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Re: Nways Database and NetView database

To: nv-l@lists.tivoli.com
Subject: Re: Nways Database and NetView database
From: lclark@us.ibm.com
Date: Fri, 15 Sep 2000 08:24:47 -0400

See comments below.


Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking

"Geoffrey Cheng/Markham/IBM" <gcheng@CA.IBM.COM>@tkg.com on 09/14/2000
01:33:38 PM

Please respond to IBM NetView Discussion <nv-l@tkg.com>

Sent by:  owner-nv-l@tkg.com

To:   IBM NetView Discussion <nv-l@tkg.com>
Subject:  [NV-L] Nways Database and NetView database


     I have several questions regarding Netview database and Nways Campus
Manager database(LAN, ATM).

     (1) Is there any relationship between these two sets of databases? If
I clear up the Nways objectStore database only, Will there be any impact on
NetView database?
>> Nways uses the Netview database, and adds fields and symbols, and sets
>> status in it, etc. It also stores other data in its Ostore database. It
>> populates the Ostore based on the contents of Netview's database. So
>> Netview controls the discovery and Nways works from that. If you clear
>> the Netview database, you should do the same for Nways.

     (2) If these two database system are independent of each other, after
I clear out the Nways database, but not NetView's, when will the database
repopulated with device data? restart of cmld?
>> Yes.

     (2a)Will there be an independent polling on Nways side? Or it will
read data from NetView database and then poll the devices for additional
>> Both. Netview does discovery and IP status polling. The various Nways
>> applications do additional snmp polling for device-specific things.
>> Under smitty cml, you have options to control that polling. Well, for
>> the atm app you can only control the frequency. For the 8250/60 Hub
>> Manager you can control whether it is regular or only done when the
>> Hub view is opened. And the JMAs have a whole 'nother thing. And they
>> all have the equivalent of a demandpoll. But all of this polling is
>> vendor and device specific, not an overlap with Netview polling

     (3) In NetView, when the database size is big and adding/deleting
happens quite often, we have tools to compat the database, is there any
in Nways to do similar job ?
>> Yes. Under smitty cml, maintain, there are options to clear the ostore
>> databases for the lan and atm components. Then they get repopulated.
>> I only do that when I think there is something funny going on, or after
>> a restore or major change in the Netview database.


Best Regards,

Geoffrey Cheng

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