Operating System - Tru64 Unix
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How to backup the system disk on tru64 4.0G?

xxl_1
Frequent Advisor

How to backup the system disk on tru64 4.0G?

which tools can i use to backup the system disk
on two ds20 machines (using ase cluster),the os
is tru64 4.0G!

thanks
4 REPLIES
Ivan Ferreira
Honored Contributor

Re: How to backup the system disk on tru64 4.0G?

You should use vdump for backups. Run a vdump command for every file system. Use vrestore to restore the data.

For example:

vdump -0uf /dev/nrmt0h /
vdump -0uf /dev/nrmt0h /usr
vdump -0uf /dev/nrmt0h /var
vdump -0uf /dev/nrmt0h /oracle

And so on. Use the df command to identify how many file systems you have.

You must also identify your tape device (if any). You can use the uerf command and find the a line "rmt". Tape device have the /dev/rmth device name.

Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Mark Poeschl_2
Honored Contributor

Re: How to backup the system disk on tru64 4.0G?

That would depend on what filesystem(s) you are using. If you're using AdvFS then the backup utility is 'vdump', otherwise for UFS the standard 'tar' command will work fine. There are man pages for both commands to give you all the options. The fact that you're using an ASE cluster isn't really relevant to backup methods.
xxl_1
Frequent Advisor

Re: How to backup the system disk on tru64 4.0G?


may I use the command "dd" ?if it is better than the command "vdump"?
Ivan Ferreira
Honored Contributor

Re: How to backup the system disk on tru64 4.0G?

It's strongly recommended that you use vdump instead of dd. With vdump, you can only save file system data, with dd, you also copy empty blocks, also with dd, you won't be able to restore the data on another system and you won't be able to restore partial data.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?