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Foglight for SQL Server (Cartridge) 5.9.3.20 - User Guide

Introduction to this Guide Using Foglight for SQL Server
Viewing the Databases Dashboard Overview Dashboard Advisories Dashboard Monitoring Data Replication Monitoring SQL Performance Reviewing Memory Usage Reviewing the Instance Activity Reviewing Database Usage Reviewing the Services Using the HADR Drilldown Using the Logs Drilldown Reviewing Configuration Settings Viewing User-defined Performance Counters and Collections
Monitoring Business Intelligence Services Administering Foglight for SQL Server
Configuration Settings Managing Foglight for SQL Server Agent Settings Reviewing Foglight for SQL Server Alarms Generating Reports Monitoring SQL Server instances on VMware servers
Glossary
A
Access methods Adhoc SQL Plans Alarm Alert Allow updates Anonymous subscription Authentication AutoClose AutoGrow Automatic Discovery AutoShrink B Batch BCP (Bulk Copy Program) Blocking Books Online Bound trees Buffer Buffer cache Buffer pool Bulk copy Bulkinsert Bulk load C Cache CAL Calibration Cardinality Cartridge Chart Checkpoint process Client network utility CLR Compile Connect Connection Connectivity software CPU Usage Cursors D Data access components Data file Data storage engine Database Database object DataFlow DBCC DBID DBO Deadlock Disk queue length Disk transfer time Disk utilization DiskPerf Distributing instance Distributor DMO Drilldown DTC DTS E Error log Event alert Execution contexts Extended stored procedures Extent External procedures F File Filegroup File cache Foglight Agent Manager Foglight Management Server Foreign key Forwarded records Free buffers Free list Free pages Free potential Free space Freespace scans Full text search G GAM Ghosted records Growth increment GUID H Hash buckets Hashing Heap Hit rate Hit ratio Host name Host process I I/O Index Indid Integrated security Intent Locks J Job K Kernel memory Kernel mode Kill L Latch Lazy writer Licensing Lightweight pooling Lock Lock area Lock escalation Lock mode Log Log cache Log writer Logical I/O LRU LSN M Master MaxSize MDAC Metric Misc.normalized trees Model Monitor page file N Named pipes Net library NIC Null O OBID Object plans OLAP OLAP service OLTP Optimizer Optimizer cache osql P Page life expectancy Paging Panel Parse Parser Per seat licensing Per server licensing Performance alert Physical I/O Physical read Physical write PID Pinned Plan Plan cache Potential growth Prepared SQL plans Primary key Privileged mode Procedure cache Procedure plans Process Profiler Publication database Publisher Publisher databases Publishing server Pull subscription Pulse Push subscription Q Query plan R RAID Random I/O Read ahead Recompile Referential integrity Relational data engine Replication procedure plans Role Rollback S sa Schema locks Sequential I/O Session Severity SGAM Shared locks Show advanced options SMP Sort, Hash, Index Area SPID Spike Spinner SQL Agent Mail SQL Mail SQL Plans SQL Server Agent SQL Server authentication SQL Server books online Standard deviation Stolen pages Stored procedure Support service SYSADMIN role T TDS TempDB Temporary tables and table variables Threshold Torn page detection Transaction Trigger Trigger plans Truncate Trusted U UMS Unused space User connection area User mode V Virtual log file VLF W Waitfor Windows authentication mode Working set
Reference
SQL PI Repository Cold Backup Procedure SQL Performance Investigator Metrics
Active Time All SQL Agents CPU Usage All SQL Agents Resident Memory Usage Availability Average Physical I/O Operations Average SQL Response Time Backup Recovery Wait Blocked Lock Requests Checkpoint Pages CLR Wait CPU Usage CPU Wait Cursor Synchronization Wait Database Replication Wait Deferred Task Worker Wait Degree of Parallelism Disk Utilization DTC CPU Usage DTC Resident Memory Usage Distributed Transaction Wait Executions Ended Executions Started External Procedures Wait Full Scans Full Text Search CPU Usage Full Text Search Resident Memory Usage Full Text Search Wait Free Buffer Wait Hosted Components Wait IO Bulk Load Wait IO Completion Wait IO Data Page Wait IO Wait Latch Buffer Wait Latch Wait Latch Savepoint Wait Lazy Writes Lock Wait Lock Bulk Update Wait Lock Exclusive Wait Lock Intent Wait Lock Requests Lock Schema Wait Lock Shared Wait Lock Update Wait Lock Wait Log Buffer Wait Log Flushes Log Other Wait Log Synchronization Wait Log Wait Log Write Wait Memory Wait Network IO Wait Network IPC Wait Network Mirror Wait Network Wait Non SQL Server CPU Usage Non SQL Resident Memory Usage OLAP CPU Usage OLAP Resident Memory Usage OLEDB Provider Full Text Wait Other CPU Usage Other Miscellaneous Wait Other Wait Overall CPU Page Life Expectancy Page Splits Parallel Coordination Wait Physical I/O Physical Memory Used Physical Page Reads Physical Page Writes Probe Scans Plan Cache Hit Rate Range Scans Rec Ended Duration Remote Provider Wait Run Queue Length Samples Service Broker Wait Session Logons Session Logoffs SQL Agent CPU Usage SQL Agent Resident Memory Usage SQL Executions SQL Mail CPU Usage SQL Mail Resident Memory Usage SQL Recompilations SQL Response Time SQL Server Background CPU Usage SQL Server Cache Memory SQL Server Connections Memory SQL Server Connections Summary SQL Server Foreground CPU Usage SQL Server Resident Memory Usage SQL Server Swap Memory Usage Synchronous Task Wait Table Lock Escalation Target Instance Memory Total CPU Usage Total Instance Memory Virtual Memory Used
Rules Collections and Metrics

Logical Disks

Purpose

This collection displays the logical disk activity for each logical disk.

