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  1.  Home
  2. DOMINO400
  3. January 2007

Re: Domino Utilities and Server Performance Issues

Are all the disks the same capacity?

It almosts sounds like someone may have ran a STRASPBAL *USAGE. This could 
probably skew the numbers if the 6 drives in question are of a smaller 
capacity than the others. They may have relatively the same amount of data 
in GB but if the drives are smaller then they would have a greater % of 
data.

You will be fine to run a STRASPBAL *CAPACITY during the day. 

My production model 820 was installed around 2 years ago when I ran a 
STRASPBAL and all the drives are either 88.0 or 88.1 % used. 

OK, OK, stop the flaming - I know 88% is not good. We're installing some 
new 570s with 2.6x the DASD. I have one of them up in the cluster now with 
all of the data being clustered and we're only using 31%. When we get the 
UPS for the other 570 I'll move the production 820 over to it via LTO3.

Man, this 570 smokes and it's just going to be our failover box with 1 
proc active. The production will have 2!!

I'm happy.... :)

Chris Whisonant
Senior Mid-Range Systems Administrator
Comporium
803-326-7270
IBM Certified Specialist -- eServer i5 iSeries Domino Technical Solutions 
V5R3
IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
IBM Certified System Administrator - Lotus Notes and Domino 7
IBM Certified Associate Developer - Lotus Notes and Domino 6/6.5

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on 
01/25/2007 02:04:54 PM:


Chris,

Thanks!  This is exactly what we are doing tonight.  And although we 

have

found a potential fix, we are still scratching our heads as to what 

caused

this to happen in the first place.  Basically, is there anything that
anyone is aware of that would cause disk performance to significantly
change is such a manner that prior to this weekend, all 22 disk were
between 3 and 9% utilized and after the weekend, 6 disk are utilized at
50-70% while the other 16 remained at the normal level?

Thanks,

Jose del Risco
Corporate Domino Administrator
Oshkosh Truck Corporation

(920) 235.9151  x 2741



 
             Chris Whisonant  
             <Chris.Whisonant@  
             comporium.com> To 
             Sent by:                  Lotus Domino on the iSeries / 

AS400 

             domino400-bounces         <domino400@xxxxxxxxxxxx>  
             +jdelrisco=oshtru cc 
             ck.com@xxxxxxxxxx  
             om Subject 
                                       Re: Domino Utilities and Server  
                                       Performance Issues  
             01/25/2007 12:58  
             PM  
 
 
             Please respond to  
              Lotus Domino on  
               the iSeries /  
                   AS400  
             <domino400@midran  
                  ge.com>  
 
 




Jose,

Well that makes sense! STRASPBAL should help out your performance
significantly!! :)

Chris Whisonant
Senior Mid-Range Systems Administrator
Comporium
803-326-7270
IBM Certified Specialist -- eServer i5 iSeries Domino Technical 

Solutions

V5R3
IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
IBM Certified System Administrator - Lotus Notes and Domino 7
IBM Certified Associate Developer - Lotus Notes and Domino 6/6.5

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on
01/25/2007 01:53:55 PM:


Chris,

I may have stated the information incorrectly. Of the 22 drives, 6
are being utilized at 50-70% while the other 16 are averaging 5%.
These disk store nothing but Domino and the entire box runs nothing
but Domino.
-- Sent from my Blackberry Wireless Device --
Jose L. del Risco
Oshkosh Truck Corporation
Corporate Domino Administrator
(920) 420-5646
Jdelrisco@xxxxxxxxxxxx


----- Original Message -----
From: Chris Whisonant [Chris.Whisonant@xxxxxxxxxxxxx]
Sent: 01/25/2007 01:08 PM
To: Lotus Domino on the iSeries / AS400 <domino400@xxxxxxxxxxxx>
Subject: Re: Domino Utilities and Server Performance Issues



Correct me if I'm wrong, but i5/OS doesn't create data like that. I

would

be REALLY curious to see how this person determined that ALL of the

Domino

data was only on 1/4 of the disks. Are those disks separated in a user
ASP? That could be possible, but you would have had to poing the
/LOTUS/DATA directory to that user ASP...

