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NMC questions
Hello there,
we have already installed NMC on one of our solaris 5.9. But we have performance issues there. NMC keeps freezing and it takes a long time to do anything in it. It was okay for now, cause we used nwadmin on our servers. But now we are upgrading to 7.5.3, which has no nwadmin and needs to get NMC working first.
We have thought about some reasons causing performance issues with NMC:
- there are too many backupservers monitored via this NMC (we have about 20, some of them are really huge -many clients, groups, actions), but I have read, that it doesnt matter how many servers are monitored (at least not at this amount of servers).
- server which NMC is running on is "slow" (what is the recommended configuration for a server running NMC?) - we have 25% of CPU usage when running only one NMC.
- server is overloaded (dont think this is the cause really)
Do anyone have any other ideas? or any ideas how to tune up the performance?
Thank you
Hello Kurtica
Components that determine the performance of NMC are:
1- TCP network connectivity to backup server: All communication between NMC and NW server is over TCP and such high-speed low-latency network connectivity is essential.2- Memory: database tasks in larger environments are memory intensive, make sure that NMC server is equipped with sufficient memory.
3- CPU: If NMC server is used by multiple users, make sure that it has sufficient CPU power to ensure that each user is given enough CPU time slices.
Thanks,
Ahmed Bahaa
Try installing and running the NetWorker Management Console (NMC) server on a different host (Windows for example) and gradually add in the 20 servers.
See if there is a performance issue, and how many servers did you add before the performance issue starts.
Note: NMC servers many functions. The primary function is to manage your NetWorker backup servers. Another function is gathering data from these servers and saving it in to the NMC database. When you define a NetWorker server in NMC, it asks you if you want to collect data (default=yes). With this enabled, it will constantly data mine from the backup servers. You can then use NMC to produce backup reports with this data.
Obviously, this has an impact on performance. If you are not interested in using this data warehouse feature, then try disabling it. Also document this change so that in future you will know why you cannot produce NMC reports.
jcmps821
11 Posts
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Posted October 1st, 2010 11:00
If your sole NMC is managing 20 NW servers with tons of NW clients ... I'd say pick up the phone and contact Support ...
sorry for the lack of a recommendation beyond that .