Hard disk mirroring

[rahul90]

Hi
I am using Hp-ux 11.11 vesion.I tried to mirror one disk from another.the size of original disk is 8891556 Kbytes.My new disk size is 8388608 Kbytes which is lesser than the original disk.

Now i am getting problem.Its not synchronising.can we send some solutions for this.

Thanks

Rajesh

[rayche]

Pls choose a disk that its size is same as the original one or bigger than it.

Thanks

[nanan]

Hi
There may not be a way to sync to the original disk.
If you can reduce the original disk's last part to be less then another disk size


Regards
nanan

[A. Clay Stephenson]

Bear in mind that HP-UX does not mirror at the disk level; it mirrors at the logical volume level. You should be able to fully mirror from one to the other as long as you have completely used all the space on the original Physical Volume (disk). If you have then you should backup one of the filesystems, unmount it, remove the LVOL, build a new (smaller) LVOL, build a new filesystem, mount it, and restore from backup. Don't choose one that must be available at all times. /home is probably the least critical if you must do it. If this sounds scary to you then find a disk large enough or find someone who knows what he is doing.

[A. Clay Stephenson]

By the way, if this is a boot disk there are some extra steps involved to create a alternate boot disk and the mirroring must be done in a very strict order.

[Vivek Pendse]

Hi,

First check the lvdisplay output of the newdisk on which you are mirroring, whether any stale paritions are present? Try to mirror the disk with same model number of the existing one. Also check the mirror UX License in #swlist. Send the error exactly from which command u r getting.
Rgds
Vivek Pendse