Installing builds for 11i on an 11.0 machine + mirroring drive

[Carlo Iaboni]

Hello,
I'm a newbie who bought a C3000 Visualize to develop HP-UX applications.
It is running 11.0
Questions:
1) any major differences between 11i and 11.0 that I should know about?
2) most binary downloads are built for 11i. Can I safely install and run these on 11.0?
3) My machine has two identical drives (9gig). It looks like one is not being used at all although both are part of the one and only logical volume group. How can I reconfigure the drives so that they are mirrored? I figure that 9gig is plenty for my purposes so I might as well have a backup in case of a disk crash.

THANKS PLENTY FOR YOUR HELP AND ADVICE.
Carlo

[Devender Khatana]

Hi Carlo,

I will only talk about the second disk part and let someone appropriate talk about applications. For mirroring the disk concurrently you should have a licensed product called "MirrorDisk-Ux". You can see if you have it installed by

#swlist -l bundle |grep -i mirror

If that is there you can create mirror of two drives so that everything will be written to both simultaneously and you will not be suffered by any one of them going bad.

The second option is by using a free software called ignite for replicating the data of one disk to another. The disadvantage here is that the data will not be replicated online. Apart from this you can opt to back up your changing data to some other source like backup device, ftp etc. Periodically you can update the other disk by taking backup and restoring it to other disk.

The ignite is available for free download here
http://h20293.www2.hp.com/portal/swdepot/displayProductInfo.do?productNumber=IGNITEUXB

Also see administration guide & information docs
http://docs.hp.com/en/B2355-90941/index.html
http://docs.hp.com/en/5991-0733/5991-0733.pdf

HTH,
Devender

[Steven E. Protter]

Shalom Carlo,

11i v1 offers a more advanced, more stable kernel and operating environment than 11.00.

As the OS has progressed, features are added for the new one and not the old one. The Strong random number generator is a good example of a key feature.

11i v2, has NFS version 4 as an optional add in that is not in the older OS's.

I've got a lot of experience and I've got a few systems installed on 9 GB disks. That limits the size of your /var fileystem and your /opt filesystem for optional software.

If however you are careful what you install this will do nicely. If I were buying a new system, I'd prefer an 18 GB disk.

SEP

[Carlo Iaboni]

Steven,
If I plan to install a lot of software/freeware should I leave it alone as one 18gig file system?

[Devender Khatana]

Hi,

If you have option to mirror the disks then the best will be two mirror the disks itself and there will be some 2-3 GB space left after that mirroring on both the disks that you can use unmirrored, but always back that data up using tape or by any other means available.

What is the backup strategy you are planning for if any?

HTH,
Devender

[Carlo Iaboni]

none! That's why I'm thinking of mirroring the drives.
The machine is just used for development and playing around.