV and add it to the VG.
root@asoka:/# pvreate -f -B /dev/rdsk/c1t1d0s2
root@asoka:/# vgextend vg00 /dev/dsk/c1t1d0s2
Mirror the Logical Volumes.
root@asoka:/# for i in $(vgdisplay -v vg00 | grep "LV Name" | awk '{ print $3 };')
> do
> lvextend -m 1 $i /dev/dsk/c1t1d0s2
> done
Set the content of the LABEL file, edit the /stand/bootconf like in the PA-RISC procedure and add the new disk as alternate HA boot path.
root@asoka:/# setboot -h <HW_PATH>
To check that everything is properly configured you can use the same commands as in PA-RISC and the command idisk to check the correct partitioning of the disk.
root@asoka:/# idisk -p /dev/rdsk/c1t1d0
idisk version: 1.32
EFI Primary Header:
Signature = EFI PART
Revision = 0x10000
HeaderSize = 0x5c
HeaderCRC32 = 0xa498de56
MyLbaLo = 0x1
MyLbaHi = 0x0
AlternateLbaLo = 0x88aacbf
AlternateLbaHi = 0x0
FirstUsableLbaLo = 0x22
FirstUsableLbaHi = 0x0
LastUsableLbaLo = 0x88aac9c
LastUsableLbaHi = 0x0
Disk GUID = 24e8312a-20cf-11dd-8001-d6217b60e588
PartitionEntryLbaLo = 0x2
PartitionEntryLbaHi = 0x0
NumberOfPartitionEntries = 0xc
SizeOfPartitionEntry = 0x80
PartitionEntryArrayCRC32 = 0xae99dcc3
Primary Partition Table (in 512 byte blocks):
Partition 1 (EFI):
Partition Type GUID = c12a7328-f81f-11d2-ba4b-00a0c93ec93b
Unique Partition GUID = 24e83378-20cf-11dd-8002-d6217b60e588
Starting Lba Lo = 0x22
Starting Lba Hi = 0x0
Ending Lba Lo = 0xfa021
Ending Lba Hi = 0x0
Partition 2 (HP-UX):
Partition Type GUID = 75894c1e-3aeb-11d3-b7c1-7b03a0000000
Unique Partition GUID = 24e83396-20cf-11dd-8003-d6217b60e588
Starting Lba Lo = 0xfa022
Starting Lba Hi = 0x0
Ending Lba Lo = 0x87e2821
Ending Lba Hi = 0x0
Partition 3 (HPSP):
Partition Type GUID = e2a1e728-32e3-11d6-a682-7b03a0000000
Unique Partition GUID = 24e833b4-20cf-11dd-8004-d6217b60e588
Starting Lba Lo = 0x87e2822
Starting Lba Hi = 0x0
Ending Lba Lo = 0x88aa821
Ending Lba Hi = 0x0
root@asoka:/#
Itanium 11.31
The 11.31 section will be short since the procedure is almost equal to the 11.23 one. You have to take into account that if you have migrated to the new agile view (and you should have ;-D ) a few things will change. The new agile view use _p1, _p2 and _p3 to identify the partitions of the disk instead of the classic s1, s2 & s3 and the paths will change from dsk/rdsk `` to disk/rdisk, the names of the devices as well.
A few of examples will show it.
root@piroko:/# efi_cp -d /dev/rdisk/disk4_p1 /tmp/AUTO.lq /EFI/HPUX/AUTO
root@piroko:/# pvcreate -fB /dev/rdisk/disk4_p2
root@piroko:/# vgextend rootvg /dev/disk/disk_p2
root@piroko:/# for i in $(vgdisplay -v vg00| grep "LV Name" | awk '{ print $3 };')
> do
> lvextend -m 1 $i /dev/disk/disk4_p2
> done
And we are done. As always every comment or correction will be welcome.
See you next time.
Juanma.
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