Re: onarchive question -- help!
Posted in 1997
In article <331223EF.7E02@netcomuk.co.uk>, Neil Truby
<ntruby@netcomuk.co.uk> writes
>> I am currently writing a book for O'Reilly Publishing about enterprise
>> backup and recovery, and would really appreciate hearing anything
>> you would like to ask me or tell me. If you have problems with
>> something, then others will as well. Can you think of anything
>> else that should go in such a book?
>
>Well, i can give you my opinion on a couple of aspects of Informix
>back-up/recovery functionality. It may be that I have missed something,
>so I'm pleased to stand corrected:
>
>1. (I have a lot of trouble explaining this point to Informix pros.) I
>don't really understand why OnLine insists that you have the original
>paths available for a restore. It should be possible to do a restore as
>follows; if the chunk(s) for the rootdbs, or any chunk for any other
>dbspace, is unavailable then the user should be prompted for the name of
>a valid alternative chunk location.
the original paths should be links to the actual devices since when you
replace a disk the device name may well change.
>
>
>2. Doing a "strings" on an archive will allow you to pull off the
>$ONCONFIG settings applicable at the time of the archive. But so far as
>I am aware, the timestamp of the archive is not available. This could
>be very useful.
>
When you restore using ontape it first reads the tape and displays a
header which includes archive level (0,1,2) and date/time taken,
You can then say say y/n as to whether or not you want to retore.
>3. ontape should permit the user to specify an alternate location to
>$TAPEDEV for the location of the archive (for those of us who archive to
>disk).
>
Again use links.
>Regards
>
>Neil Truby
>Chase Manhattan
>Bournemouth, UK
--
David Williams