Hi!
Running a FAS3270 Active-Active configuration providing NAS service via vFilers to multiple customers.
At the moment only CIFS is used, no NFS customers in this environment.
Some of our customers experience slow performance, some don´t.
I know this has been discussed several times, but this seems a little different.
If we test regular file copy we get very good result.
10-11 MB/s (90-95 Mbps) which is what the customers pays for.
But here´s the tricky part.
When they are trying to list files and folders in Explorer, the files won´t show all at the same time but it can take several seconds for all files to list.
Also saving a regular PPTX file (3 pages 1285kb) it takes several seconds for the folders to list when pressing 'Save as', then several more seconds to save it (the save bar comes up and shows a slow saving progress).
Also, if they create a folder inside a current share it takes a long time for the folder to show up.
Home folder is synced for offline use.
After restart of PC the problems seem non-existent, after a while the problem appears again.
So, could this be SMB issue?
Should we disable offline files on the folder ("cifs shares -change <sharename> -no_caching")?
Could disabling 8.3 filename support for the clients be helpful?
Could NOT using cifs homedir make for slow connection..I mean,does the SMB list metadata for the complete searchpath?
(Exampel, user trying to save file to \\filer\users$\office1\group2\user\Documents\folder, does it list from users$ or from 'users' folder?)
Do you guys have any other experience where the filecopy speed is fine, but the user experience is slow??