Re: Reorg of large file

[Richard Reeve <richreeve@xxxxxxxxx>]

Martin,

     If you don't reorganize the file, then you will
not gain much of the space back at all.  It is
impossible to calculate how much space you would gain
without knowing the record length.  You will gain a
little in the logical paths, but the physical file
will still 'consume' the space used by the deleted
records.  As for how long it will take - it is likely
to be a long process.  You will speed the process up
greatly by deleting all logical files that are built
over the physical file prior to reorganizing.  You
will then regenerate the logical files after the reorg
is complete. 

I would plan it for a weekend where you can let it run
un-interrupted.

Hope this helps.

Rich

--- "Saunders, Martin P"
<Martin.Saunders@capgemini.co.uk> wrote:
> All,
> 
> We have a file (approx 46 million records).  We are
> going to archive and
> delete approx. half of these.  The file is just over
> 7 gig in size and is
> REUSEDLT *No.
> 
> How much space are we likely to gain by deleting the
> records but not
> reorganising the file?
> 
> How long is reorganising the file likely to take?
> 
> AS/400 is a 9406 530 at V4R3 with 160 gig of disk
> and 2 gig of memory.
> 
> Thanks in advance for any answers,
> 
> Martin
> +---
> | This is the Midrange System Mailing List!
> | To submit a new message, send your mail to
> MIDRANGE-L@midrange.com.
> | To subscribe to this list send email to
> MIDRANGE-L-SUB@midrange.com.
> | To unsubscribe from this list send email to
> MIDRANGE-L-UNSUB@midrange.com.
> | Questions should be directed to the list
> owner/operator: david@midrange.com
> +---


=====


__________________________________________________
Do You Yahoo!?
Get email at your own domain with Yahoo! Mail. 
http://personal.mail.yahoo.com/
+---
| This is the Midrange System Mailing List!
| To submit a new message, send your mail to MIDRANGE-L@midrange.com.
| To subscribe to this list send email to MIDRANGE-L-SUB@midrange.com.
| To unsubscribe from this list send email to MIDRANGE-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---