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<div>Greetings all</div>
<div> </div>
<div>I have an interesting question/problem, and I am hoping somebody can help me. (I think this might be one for Henrik though)</div>
<div> </div>
<div>We have a Windoze database cluster, with bbwin on each, which works OK.</div>
<div>Those who know the Microsoft cluster software, will know that the "active" disks could be resident on any server.</div>
<div>As a result, you may have a disk appear on one server, then "disappear", and suddenly "reappear" on another server in the cluster.</div>
<div>This makes consistent monitoring and trending difficult.</div>
<div> </div>
<div>We decided to try and write a test which created a consistent view of the cluster.</div>
<div>To do this, we created a script which runs on all the members of the cluster, but only the "active" member would send results, pretending to be a server called $CLUSTER_NAME</div>
<div> </div>
<div>To make this happen, we decided to send a new data file to the hobbit server, as if it was a new client altogether.</div>
<div>(Data file like the one you see when you click on "Client Data" link in the disk view)</div>
<div>Of course, there is no physical server with this name, it's just a "place-holder" and an entry in bb-hosts.</div>
<div> </div>
<div>We ended up sending just the basics - at least to start with. It looked like this.</div>
<div><font face="Courier New, monospace">client <font face="Courier New, monospace">DBS_CLUSTER</font>.bbwin win32<br>
[date]<br>
19/01/2009 2:55:51 PM<br>
[disk]<br>
Filesystem 1K-blocks Used Avail Capacity Mounted Summary(Total\Avail)<br>
I 314568732 23992884 290575848 7.% /FIXED/I 300.00gb\277.11gb<br>
J 26210012 6593428 19616584 25% /FIXED/J 25.00gb\18.71gb</font></div>
<div><font face="Courier New, monospace"> </font></div>
<div>Then something really strange happened. (see attached image)</div>
<div>It graphed the 2 drives OK, but these 2 red entries appeared. They are not related to any disk, and we have no idea where they are coming from.</div>
<div> </div>
<div>Any ideas or suggestions welcome</div>
<div> </div>
<div>Regards</div>
<div> Vernon</div>
<div> </div>
<div> </div>
<div><img src="cid:b626b161-2765-4333-9194-568164bf7955"> </div>
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