You would have to be careful with the MPEX method as this is a message
file and, if the file was NOT empty, then MPEX might delete the data in
the message file. However, I suspect the XLTRIM option is safe, as it
only deals with the unused segments..
If the file in question is frequently used, you might be better to
leave the file alone - you have to question how long it takes MPE to
re-allocate a new segment as the file grows.
-----Original Message-----
From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On
Behalf Of Ken Hirsch
Sent: 03 January 2006 20:22
To: [log in to unmask]
Subject: Re: [HP3000-L] MSG file question?
Greg Terterian wrote:
[...]
>but when the file is getting empty again, the disk space is not
released...
>
>SQLMSG 2109B VAM 0 2000007 1 256 1 *
>
>Is there a way to free up the disk space again (of course in my case we
>are talking 14,000,000 sectors of disk storage) without purging and
>rebuilding this file?
>
>
>
If you have MPEX, you can
ALTFILE SQLMSG;XLTRIM
In a program, you can close it with
FCLOSE(filenum, 16, 0);
See
http://docs.hp.com/en/32650-90875/ch04s33.html
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