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Low physical memory alert on 3 servers - erroneous ..?

fatherjack2fatherjack2 Posts: 311
edited January 28, 2009 9:00AM in SQL Monitor Previous Versions

I have 3 SQL 2005 Server Instances that are monitored by SQL Response. Server Instances A + B are on one physical box and server instance C is on its own box and hosts the SQL Response repository too.

All three instances reported a Low Physical memory alert at the same time (within 5s) this morning at the time that I changed the SQL Response Alert Repository Service login account (on installation I had used my credentials and I need to change my pwd so moved the service to another - more appropriate - domain account.

I dont think that we would have got close to using all the RAM on these servers, servers A + B share 20GB and server C has 8GB.

Is this something that needs investigating or a known outcome when the service account is changed?



Senior DBA
Careers South West Ltd


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    Hi FatherJack,

    What does the graph for the performance snapshot in the alert details show?

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    the pie chart that shows SQL Server 18.4 GB, other processes 1.4GB and other 192MB on servers A + B (they are set to have a maximum of 9GB each, thus leaving 2GB for OS etc) at 10:14:24

    and for server C ...
    at 10:14:19 SQL Server 6.3GB, other processes 1.5GB, free 235.1MB



    Senior DBA
    Careers South West Ltd
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    The system processes section should provide a breakdown of windows process memory usage. Does anything there look unusual?
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    nothing really stands out;

    I would sort it by the mem usage or VM size columns if I could so as to see the worst offenders ... feature hint ;)

    I would send it to you if I could select from that pane and paste into Excel ... feature hint ;)

    I dont know what would be normal for any of the 70+ processes on the servers though .

    Servers A and B host OLTP and OLAP activities for our main company system (maybe max 200 concurrent users via 2 IIS servers),

    Server C supports all other database services for the company - 45 databases, max 10-20 concurrent users in maybe 3 or 4 of these systems - HR, Accounts, Intranet, etc., )

    certainly both server (h/w) are doing very different things and are (at this time of day) totally unconnected. Over night there are data transfer scripts that run.

    Senior DBA
    Careers South West Ltd
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