see my comments * ... andreas sschmidt, csc, germany





"Sohrt, Jeff" <[log in to unmask]>@RAVEN.UTC.EDU> on 07.03.2001 06:32:49 PM

Please respond to "Sohrt, Jeff" <[log in to unmask]>

Sent by:  HP-3000 Systems Discussion <[log in to unmask]>


To:   [log in to unmask]
cc:
Subject:  Re: [HP3000-L] Disk/file defragmentation


What are the benefits of Defraging?  I'm always weary of such tools that
move my data around on the disks fearing that it might cause a problem.  Do
you do a backup first?

* not essentially needed ... but not the worst thing. you may start the
* defrag run just after a backup.

Is it a good idea to do this?  Has anyone suffered any ill effects of
Defraging with any of the vendors' tools?

* yes, if there is no unfragmented space any longer. files in continuous
* space will improve the access "speed" in ns/ms ...
* as said yesterday: DSM works like a charme ... also on DBs

I'd like to look into this.  Sherry from Lund calls me religiously each
month and I provide the same "I haven't installed it yet" response.

Similarly, although I have MPEX, I've never XLTRIM'd any files due to the
cautionary statement that was provided in the manual.  I always figured
disc(k) was cheap, so just get more.

I look forward to your replies.

jds

* I do not know the LUND tools but it's not the worst thing to defrag.
* But I also have my problems in using XLTIMming s.th. - I will NEVER
* use it ...

Art wrote:
>
> Hi Paul :)
>     We use DeFrag/X from Lund.... it works well (had some
> trouble at first
> with certain types of disc enclosures) but they got that all
> fixed up and we
> run it once a month via JMS...
>
> Art "Not a paid endorsement... like someone would pay me for
> an endorsement?
> hehe" Bahrs
>
> ----- Original Message -----
> From: "Paul Thompson" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, March 07, 2001 4:04 AM
> Subject: [HP3000-L] Disk/file defragmentation
>
>
> > I am currently looking for some information on the best software for
> > carrying out file and disk degfragmentation.
> >
> > Has anyone out there got any views or experiences they would like to
> share?
> >
> > TIA
> >
> > Paul Thompson
> > Spark Response
> >
> >