Solved

Server 2008 R2 File and Print Server Intermittent slow access - requires reboot

Posted on 2014-01-10
4
1,724 Views
Last Modified: 2014-01-21
Hi,

I am experiencing a strange issue where randomly our file and print server becomes slow to browse over the network and stops accepting print jobs.

About the server:
Windows Server 2008 R2 hosted on VMware ESXi 5.0
8 vCPU (2 vSocket)
8GB RAM

When all is working well we have roughly 50 users connecting to files and printers on this machine from Windows 7 professional. CPU is less than 10% and RAM usage 16% on average.

Randomly the file server will become instantly slow to browse files over the network, no gradual process and printing will fail - no jobs accepted, nothing shows in print queue on the server itself.

Logging into remote desktop or esxi console resources are not elevated, CPU is between 6 and 10% with RAM remaining steady at about 17 - 18%

Resource monitor show low disk activity and almost no network activity. Browsing the files locally shows no issue and file transfers from one vDisk to another show no performance loss - strictly impacts SMB traffic only.

Browsing the event logs provides no information as to what could be failing.

If we reboot the server it comes up right away and performance is normal.
All backups are performed exact the same every day, virus scan runs at the same time every night. Issue is completely random, the last 4 failures occurred and different intervals.

Failure
Today
Previous 1: 10 days ago
Previous 2: 4 days prior to that
Previous 3: 26 days prior to that

Steps attempted:
- Turned off all TCP offloading
- Removed 3 file shares that referenced non-existent locations
- Attempts to restart the "Server" service during failure do not succeed - service gets hung at stopping
0
Comment
Question by:HFComm
  • 2
  • 2
4 Comments
 
LVL 3

Accepted Solution

by:
WiReDWolf earned 500 total points
Comment Utility
Are you using "Previous Version" to snapshot your shares?  If you are that's probably where your issue is.  

Usually it's more gradual for the resource leak but it could happen quickly if the service is having issues creating the snapshot.  

In my experience it's completely random when the server starts experiencing an issue with Previous Version or the VSS Service.

Use the Sysinternals Process Monitor to track what's happening.
http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
0
 

Author Comment

by:HFComm
Comment Utility
WiredWolf -

Thank you for the reply, I have confirmed we do not have shadow copies/previous versions enabled on our shared drives.

Can you provide some times on how I can effectively troubleshoot this issue with Process Monitor since it is so random?

Thanks,
0
 
LVL 3

Expert Comment

by:WiReDWolf
Comment Utility
Well you know the schedule of the snapshots.  Run the Process Monitor and keep track of what they're doing or try disabling the snapshots for a test period to see if the problem is related for sure.

Other high disk I/O could be from antivirus scans.  It could even be from an AV agent on a workstation that's set to scan mapped drives.  I would be looking for that as well.
0
 

Author Comment

by:HFComm
Comment Utility
So far the problem has not returned again - previous version have always been disabled on the file server. It may still be a VSS issue, but will have to watch it over time now with procmon.

Thanks
0

Featured Post

Threat Intelligence Starter Resources

Integrating threat intelligence can be challenging, and not all companies are ready. These resources can help you build awareness and prepare for defense.

Join & Write a Comment

New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
If you get continual lockouts after changing your Active Directory password, there are several possible reasons.  Two of the most common are using other devices to access your email and stored passwords in the credential manager of windows.
This tutorial will walk an individual through the steps necessary to install and configure the Windows Server Backup Utility. Directly connect an external storage device such as a USB drive, or CD\DVD burner: If the device is a USB drive, ensure i…
This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012. Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…

744 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now