IO Utilization Reach 100%

jr-phDBA

Hi,

I usually see this warning in our Oracle Enterprise Manager Ops Center. Sadly, no one is familiar to acknowledge the said warning. Can I ask your guidance to look into it?

How can I determine if our solaris server is utilizing 100% IO?

Thank you

Klausm-Oracle

Hi,

OPScenter is using iostat to get status of system and generate an incident when the threshold is reached.

To verify which command output these is OPScenter is using enable the following filter on Asset

and monitor cacao.0 for iostat output, or use dtrace script execsnoop to verify which commands

used by Opscenter to

# cacaoadm set-filter -i scn-agent com.sun.hss.domain.internal.sh=ALL

# tail -f /var/cacao/instances/scn-agent/logs/cacao.0

For disable set filter to "null"

# cacaoadm set-filter -i scn-agent com.sun.hss.domain.internal.sh=null

If more help is needed open an MOS SR.

Regards
KlausM

jr-phDBA

Hi Klausm,

Thank you for the response. What will happen if the incident was not resolved or acknowledged from Ops Center level?

I've checked iostat on the reported server, and it seems all fine.

[email protected]:~# zpool list

NAME       SIZE  ALLOC   FREE  CAP  DEDUP  HEALTH  ALTROOT

dbbackup   348G   158G   190G  45%  1.00x  ONLINE  -

ncho      2.13T   653G  1.50T  29%  1.00x  ONLINE  /

rpool      556G   211G   345G  37%  1.00x  ONLINE  -

[email protected]:~# zpool iostat

               capacity     operations    bandwidth

pool        alloc   free   read  write   read  write

----------  -----  -----  -----  -----  -----  -----

dbbackup     158G   190G      0      0   212K   222K

ncho         653G  1.50T    178    396  27.6M  4.19M

rpool        211G   345G     15     44   581K   262K

----------  -----  -----  -----  -----  -----  -----

Thanks!!

Klausm-Oracle

Hi,

check the monitoring profile for iostat it takes such over an longer period and

report Incident than.

Rule Type: Threshold

Monitored Attribute:      DiskUsageSet.name=*.busyPercentage

Monitoring Rule Name: Disk IO Utilization Percentage

Generate alert after: 90 min

If i'm correct, or is these an diff alert you get ?

KlausM.