RE: Strange DASD Utilization Issue

Yeah I know.

What I was thinking about was the older models where concurrent
maintenance of DASD was an optional feature.

Do you know if concurrent maintenance is standard on all i5 models.

Charles Wilt
--
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
  

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx 
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
> Sent: Tuesday, February 28, 2006 1:37 PM
> To: Midrange Systems Technical Discussion
> Subject: RE: Strange DASD Utilization Issue
> 
> Yeah, it's called "concurrent maintenance".
> 
> Rob Berendt
> -- 
> Group Dekko Services, LLC
> Dept 01.073
> PO Box 2000
> Dock 108
> 6928N 400E
> Kendallville, IN 46755
> http://www.dekko.com
> 
> 
> 
> 
> 
> "Wilt, Charles" <CWilt@xxxxxxxxxxxx> 
> Sent by: midrange-l-bounces@xxxxxxxxxxxx
> 02/28/2006 01:21 PM
> Please respond to
> Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
> 
> 
> To
> "Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
> cc
> 
> Fax to
> 
> Subject
> RE: Strange DASD Utilization Issue
> 
> 
> 
> 
> 
> 
> Rob beat tme to this reply, so let me second it.
> 
> I'd be willing to bet that your 520 will let you add disks without
> bringing the system down.
> 
> Charles Wilt
> --
> iSeries Systems Administrator / Developer
> Mitsubishi Electric Automotive America
> ph: 513-573-4343
> fax: 513-398-1121
>  
> 
> > -----Original Message-----
> > From: midrange-l-bounces@xxxxxxxxxxxx 
> > [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
> > Sent: Tuesday, February 28, 2006 1:07 PM
> > To: Midrange Systems Technical Discussion
> > Subject: RE: Strange DASD Utilization Issue
> > 
> > Debbie,
> > 
> > Just yesterday I put in a disk drive without bringing the 
> > system down. 
> > It's really no big deal.  I've even removed and added cards. 
> > There are 
> > some options in STRSST to do this.
> > 
> > Rob Berendt
> > -- 
> > Group Dekko Services, LLC
> > Dept 01.073
> > PO Box 2000
> > Dock 108
> > 6928N 400E
> > Kendallville, IN 46755
> > http://www.dekko.com
> > 
> > 
> > 
> > 
> > 
> > "DebbieKelemen" <DebbieKelemen@xxxxxxxxxxx> 
> > Sent by: midrange-l-bounces+rob=dekko.com@xxxxxxxxxxxx
> > 02/28/2006 12:28 PM
> > Please respond to
> > Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
> > 
> > 
> > To
> > "'Midrange Systems Technical Discussion'" <midrange-l@xxxxxxxxxxxx>
> > cc
> > 
> > Fax to
> > 
> > Subject
> > RE: Strange DASD Utilization Issue
> > 
> > 
> > 
> > 
> > 
> > 
> > I guess I should have set the stage better with giving more 
> > background on
> > our system.  We just purchased it last year. 
> > 
> > We have an i5 model 520. With 351.6 g of usable DASD and 4g 
> > of memory.  We
> > only have about 100 users (if that).  We do have a website directly
> > accessing us 24X7.  So I can't take the machine down too 
> > often.  I have 12
> > disk drives currently & will be adding 4 more in a few weeks 
> > (when I can
> > schedule the down time). 
> > 
> > We do have some power users.  And the web developer does 
> have some SQL
> > queries that I need to review because he is doing queries over the 
> > database
> > on the physical files or in ways that would be faster if we made new
> > logicals for him to use.  I never realized that that would 
> eat up temp
> > space.
> > 
> > Deb
> > 
> > 
> > 
> > 
> > -----Original Message-----
> > From: midrange-l-bounces+debbiekelemen=hotmail.com@xxxxxxxxxxxx
> > 
> [mailto:midrange-l-bounces+debbiekelemen=hotmail.com@xxxxxxxxxxxx] On 
> > Behalf
> > Of Chris Bipes
> > Sent: Monday, February 27, 2006 4:17 PM
> > To: Midrange Systems Technical Discussion
> > Subject: RE: Strange DASD Utilization Issue
> > 
> > Stop people from querying your database on non keyed fields. 
> > Temporary
> > access path, temporary copies of partial data are the two 
> biggest uses
> > of temporary space.  You will see a max and a current 
> > temporary space in
> > wrksyssts.  How much DASD do you have?  Large % jumps 
> generally happen
> > on low space machines.  If you have something like 4x17GB 
> > drives raid 5,
> > that is around 50 GB usable and 5% is only 2.5GB.  Where as a larger
> > DASD pool such as our 637 GB usable, 5% = 31.8 GB not so 
> easy for temp
> > storage to use. 
> > 
> > 
> > Christopher Bipes
> > Information Services Director
> > CrossCheck, Inc.
> > 
> > -----Original Message-----
> > From: midrange-l-bounces@xxxxxxxxxxxx
> > [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DebbieKelemen
> > Sent: Monday, February 27, 2006 2:58 PM
> > To: 'Midrange Systems Technical Discussion'
> > Subject: Strange DASD Utilization Issue
> > 
> > I need some help trying to figure out a DASD utilization 
> issue that is
> > plaguing me.
> > 
> > After an IPL, my system is at a nice 38.64% utilization.  
> Within a day
> > it
> > has grown to 42.98%.  I can guarantee within a few weeks I 
> > will be up to
> > 50
> > or more percent and I will need to IPL to get my DASD down 
> for the mid
> > 60%
> > within a 6 week period or so.
> > 
> > When I run a GO DISKTASK, it shows that Temporary space is 5% of my
> > system.
> > That is what my system grew by.  How do I keep my temporary 
> > space under
> > control? 
> > 
> > -- 
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