High Read Latency Spike Causes Outage to underlying Virtual Infrastructure.
a. These variables are set at the loader prompt (Note: this settings are platform dependent).
b. LOADER-A> setenv raid_vol_readio_res_count 6230
c. LOADER-A> setenv raid_mirror_readio_res_count 7702
d. LOADER-A> setenv wafl_pw_limit_percent 12
The 'raid_vol_readio_res_count' and 'raid_mirror_readio_res_count' increase the resource count available for RAID. By default the partial write limit is 50% of the resources count.
Setting 'wafl_pw_limit_percent ' reduces this value to mitigate a partial write workload from dominating the system.
This is only a partial fix and may not completely eliminate the issue seen. (Random Read Spike). It is for this reason an upgrade to DOT 8.1.3 upon release is still the long term recommendation".
VM Client Disconnecting Issue:
a. http://kb.vmware.com/kb/51306
b. https://kb.netapp.com/support/index?page=content&id=2010823
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