Re : Installing harddisk on FC10

[Vincent_5]

Hi Guys,
Can I check if my way of doing is correct. I have 2 x 36GB and 4 x 72GB harddisk install on a FC10 and I want to mirror them with three new volume group. I understand that FC10 is only a JBOX without any raid configuration. Therefore, mirror disk is use to do the mirroring for the harddisk through LVM configuration in sam. Please advice??

Regards
Vincent

[Patrick Wallek]

You are correct in that mirror disk is needed to mirror on an FC10.

However, you don't mirror between Volume Groups. You mirror a logical volume that is in a volume group.

I also wouldn't use sam for this. You would be better off using the command line. You mirror via the 'lvextend' command. Have a look at the man page for more information.

[Pete Randall]

Vincent,

You will need to put the 2 x 36GB disks in one volume group and 2 of the 72GB disks in each of the other two volume groups. The it's simply a matter of creating your logical volumes and then mirroring them. I believe you can do this using SAM but it's also quite simple to create the mirrors on the command line with "lvextend -m 1 /dev/vg00/lvol3 /dev/dsk/c0t3d0", for example.


Pete

[MarkSyder]

Just to be contrary, when I tried to do this from the command line I got an error message (I don't remember what it was) so I did it in SAM and it worked perfectly.

Mark Syder (like the drink but spelt different)

[Andrew Rutter]

hi vincent,

just incase you dont realise, Mirrordisk/ux is actually a lic product from HP.

You wont have installed by default, you will need to install it and obtain a codeword for it.

once installed mirror the lvols as already stated.

Andy

[Torsten.]

Hi Vincent,

if you provide an ioscan -fn we can advice the necessary steps. I would recommend to balance the load between the 2 FC adapters.