Chris Whisonant
Senior Mid-Range Systems Administrator
Comporium
803-326-7270
IBM Certified Specialist -- eServer i5 iSeries Domino Technical

Solutions

V5R3
IBM eServer Certified Systems Expert - iSeries Technical Solutions 

V5R2

IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
IBM Certified System Administrator - Lotus Notes and Domino 7
IBM Certified Associate Developer - Lotus Notes and Domino 6/6.5

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on
01/25/2007 08:24:16 AM:



How much cache is on the controller that controls the drives on the

iSeries

box that hosts Domino?  Domino seems to really perform better with a

hefty

amount of disk controller cache.

Of course that doesn't explain why things were fine, then got bad. 

I'm



not

sure what was the event that concentrated your Domino specific stuff

on

6

of the 22 drives... i'd have the guy who found that situation keep

digging

further into it!  He should also be able to talk with IBM support 

for

some

possible reasons why...


             JDelRisco@oshtruc
             k.com
             Sent by: To
             domino400-bounces         domino400@xxxxxxxxxxxx
             +chadb=wheeling-n cc
             isshin.com@midran
             ge.com Subject
                                       Domino Utilities and Server
                                       Performance Issues
             01/24/2007 06:23
             PM


             Please respond to
              Lotus Domino on
               the iSeries /
                   AS400
             <domino400@midran
                  ge.com>







Hello Everyone,

I have been experiencing Lotus Notes performance issues since Monday
morning.  At first we thought the problem to be a run away process (

Router

task on a server was running at 80-90% for about 35min and it wasn't

doing

anything ).  Since then ( Monday at 10:35am ), CPU for the entire 

LPAR



has

been averaging 30% and peaking at 65%.  Still, as of the time of 

this

email, we are seeing intermittent performance issues. And by that I

mean,

everything seems to run normally then for some seemingly random

reason,

it

take upwards of 4 minutes just to open an email that does not have 

an

attachment or switch to a different folder view, etc.  We sniffed 

the

network and found no network issues occurring during these moments

that

Lotus Notes runs slow.  These moments tend to last about 5-10 

minutes

and

all goes back to normal.  The performance problems to not seem to 

tie

into

any server task or event taking place.

After eliminating CPU we checked Memory.  The iSeries guru at our
organization informed me that there didn't appear to be any memory

issues

but did notice that 6 of our disks ( of 22 ) were being hit hard. 

When



he

did some further digging he noticed that ALL of the data for all 10

server

instances on our LPAR were all on 6 of the 22 disks that we have. 

This



was

not the case last week.  It would seem that the performance issues

were

related to disk and he is performing a task to evenly distribute the

data

among the 22 disks by usage.  Now you are all probably wondering, 

"How



did

all the data end up on just 6 disks when it was spread across 22 

last

week?"......  That, my friends, is the $100,000 question.  If anyone

has

any ideas I would love to hear them.  Some background info.

Saturday night we applied PTF's to the LPAR.
We also ran Fixup on 3 of our server, and Updall -r  on 2 of the 3

servers

that Fixup was run on.

That is the extent of the changes that occurred this weekend.  I 

have

a

directors meeting in the morning at which they will be asking me why

Lotus

Notes is running slow.  I believe I have determined what was the

problem

but not the root cause.  If anyone can send me idea before 9am

tomorrow.

Feel free to ask me any questions, I will provide as much detail as 

I

can.


Thanks,

Jose del Risco
Corporate Domino Administrator
Oshkosh Truck Corporation

(920) 235.9151  x 2741


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Although this e-mail and any attachments are believed to be free of
any virus or other defect which might affect any computer system, it
is the responsibility of the recipient to check that it is virus-
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loss, injury, damage, cost or expense arising in any way from
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The information contained in this electronic mail message is
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NOTICE: This message contains information which may be confidential. If
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prohibited. If you have received this communication in error, please
notify us immediately by return e-mail, telephone or facsimile. Thank 

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Although this e-mail and any attachments are believed to be free of 
any virus or other defect which might affect any computer system, it
is the responsibility of the recipient to check that it is virus-
free and the sender accepts no responsibility or liability for any 
loss, injury, damage, cost or expense arising in any way from 
receipt or use thereof by the recipient.

The information contained in this electronic mail message is 
confidential information and intended only for the use of the 
individual or entity named above, and may be privileged.  If the 
reader of this message is not the intended recipient, you are hereby
notified that any dissemination, distribution or copying of this 
communication is strictly prohibited.  If you have received this 
transmission in error, please  contact the sender immediately, 
delete this material from your computer and destroy all related 
paper media.  Please note that the documents transmitted are not 
intended to be binding until a hard copy has been manually signed by
all parties.
Thank you.
_______________________________________________
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