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Disk Performance odd. Help interpret graph

mac_cnc

mac_cnc

2[H]4U
Joined
Oct 14, 2000
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So I have a host on my work network that I have been working with. We just dropped in a P2000 G3 into our location and I have 1 vm that seems to be giving me some odd disk speed issues. When I power down the machine it goes away so I know for sure it's that one. Its Windows server 2003. Any idea what could be causing it?

The machine has Solarwinds monitoring on it.

disk.jpg
 
No one huh? Did I not give enough info?

The SAN is Iscsi which I have multipathed to the Host.

The system has SQL 2005 on it for the Solarwinds software. Not sure if that helps.
 
Well, for one thing, you never said what the oddness is. Maybe it is obvious to you, not necessarily to readers...
 
Go look and see what that database is doing. That graph isn't unusual for an active database.
 
Is 30ms bad for this? I thought it should be lower.

I managed to track it down to a service that Solarwinds uses to record traps. Once turned off it levels off at like 3ms.
 
Wouldn't that disable much of the primary functionality of Solarwinds though? As a network monitor I think it would be difficult to get SNMP trap information if the service was disabled. If anything have whoever is in charge of the tool contact the vendor to see if there are performance benchmarks for the number of machines reporting to Solarwinds and the DB latency and see if you're in the right area.
 
mac_cnc said:
Is 30ms bad for this? I thought it should be lower.

I managed to track it down to a service that Solarwinds uses to record traps. Once turned off it levels off at like 3ms.
Click to expand...

It depends. Sometimes 30ms is a problem..other times it isn't. It all depends on the impact to the application. For a logging/monitoring DB it's probably just fine. For a highly transaction busy Oracle database I'd be worried over 20ms.
 
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