topic Re: CP type "s" in the 2nd character. in ONTAP Discussions

CP type "s" in the 2nd character.

motohisa_nozaki — Wed, 04 Jun 2025 13:26:11 GMT

Hello,

I am not good at English. So, I apologise if you feel difficult to understand following.

I have VMware environment that includes NetApp FAS as NFS datastore.

Sometime this FAS not responding in CP ty #s, and occures APD in ESXi.

I read man page and understood that "CP ty s" is "Proccesing Special Files", but I cannot understand what is "Special Files".

Please let me know If anyone knows "what is Special Files".

(inode? metafile? or other?)

regards,

Re: CP type "s" in the 2nd character.

D_BEREZENKO — Thu, 09 Aug 2018 15:22:37 GMT

What ONTAP version & FAS system do you have?

Do you have 7-mode?

What protocol(s) are you using in your environment?

Re: CP type "s" in the 2nd character.

motohisa_nozaki — Thu, 09 Aug 2018 15:52:14 GMT

Hi, D_BEREZENKO

Thank you for reply.

I have FAS2240-2. DOT814P1 7-mode installed.

Protocols are NFS and iSCSI.

Re: CP type "s" in the 2nd character.

D_BEREZENKO — Thu, 09 Aug 2018 17:19:03 GMT

Examples of "special files" in ONTAP are:

Directories
Hard Links
LUNs

If you have # or : symbols fallowing with B in next CP, it might mean that you have high sequential throughput or high overwrite throughput, both cases indicate to a small number of drives which is not enough to handle the workload.

Also as far as I remember in 8.1.2 there was a bug BURT 393877 (Inefficient pre-fetching of metadata blocks delays WAFL consistency point) which might be indicated by CP ty :s but it should be resolved in 8.1.4P1, so double check on it.

Re: CP type "s" in the 2nd character.

motohisa_nozaki — Fri, 10 Aug 2018 00:12:06 GMT

Hi, D_BEREZENKO

Thank you for your assistance.

It was not include inode or metadata...

Your answer was very usefull.

and I'll check a BURT you suggested.

Thank you very much!

sincely yours.