IIS 5 & IIS 6
IIS 6 Web Farm against UNC Path
Last post Dec 23, 2008 01:17 AM by Andrew Zhu - MSFT
Dec 16, 2008 10:16 PM|abshaaw|LINK
We have 2 different NLB web farms that use a single 2003 File cluster for file storage. The initial farm has been running for a few years with replacement front ends in place with now problems. The second new farm has about 100 sites on it with each site
having easily 1K-2K asp files per site. We are running into issues where this new NLB farm will run for awhile and then appears to lose all network access for a few minutes. I'm not seeing any errors as far as maxcmds type of issues at all. Also in monitoring
the actual file cluster there does not seem to be any issues there.
This new NLB farm went into place this past weekend and replaced a single server that had all content running and located on it. Also of note both farms are running in 2003 Web virtual servers running on HyperV on the same set of physical servers.
Dec 17, 2008 07:17 AM|Rovastar|LINK
What is errors are being logged in the event log?
Anything like these:
How many TCPs ports are open when you get these errors?
Check also your firewall/routing logs at these times for any unusual activity.
Dec 17, 2008 08:26 AM|abshaaw|LINK
I've read both of those already. The only errors that we see in event logs are
A process serving application pool 'xxx' failed to respond to a ping. The process id was 'xxx'.
These are obviously on the web servers and the file cluster does not generate any errors.
And then it appears the process shutsdown and restarts itself. Also during the time it is happening you cannot use explorer to connect to any network resources either. Whether it is the file cluster or other servers on the network.
I've though about the number of open ports and have increased that overnight but I don't think we would have anywhere near that many open ports but I guess it is possible.
Oh and the firewall side of things seems to be ok as well. Like I said this was a simple move from a single server to a load balance pool with network storage.
Dec 23, 2008 01:17 AM|Andrew Zhu - MSFT|LINK
We are running into issues where this new NLB farm will run for awhile and then appears to lose all network access for a few minutes
Caused by NLB configuration? network issue? but I do not think it is due to IIS.
I will suggest opening a case in microsoft support center.