cDOT performance counters and preset files

[Dong_Chen]

I got some quries from customer about the cDOT performance monitor. So look for some help!

Here is a list of open topics:

• What is the format of preset file? Is it the same as 7-mode?
• Is “statistics preset import” the only way to import new preset file? In 7-mode, I can directly write the a preset file to the root file system.
  • By using “statistics preset import”, I need to establish an HTTP/FTP server somewhere at first.
  • Does it support HTTPS? Otherwise filers in DMZ will not able to get the preset file.
• Please suggest where I can find the following 7-mode counters in cDOT. (is there any docs list all the cDOT counters? or how can I easily find mapping counters between 7 and C?)
  • cifs_stats
    • offload_qlength
  • ifnet(physical port)
    • recv_packets
    • send_packets
    • recv_data
    • send_data
  • For NFSv4/NFSv4.1 stats:
    • Do nfsv4 counters tick with nfsv4.1 traffic?
    • Are “read_total” and “write_total” talking about IOPS?
  • There’s no way to specify preset file in API.

[Sahana]

Hi

• What is the format of preset file? Is it the same as 7-mode?

The file format is .XML https://library.netapp.com/ecmdocs/ECMLP2348025/html/statistics/preset/import.html

• Is “statistics preset import” the only way to import new preset file? In 7-mode, I can directly write the a preset file to the root file system.

You can use 

perf-preset-create API or statistics preset import

refer https://library.netapp.com/ecmdocs/ECMLP2348025/html/statistics/preset/toc.html 

•  
  • By using “statistics preset import”, I need to establish an HTTP/FTP server somewhere at first.

Yes

• Does it support HTTPS? Otherwise filers in DMZ will not able to get the preset file.

It supports ftp and http Refer https://library.netapp.com/ecmdocs/ECMLP2348025/html/statistics/preset/import.html

• Please suggest where I can find the following 7-mode counters in cDOT. (is there any docs list all the cDOT counters? or how can I easily find mapping counters between 7 and C?)
  • cifs_stats
    • offload_qlength
  • ifnet(physical port)
    • recv_packets
    • send_packets
    • recv_data
    • send_data

Counters can be found:

https://library.netapp.com/ecmdocs/ECMP1113669/html/html/GUID-04407796-688E-489D-901C-A6C9EAC2A7A2.html

• For NFSv4/NFSv4.1 stats:
  • Do nfsv4 counters tick with nfsv4.1 traffic?

use 

nfsv4_1

 for NFS V4.1 stats, refer 

https://library.netapp.com/ecmdocs/ECMP1136576/html/GUID-66BEFE69-F98F-4CBE-BE65-83641F2FD323.html

• Are “read_total” and “write_total” talking about IOPS?

Yes

• There’s no way to specify preset file in API.

You can use perf-preset-create API. refer 

https://library.netapp.com/ecmdocs/ECMLP2348025/html/statistics/preset/toc.html