RE: Strange DASD Utilization Issue -- MIDRANGE-L

Debbie,

Take a look here:
http://publib.boulder.ibm.com/infocenter/eserver/v1r3s/topic/iphal/insta
lldiskos400poweron.htm

Or http://tinyurl.com/lbxhv

HTH,

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 DebbieKelemen
> Sent: Tuesday, February 28, 2006 1:47 PM
> To: 'Midrange Systems Technical Discussion'
> Subject: RE: Strange DASD Utilization Issue
> 
> Oh....I guess I need to get this figured out then.  I thought 
> I needed to
> schedule a evening around this & schedule a mini-outage for it.
> 
> Maybe someone can help me out here?
> 
> Deb
> 
> 
> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
> Sent: Tuesday, February 28, 2006 11:07 AM
> 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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