Extremely high iowait time & load
Posted: Wed Apr 19, 2017 3:33 pm
Hello,
We are seeing extremely high load times and iowait times, sometime over 50 load average. There doesn't seem to be a lot of disk activity related to the wait time (see attached). I'm having a really hard time pinning this issue down. Here is our zm setup:
ZM on a VM
16 vCPUs Physical CPUs on host are at 3GHz
32GB of RAM
26TB Disk Direct Attached SAS (RAID5)
CENTOS 7.2.1151 (core)
100 Monitors @ 2fps
I have a filter setup to remove events after 30 days.
I've tried several configuration under options related to zmaudit and how often to run the filter and nothing seems to bring down the load.
Network seems to be ok at max we are pulling about 12Mbps.
Any help would be appreciated. Thanks
We are seeing extremely high load times and iowait times, sometime over 50 load average. There doesn't seem to be a lot of disk activity related to the wait time (see attached). I'm having a really hard time pinning this issue down. Here is our zm setup:
ZM on a VM
16 vCPUs Physical CPUs on host are at 3GHz
32GB of RAM
26TB Disk Direct Attached SAS (RAID5)
CENTOS 7.2.1151 (core)
100 Monitors @ 2fps
I have a filter setup to remove events after 30 days.
I've tried several configuration under options related to zmaudit and how often to run the filter and nothing seems to bring down the load.
Network seems to be ok at max we are pulling about 12Mbps.
Any help would be appreciated. Thanks