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Backup Procedures?

Hi All,

I just got an LTO backup tape device for my E450, previously I used to connect to another DLT backup driver on another Solaris machine using rhosts setting. Anyway, my boss wants me to take a full backup (ufsdump) first time, and then take incremental backups during the week for a test, then he wants me to restore something from the middle of the week.

Something new for me. Anyone know any helpfull documents? Any personal experiences? and how would you retrieve from the backup with an incremental backup being done?

Thanks.

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neteducation

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kalmen

ASKER

Very nice! Do you know how I could do consequent levels using a crontab?

neteducation

well you put all the sessions into a shell-script and start the apropriate script at the apropriate day... let's say you put

ufsdump 0vf /dev/rmt/1n /
ufsdump 0vf /dev/rmt/1n /usr
ufsdump 0vf /dev/rmt/1 /export/home

into a script that starts at the weekend

and

ufsdump 1vf /dev/rmt/1n /
ufsdump 1vf /dev/rmt/1n /usr
ufsdump 1vf /dev/rmt/1 /export/home

into another script that starts during weekdays (in the evening)

so in case of failure you need 2 tapes... the one of the weekend and the one from last night.

or

you create 5 script, one with level 0, one with level 1, one with level 2 and so on.

then you start level0-script at the weekend, level 1 script on monday evening, level 2 script on tuesday evening and so on.

this second version means that only the changes since last day are backed up during weekdays (as opposed to the solution above where everything since last weekend was backed up), which makes backup faster during the week, but in case of failure on a friday youwould need 5 tapes to restore everything (weekendtape and the ones from every evening)

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yuzh

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kalmen

ASKER

Thanks to both of you.

Cheers...