I am seeing CPU activity 75% - 90% on average, using Harvester I can see that the node aggr0 is unusually busy. Autosupport reports this
bug (see url below) is present, which I suspect maybe the cause of the high CPU and aggr0 / root volume high activity.
https://mysupport.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=1061496
However I am not sure how to fix it ? Its my understanding access to the systemshell is limited to support ?
so how can I get access to the file /var/etc/periodic.conf.local to carry out the work around?
Problem node:
hncl1::*> node run -node hncl1-01 -command sysstat -d
CPU NFS CIFS HTTP Net kB/s HDD kB/s SSD kB/s Tape kB/s Cache
in out read write read write read write age
89% 15055 212 0 57821 20892 666163 21 2496 0 0 0 17s
92% 15433 232 0 128528 17175 715690 1153 2505 0 0 0 17s
86% 15850 520 0 49546 30543 546324 16 2647 0 0 0 28s
82% 16405 254 0 21778 38242 462387 5 1889 0 0 0 14s
89% 15776 232 0 82837 14417 700850 16 2069 0 0 0 14s
89% 15344 234 0 45265 12588 661101 153785 6578 10992 0 0 14s
87% 13749 533 0 20167 13852 650736 132215 1648 5481 0 0 14s
Good Node as example:
hncl1::*> node run -node hncl1-02 -command sysstat -d
CPU NFS CIFS HTTP Net kB/s HDD kB/s SSD kB/s Tape kB/s Cache
in out read write read write read write age
35% 2540 3 0 13430 14434 130278 16 3182 0 0 0 22s
37% 3007 1 0 15732 18484 43973 0 4699 0 0 0 24s
32% 3123 9 0 13962 14882 16851 21 4424 0 0 0 24s
31% 3213 2 0 13745 14351 12757 0 4600 0 0 0 24s
31% 2933 6 0 13607 14751 15683 16 4115 0 0 0 19s
32% 2839 1 0 27327 15809 27155 5 3539 0 0 0 19s
39% 3673 3 0 19517 17364 39400 65240 10589 14541 0 0 23s
35% 3361 5 0 16045 19323 17016 6499 4811 909 0 0 23s
37% 2846 3 0 20705 19875 19470 21 5300 0 0 0 23s
Having the HIGH CPU also means I cannot perform a NDU to get to a higher level where the bug is fixed.
Once I can get my CPU under control I get performance the NDU.
I hope someone can please provide some guidance.