Mirror from EMC bootable disk to internal disk

[Dewa Negara_4]

Hi All,

Need your advice. On my N-Class server is currently using EMC disk as bootable disk. Due to EMC migration to the new one, I have to temporarily move the bootable disk to internal disk. My plan actually will mirror the EMC bootable disk to internal disk, and then reboot the server and boot it up from internal disk. Then break all mirrors on EMC disk before doing the migration. Is there any problem to mirror EMC bootable disk to internal disk? Do you think that my system will be fine when boot from the internal disk? Please help.

Thanks.
Best Regards,
Negara

[Con O'Kelly · Accepted solution]

Hi

You shouldn't have any problem doing this. Remember that its not enough just to mirror, you'll need to build the boot area as well on the internal disk using the mkboot command.

Also reset your primary boot path to the internal disk using the setboot command.

This link provides details on creating a boot disk:
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x6967c1c4ceddd61190050090279cd0f9,00.html

As you said test your new boot disk prior to removing the EMC disks to ensure it all works.

Cheers
Con

[Thierry Poels_1]

hi,

there should be no problem at all (if you mirror correctly).

Try to boot from the mirror disks before you break the mirror.

good luck,
Thierry.



-----------------


pvcreate ???B /dev/rdsk/c2t8d0

mkboot /dev/rdsk/c2t8d0

mkboot ???a ???hpux ???lq(;0)/stand/vmunix??? /dev/rdsk/c2t8d0
mkboot ???b /usr/sbin/diag/lif/updatediaglif ???p HPUX ???p ISL ???p AUTO ???p LABEL /dev/rdsk/c2t8d0

vgextend /dev/vg00 /dev/dsk/c2t8d0

lvextend ???m 1 /dev/vg00/lvol1 /dev/dsk/c2t8d0
lvextend ???m 1 /dev/vg00/lvol2 /dev/dsk/c2t8d0
lvextend ???m 1 /dev/vg00/lvol3 /dev/dsk/c2t8d0
...

[Saurav_1]

Hi,

Perform the lvreduce commands carefully for all the LVs of Root VG. Update the BDRA finally by lvlnboot command. Keep the copy of VG by vgcfgbackup on a separate file system safe and if possible take the IGNITE backup of root VG.

Saurav

[Dewa Negara_4]

Hi All,

Thanks for your help. I am now more confident to mirror from EMC to internal disk.

Thanks for your great help.

Best Regards,
Negara