Mirroring and Stripping

[Cao Da Shi]

Do LVM of HP-UX can simultaneously support mirroring and stripping for one LV.

[Leif Halvarsson_2]

Hi

Mirroring is licensed in HP-UX, but if you have this you can create a striped and mirrored LV.

[Vincent Farrugia]

Hello,

A nice lady supports mirroring and stripping :-)

No, seriously, it is supported. You have to use lvcreate -D.

http://forums.itrc.hp.com/cm/QuestionAnswer/0,,0x768fe7613948d5118fef0090279cd0f9,00.html

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x88a753921f1ad5118fef0090279cd0f9,00.html

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x27ebed6464a6d611abdb0090277a778c,00.html

amongst others.

HTH,
Vince

[harry d brown jr]

Providing you are using the latest version of vxfs.

live free or die
harry

[T. M. Louah]

Just an Overview of the installation process.
To do any kind of Mirroring you need B2491BA product which is "MirrorDisk/UX" found on the application CD .. you can oly unlock it with codeword from 800-538-1733. It is installed by swinstall :

1- Specify the Source Type as "Local CD ROM" and point the Depot Path to where the CD is mounted.

2- Choose the "Add Codeword" option from the "Actions" pull-down menu.

3- Mark the software selection and then choose "Install Analysis" from the "Actions" menu to install.

4- Once installed you need to re-apply LVM patches.

Cheers!
T??

[Andrea Guarnerio]

The answer is no.
Lvm supports striping or mirroring.
If you need both you can think about Veritas Volume Manager or use the pseudo striping feature (distributed allocation) of lvm/mirroring.

Veritas Volume Manager (in short vxvm) is a payment product. Some feature of it are included in hp-ux 11i and I don't remember if one of these is the raid 1/0 or 0/1 (mirroring striped or striping mirrored).

Otherwise what you can do with lvm is distributed allocation. It means you can allocate some in your lv one phisical extend on one disk and the second on the other disk. Then you can mirroring it. The option is -D for lvcreate or lvchange command.

Hoping this helps you.

bye

Andrea