Hi AL, Hi Muneer
I'm a little late to the forum, I have been using HNAS since the
BlueArc days; but, I just discovered this interesting forum
Muneer I currently have non-zero cifs-dc-errors error counts (see below).
However, I currently have no sluggishness / performance issues.
These error count numbers may just be normal noise in a large environment.
Note: 187 bad password events in 2 hours shouldn't cause sluggishness
What is ( or was ) the nature of your performance issue.
- basic sluggishness ( example: you run ls / dir from a CIFS/NFS client and it takes
several seconds before you get a response )
- slower than normal throughput ( you normally see 200MB/s writes; but, now you
see 10 MB/s )
Over the years I have had occasional performance issues, 99.9 % fell into
one of these two (non-mysterious ) general categories
- NAS getting overloaded by users ( I have a lot of users )
The most basic way to detect an overload is to look at this on the SMU:
Status & Monitoring > Performance Graphs > Running Network Receive Fibers
If the numbers are consistently above ~50, you are getting slightly oveloaded,
If the numbers are "flat-topped / clipped at 400 , you are getting max overloaded.
After determining : YES, my HNAS is overloaded, pin-pointing the culprit is
somewhat of an art. ( I find the CLI connection and file access count tools to
be a great help here )
- Bad optic (LAN or SAN ). Check errors from HNAS and LAN / SAN switch perspective
If you have already solved your problem, let the forum know the solution.
Andy R.