In the SQL Server Books Online topic Using SQL Server Objects
, SQL Server object names are all listed as beginning with "SQL Server"; however, for SQL Server 2000 named instances the SQL Server object names actually show up in Performance Monitor as "MSSQL$InstanceName." If there is a SQL Server 7.0 instance or default SQL Server 2000 instance on the same computer as one or more SQL Server 2000 instances, the SQL Server 7.0 or default SQL Server 2000 instance counters show up as "SQL Server."
In this example, the SQL Server 2000 Instance Name is SQL1:
Books Online Counter Name Actual SQL Server 2000 Counter Name for named Instance
SQL Server: Access Methods MSSQL$SQL1:Access Methods
SQL Server: Backup Device MSSQL$SQL1:Backup Device
SQL Server: Buffer Manager MSSQL$SQL1:Buffer Manager
SQL Server: Cache Manager MSSQL$SQL1:Cache Manager
SQL Server: Databases MSSQL$SQL1:Databases
SQL Server: General Statistics MSSQL$SQL1:General Statistics
SQL Server: Latches MSSQL$SQL1:Latches
SQL Server: Locks MSSQL$SQL1:Locks
SQL Server: Memory Manager MSSQL$SQL1:Memory Manager
SQL Server: Replication Agents MSSQL$SQL1:Replication Agents
SQL Server: Replication Dist. MSSQL$SQL1:Replication Dist.
SQL Server: Replication Logreader MSSQL$SQL1:Replication Logreader
SQL Server: Replication Merge MSSQL$SQL1:Replication Merge
SQL Server: Replication Snapshot MSSQL$SQL1:Replication Snapshot
SQL Server: SQL Statistics MSSQL$SQL1:SQL Statistics
SQL Server: User Settable Object MSSQL$SQL1:User Settable Object
A new format was needed to accommodate named instances in SQL Server 2000.
Microsoft has confirmed this to be a problem in SQL Server 2000.
Only counters for those SQL Servers started prior to opening Performance Monitor are available.