Friday, April 07, 2006

Exchange Performance Troubleshooting Analyzer (ExPTA) 1.1 has shipped

This release of ExPTA includes the following:


1.    Perfmon data collection:  Collect performance data to log file or analyze previously collected logs.  ExPTA can collect for durations between 5 minutes to 8 hours. Collection works remotely. Data is analyzed in 20 minute time ranges, and results are grouped by the time in which the problem occurred.  You can analyze logs previously collected by ExPTA or via perfmon.  ExPTA will expect that the performance counters listed below are included in any log that is analyzed.


2.    Queue thresholds: SMTP Server\Categorizer Queue Length, Epoxy(IMAP)\Queue length, EPOXY(POP3)\Queue length, LDAP times, MSExchangeIS Public\Replication Receive Queue Size, SMTP Server\Remote Queue Length, SMTP Server\Remote Retry Queue Length, SMTP Server\Local Queue Length, Virus scan queue length


3.    Network thresholds:  Network Interface\Packet Outbound errors, Network Interface\Output Queue Length, Network Interface\Bytes Total/sec


4.    LDAP latency checks:  MSExchangeDSAccess Domain Controllers\LDAP Search Time and MSExchangeDSAccess Domain Controllers\LDAP Read Time thresholds were added to detect problems due to bottlenecks on the AD server.


5.    RPC requests: Max RPC requests, average RPC request thresholds are now dependent on the number of users per server


6.    Memory changes: Validate that the Database Cache Size Peak < 1.2 GB.  In addition, most of the memory rules have been changed to work off the maximum rather than the average values.


7.    Improved reporting: Reporting of results between steps and the summary are now displayed in a consistent fashion, using tabbed pages for the different reports.


Pick up the latest version from here.


Performance counters analyzed by this version of ExPTA:


\Database(Information Store)\Database Cache Size

\Database(Information Store)\Database Page Fault Stalls/sec

\Database(Information Store)\Log Record Stalls/sec

\Database(Information Store)\Log Threads Waiting

\LogicalDisk(*)\Avg. Disk Queue Length

\LogicalDisk(*)\Avg. Disk sec/Read

\LogicalDisk(*)\Avg. Disk sec/Write

\LogicalDisk(*)\Disk Reads/sec

\LogicalDisk(*)\Disk Writes/sec

\Memory()\Available Mbytes

\Memory()\Free System Page Table Entries


\Memory()\Pool Nonpaged Bytes

\Memory()\Pool Paged Bytes

\MSExchangeIS Mailbox(_Total)\Active Client Logons

\MSExchangeIS Public(_Total)\Active Client Logons

\MSExchangeIS()\Active User Count

\MSExchangeIS()\Exchmem: Number of Additional Heaps

\MSExchangeIS()\Exchmem: Number of heaps with memory errors

\MSExchangeIS()\Exchmem: Number of memory errors

\MSExchangeIS()\RPC Averaged Latency

\MSExchangeIS()\RPC Operations/sec

\MSExchangeIS()\RPC Requests

\MSExchangeIS()\VM Largest Block Size

\MSExchangeIS()\VM Total 16MB Free Blocks

\MSExchangeIS()\VM Total Free Blocks

\MSExchangeIS()\VM Total Large Free Block Bytes

\Paging File(_Total)\% Usage

\Process(*)\% Processor Time

\Process(emsmta)\Private Bytes

\Process(inetinfo)\Private Bytes

\Process(lsass)\Private Bytes

\Process(mad)\Private Bytes

\Process(store)\Private Bytes

\Process(System)\Private Bytes

\Processor(_Total)\% Processor Time

\System()\Context Switches/sec

\System()\Processor Queue Length

\Epoxy(IMAP)\Client Out Queue Length

\Epoxy(IMAP)\Store Out Queue Length

\Epoxy(POP3)\Client Out Queue Length

\Epoxy(POP3)\Store Out Queue Length

\MSExchangeIS Public(_Total)\Replication Receive Queue Size

\SMTP Server(_Total)\Categorizer Queue Length

\SMTP Server(_Total)\Remote Queue Length

\SMTP Server(_Total)\Remote Retry Queue Length

\SMTP Server(_Total)\Local Queue Length

\MSExchangeIS()\Virus Scan Queue Length

\MSExchangeDSAccess Domain Controllers(*)\LDAP Search Time

\MSExchangeDSAccess Domain Controllers(*)\LDAP Read Time

\Network Interface(*)\Output Queue Length

\Network Interface(*)\Current Bandwidth

\Network Interface(*)\Packets Outbound Errors

\Network Interface(*)\Bytes Total/sec

\MSExchangeDSAccess Domain Controllers(*)\LDAP Read calls/Sec

\MSExchangeDSAccess Domain Controllers(*)\LDAP Search calls/Sec

\MSExchangeDSAccess Caches(*)\Cache Hits/Sec

\MSExchangeDSAccess Caches(*)\LDAP Searches/Sec

\MSExchangeIS()\Virus Scan Files Scanned/Sec

\MSExchangeIS()\Virus Scan Files Quarantined/Sec

\MSExchangeIS()\Virus Scan Messages Processed/sec


Hope you like it! Let us know if you have feedback on the tool!


- Nicole Allen



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