Disk utilization threshold in iseries

Hello Gurus,
I have a SAP R/3 4.6C system over iseries V5R4M0. our disk utilization is near to 80% Im afraid that this increase utilization affect my system perfomance.
Exists one threshold for disk utilization?
My disk arm is near to 20% an now we dont have any performance problems.
Regards,
Ernesto Castro.

Hello Ernesto,
in very small systems you had this in the past. Nowadays, this is typically no issue any more. You can run diks up to 90 or even 95% - you just should keep in mind, that this becomes risky as it might happen, that you reach 100% because of temp-storage and then the system suts down ...
=> You can run with that without issues, but should have a look for increasing the disk when it grows further ...
Regards
Volker Gueldenpfennig, consolut international ag
http://www.consolut.net - http://www.4soi.de - http://www.easymarketplace.de

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Hi Folks,
I understand that Oracle doesn't support their products 100% on non Oracle VMs, but I thought I might take a stab at it.
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Last Updated          Jun 4, 2009 3:48:48 PM
Acknowledged          No
Acknowledged By     n/a
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It may be related to Bug 8677212: BACKUP INFORMATION FOR SOME DATABASES SHOWS INCORRECTLY
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If this question is answered, please mark appropriate posts as correct/helpful and the thread as closed. Thanks

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Hi,
I have windows 2008 R2 64 bit OS and database version is 11.1.0.7.0 64 bit ...
I got the below error via EM.
Target Name=ORSDEV.xxxdomain.com
Target Type=Host
Host=ORSDEV.xxxdomain.com
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Metric Value=99.61
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Timestamp=Mar 21, 2012 7:41:58 PM SGT
Severity=Critical
Message=Disk Utilization for 0 C: D: E: is 99.61%, crossed warning (80) or critical (95) threshold.
Notification Rule Name=Host Availability and Critical States
Notification Rule Owner=SYSMAN
Notification Count=1
1.Can any one tell how to trace this warning and where to check for this alert ?
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3.How to identify the problem and resolve the issue in this case ?
Thanks & Regards,
Vikash (Junior DBA)

Hi Vikash,
This "Disk Utilization" metric actually points to hos busy is the disk device (in percentage) and not a percentage of disk capacity. As a matter of fact, in the 11.1. Database Control, it has been renamed to "Disk Device Busy(%)".
Regarding of the meaning of a disk busy, it is the percentage of time the physical disk is active. And it may no be a problem, as you can see at http://sunsite.uakom.sk/sunworldonline/swol-08-1999/swol-08-perf.html : "Complex systems can be 100 percent busy, but still have a lot of spare capacity".
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Hope this helps.
Thanks,
Cris

Can a disk utilization be more than 100% as shown from alert notification?

Hello,
I received an alert notification from the GRID. The percentage is 670.94%? What does this mean? Is it possible to go over 100%?
Thank you.
Severity=Critical
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Notification Rule Name=Host Availability and Critical States
Notification Rule Owner=SYSMAN
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Known Issue:
Disk Utilization/Disk Device Busy Metrics Displaying Values Above 100% on Windows, Generating Critical Alerts
https://metalink2.oracle.com/metalink/plsql/ml2_documents.showDocument?p_database_id=NOT&p_id=303788.1
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Windows 8.1 running extremely slow with high disk utilization

My recently purchased Toshiba laptop with Windows 8.1 with 16 GB and I7 processor takes 3 minutes to start new programs. Running programs like Word, PowerPoint, Excel, PDF reader,etc stop in their track with every few minutes and show a circling
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I ran McKAfee as well as Kaspersky to see if this was a virus/Trojan issue. Both came up with nothing.
At this point the laptop (though spanking new) is completely USELESS and I have no hopes of using it !!!!!
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Try these steps.
Open task manager
Click on processes tab. You can see all the apps and processes that are consuming memory.
Click on top of column showing the memory. This will arrange them in ascending or descending order of how much memory is consumed.
Find the ones which is consuming maximum memory
Uninstall if you don’t need the program or app. Re-configure or re-install the software or app if it is an important one.
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Disk Utilization false alarms from EM dbconsole

Hi,
I have a 10.2.0.1 instance on Windows XP. EM frequently reports disk problems that don't exist. Example below. The disk is no where near 100% so I don't know where EM is getting this. Has anyone else had this problem? Is this a bug?
ex.
Name=op1t1tsr
Type=Host
Host=op1t1tsr
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High disk utilization every 24 hours

Hi all,
While troubleshooting an user's complain about slow access to his mailbox on a Windows 2012/Exchange 2013 environment, I came across this interesting behavior:
Disk utilization on the server will increase from 100KBps to 3000KBps (on average) and stay high for a good 10 hours or so. Then disk activity will go down for exactly 24 hours from the time it was up and increase again for another cycle.
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Good Call. I just spent the last few hours going over 550,000 events.
I reviewed the application log for a 24 hour period and here is what I noticed:
During the high disk queue period there are lots of entries for MsExchangeMailboxAssistants. For each of the 15 mailbox databases.
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TopN Words
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Service MSExchangeMailboxAssistants. SharePoint Signal Store Assistant for database *** is entering a work cycle. There are *** mailboxes on this
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Service MSExchangeMailboxAssistants. Search Index Repair Time Based Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. People-centric triage for database *** is entering a work cycle. There are *** mailboxes on this database.
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Service MSExchangeMailboxAssistants. Managed Folder Mailbox Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Mailbox Processor Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
Service MSExchangeMailboxAssistants. Mailbox Association Replication Assistant for database *** is entering a work cycle. There are *** mailboxes
on this database.
Service MSExchangeMailboxAssistants. Calendar Repair Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
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Service MSExchangeMailboxAssistants. Store Maintenance Assistant for database *** is entering a work cycle. There are *** mailboxes on this database.
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Thanks!!
Well, its all workload based, so I don't think you can readily adjust that.
I'm more inclined to look at the specs of the mailbox servers. Are they up to the task and have they been vetted with the Mailbox Calculator?
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Investigating disk utilization issue with performance monitor

Hello
im using windows 2008r2 server, lately the server became very slow.
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Guy

Hi,
Thanks for your post.
Please refer to this article about hunting down hard disk resource hogs
http://www.techrepublic.com/article/how-to-hunt-down-hard-disk-resource-hogs/
Regards.
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

How does GC calculate the Disk Utilization metric.

Hi,
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See this post and response
Re: Data Guard Bug, which patch to fix?

Solaris 8 Patch Cluster 200801 installation / disk utilization spikes

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EM Alert: Critical: server - Disk Utilization for 1 D: is 99.8

hello!
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Zeitstempel=12.04.2010 12:29 Uhr CEST
Dringlichkeit=Kritisch
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Regards
Rajesh

Top 10 Disk Utilization Report

Hello,
Could some one help me how to Pull Top 10 Disk Utilization Reports (Monthly) from SCOM 2012.
I have checked different forums but no luck.

Hi,
This is a related blog for your
reference.
Setup a Disk Report in SCOM 2012
http://scom-2012.blogspot.com/2012/07/setup-disk-report-in-scom-2012-part-2.html
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About "disk utilization" and "cpu utlization"

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You might want to read about the kstat interfaces in Solaris . You can get the required statistics using kstat() calls.
Thanks,
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EM Alert - Disk Utilization for 1 E: is 96.24%

Hi,
I'm running Oracle 10.1.0.5 on Windows Server 2003.
I've gotten about 6 alerts from the enterprise manager database console which say:
Name=scwweo01.mydomain.com
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Thanks

This is a HOST metric.(Type = Host)
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Disk utilization threshold in iseries

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