mirror and break mirror OS:11.23 model:ia64

[masood bt]

fyi... the existing two disks in the server are working fine.

So, our conclusion is....

1)two disks in server, third disk in hand.
(2)shutdown the server,remove one disk. insert third disk.
(3)boot the server
(4)mirror..third disk also now has same data as the original disk
(5)shutdown the server.remove third disk..insert the original(second) disk..now the server has it own original two disks still in mirrored state
(6)now i cam use the third disk to use it in some other server somewhere else.


I am also thinking that..the server..if it has a third slot..i will not remove any disk out..i will insert the disk in the third slot, lvextend -m 2
then, i will shutdown the server, remove the third disk..and use it to boot the second server

[Torsten.]

Until now I assumed you don't have a free slot.

Yes, you can do that. Your server will finally complain about a missing disk, consider to use vgreduce -f to clean this out.

[masood bt]

now i can confirm, it has altogether four slots.

>i will shutdown the server
>i will insert this thrid disk.
>mirror it.
>shutdown the server.
>remove the third disk.

( i am thus by passing mirror break / lvsplit)

i hope this works, because... this third disk is to be used to boot and to be used in a server in some other city....and if it doesnt work... lot of efforts go waste

[Torsten.]

With 11.23 you may even think about using DRD (dynamic root disk).

[masood bt]

thx..reading abt DRD now :-)