Setting up MirrorDisk for boot partition

[steve12345]

Hi All,
I'm looking for advice on configuring mirror disk. I have 2 disks and am looking mirroring one disk to the other.
I ran the following commands,
#pvcreate -Bf /dev/rdsk/c1t1d0
#mkboot -l /dev/rdsk/c1t1d0

I've managed to mirror each of the partitions except for the /stand.
I ran this command, and returns no boot area,
# mkboot -a "hpux -lq (;0)/stand/vmunix" /dev/rdsk/c1t1d0
-a specified but no current boot area on /dev/rdsk/c1t1d0

Could someone advice on how to create this boot area?
Thanks in advance,
Steve

[Torsten.]

All you need is here:

http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf

(Appendix)

Of course you must mirror /stand too.

Is this an Integrity server?

[steve12345]

Thanks I'll have a look at this.
Yes it's an RX2660 server. Running HP-UX B.11.23.

[Prashanth.D.S]

Hi Steve,

Here is the procedure I follow to mirror a boot disk on itanium server...

1. From HPUX, use vgdisplay to identify the disk that is in vg00. Use
ioscan to find the spare disk.

# vgdisplay -v --> vg00 is on /dev/dsk/c2t1d0s2 in this example
# ioscan -efunC disk --> Let's assume c3t2d0 for this example

2. Create the system, OS, and service partitions.

# cat </tmp/partitionfile
> 3
> EFI 500MB
> HPUX 100%
> HPSP 400MB
> EOF
# idisk -wf /tmp/partitionfile /dev/rdsk/c3t2d0
idisk version: 1.31
********************** WARNING ***********************
If you continue you may destroy all data on this disk.
Do you wish to continue(yes/no)? yes <-- Answer "yes" and not "y"

3. Create device files needed for the new partitions.

# insf -eC disk

4. Verify the partition table.

# idisk /dev/rdsk/c3t2d0

5. Verify that the device files were created properly.

# ioscan -efnC disk --> c3t2d0 is 0/1/1/1.2.0

6. Initialize the efi partition for use.

# efi_fsinit -d /dev/rdsk/c3t2d0s1

7. Populate the /efi/hpux/ directory in the new EFI system partition.

# mkboot -e -l /dev/rdsk/c3t2d0

8. Change the auto file for the mirror to boot without quorum.
NOTE: Using "s1"

# echo "boot vmunix -lq" > /tmp/AUTO.lq
# efi_cp -d /dev/rdsk/c3t2d0s1 /tmp/AUTO.lq /EFI/HPUX/AUTO

NOTE: We assume that if we boot from the primary, the mirror is fully
functional and therefore we don't need to override quorum. Your site
might require that both disks override quorum.

9. Verify the contents of the auto file on the primary and the mirror.
NOTE: Using "s1"

# efi_cp -d /dev/rdsk/c2t1d0s1 -u /EFI/HPUX/AUTO /tmp/AUTO.pri
# efi_cp -d /dev/rdsk/c3t2d0s1 -u /EFI/HPUX/AUTO /tmp/AUTO.alt
# cat /tmp/AUTO.pri
# cat /tmp/AUTO.alt

10. Add the new partition to vg00.
NOTE: Using "s2"

# pvcreate -fB /dev/rdsk/c3t2d0s2
# vgextend vg00 /dev/dsk/c3t2d0s2

11. Mirror all logical volumes in vg00.
NOTE: Using "s2"

# lvextend -m 1 /dev/vg00/lvol1 /dev/dsk/c3t2d0s2
# lvextend -m 1 /dev/vg00/lvol2 /dev/dsk/c3t2d0s2
# lvextend -m 1 /dev/vg00/lvol3 /dev/dsk/c3t2d0s2
.
.
.
# lvextend -m 1 /dev/vg00/lvol8 /dev/dsk/c3t2d0s2

12. Add the new disk to /stand/bootconf.
NOTE: Using "s2"

# echo "l /dev/dsk/c3t2d0s2" >> /stand/bootconf

13. Verify that the new disk was added to vg00, and the lv's are in sync.

# vgdisplay -v vg00

14. Verify that the BDRA was updated properly. Take note of the HW paths for
step 15.

# lvlnboot -v

15. Add EFI primary and high availability boot path menu entries.

# setboot -p 0/1/1/0.1.0 <-- Set primary disk
# setboot -h 0/1/1/1.2.0 <-- Set mirror disk
# setboot -b on <-- Set autoboot on

16. Verify that the primary and mirror boot paths are configured properly.

# setboot

17. Test the new mirror by booting off of it.

# shutdown -r -y 0

18. Select "HP-UX HA Alternate Boot" to test the mirror.

EFI Boot Manager ver 1.10 [14.61] Firmware ver 2.21 [4334]
Please select a boot option
HP-UX Primary Boot: 0/1/1/0.1.0
HP-UX HA Alternate Boot: 0/1/1/1.2.0
EFI Shell [Built-in]

20. Verify which disk/kernel you booted from.

# grep "Boot device" /var/adm/syslog/syslog.log
vmunix: Boot device's HP-UX HW path is: 0.1.1.1.2.0

21. Remove temporary files.

# rm /tmp/partitionfile /tmp/AUTO*

Best Regards,
Prashanth

[steve12345]

Hi I've ran through the Appendix in the HP doc and I'm not sure if my lvlnboot looks correct? It looks like the lvlnboot didn't work correctly?

[root]# lvlnboot -R /dev/vg00
lvlnboot: Logical Volume has no extents.
lvlnboot: Logical Volume has no extents.
lvlnboot: Logical Volume has no extents.
vgcfgbackup: Invalid LVMREC on Physical Volume /dev/rdsk/c1t1d0
[root]# lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/dsk/c1t0d0s2 (0/1/1/0.0.0.0.0) -- Boot Disk
/dev/dsk/c1t1d0 (0/1/1/0.0.0.1.0)
/dev/dsk/c1t1d0s2 (0/1/1/0.0.0.1.0) -- Boot Disk
Boot: lvol1 on: /dev/dsk/c1t0d0s2
Root: lvol3 on: /dev/dsk/c1t0d0s2
Swap: lvol2 on: /dev/dsk/c1t0d0s2
Dump: lvol2 on: /dev/dsk/c1t0d0s2, 0

[root]#

[Torsten.]

OK, you have a rx2660?

I would go with the integrated DAID option instead of LVM mirror.

Go to
http://docs.hp.com -> servers -> rx2660 -> Integrated raid

This will bring you to the integrated raid controller manual.

I'm on a slow connection now, unable to provide you the link.

But I'm sure this will help you. Once a disk will fail, just replace it and you are done.

[Torsten.]

found it:

http://docs.hp.com/en/J6369-90045/index.html

HP 8 Internal Port SAS Controller Users Guide: HP-UX 11i v2, 11i v3