Type

System.

Collection Sampling Intervals
 
 
Frequency Mode
Collection Interval (In Seconds)

Real-time

20

Online

60

Offline

300

Collection Metrics
 
 
Display Name
Description

Disk Queue Length

Disk Queue length tracks the average number of I/O requests, from all disks in the system, which are queued and waiting for a disk during a sampled interval. This figure may include I/O activity generated by processes other than SQL Server.

Values that exceed the threshold set in this metric indicate a bottleneck.

Disk Queue Length

Threshold

A flag indicating a threshold for the number of I/O requests that were outstanding on the busiest disk in the system.

Disk Percentage Used

The percentage of used space on the specified partition.

Disk Partition

The logical disks to which the Disk Queue Length value refers.

Partition Free Pct

The percentage of free space on the specified partition.

Partition Free Space

The amount of free space (in megabytes) on the specified partition.

Partition Total Space

The total space (in megabytes) on a particular partition.

Memory Manager

Purpose

This collection monitors how SQL Server stores and manages its memory.

Type

System.

Collection Sampling Intervals
 
 
Frequency Mode
Collection Interval (In Seconds)

Real-time

20

Online

60

Offline

300

Collection Metrics
 
 
Display Name
Description

% Total Server Memory

The total percentage of dynamic memory that the server is currently consuming.

This value is calculated as follows:

100 * (Total Server Memory / Physical RAM)

Cache Memory

Total amount of dynamic memory (in megabytes) that the server is using for the dynamic SQL cache.

Connections Memory

Memory (in megabytes) allocated to keeping track of each connection's attributes.

Locks Memory

Memory (in megabytes) allocated to keeping track of locks.

Max SQL Server Memory

The maximum amount of dynamic memory that the instance is allowed to consume.

Memory Growth Pressure

Relative amount of additional memory (presented as a percentage) that SQL Server is willing to consume.

Values higher than 20 percent might indicate that the system is low on physical memory.

The memory growth pressure value is calculated as follows:

100 – ((100 * Total Server Memory)

Target Server Memory)

Optimizer Memory

Work area for the Optimizer in megabytes.

Sort Hash Memory

Memory in megabytes used for the Sort, Hash, and Index operations.

Target Server Memory

The maximum memory allocation size in megabytes SQL Server can reach at a current time (this value may change during SQL Server's work).

Values significantly higher than Total Server Memory might indicate that the system is low on physical memory.

Total Server Memory

The total amount of dynamic memory (in megabytes) that the server is currently consuming.

Mirroring

This collection retrieves general data, such as role, state and status, about each database involved in the mirroring process.

Type

SQL Server.

Collection Sampling Intervals
 
 
Frequency Mode
Collection Interval (In Seconds)

Real-time

300

Online

300

Offline

900

Collection Metrics
 
 
Metric Display Name
Description

Connection Timeout

Defines the number of seconds that the principal database can be in Disconnected state, before the mirroring session will actually run a failover scenario to the mirroring database.

Database Name

The name of the database.

End Log LSN

The actual LSN (Log Sequence Number) of the mirroring session, This value should be equal to the Failover LSN value.

Failover LSN

The LSN (Log Sequence Number) value that the mirroring database should have in order to enable a smooth failover.

Mirror

The name of the instance whose role in the mirroring process is Mirror.

Mirroring Role

The role the database takes in the mirroring process; either principal or mirror.

Mirroring Status

Indicates the severity determined based on the database state: Normal, Warning or Critical.

Partner Name

The server network address defined for the Partner.

Principal

The name of the instance whose role in the mirroring process is Principal.

Redo Queue

The redo queue size. This size can be either lett Unlimited or defined in MB.

Replication LSN

The LSN (Log Sequence Number) used by the replication session (If such a session exists).

Role Sequence

A cumulative number that indicates the number of role switches that took place between the two partners involved in the mirroring process.

Safety Level

The safety level at which the mirroring session is configured to work (high availability /high performance).

Witness Name

The server network address defined for the Witness.

Witness State

The state of the Witness instance (valid only when the High Safety level is configured).

Mirroring Performance Counters

This collection retrieves data regarding performance and data flow-related issues between the databases involved in the mirroring operation.

Type

System.

Collection Sampling Intervals
 
 
Frequency Mode
Collection Interval (In Seconds)

Real-time

300

Online

300

Offline

900

Collection Metrics
 
 
Display Name
Description

Commit Acknowledgment Delay

Indicates a delay in waiting for acknowledgement of unterminated transaction commit. This metric is specific to the principal database, and holds values only when a Full safety level is configured.

Database Name

The name of the database.

Log Remaining For Undo

Indicates the size of transaction logs in the mirror database that remain for recovering the mirror database to its operative state. This metric holds data only after a failover has occurred.

Log Cache Redone

The amount of transaction log in MB that is being read from redo cache rather than from the transaction log. Constantly low values of this metric indicate that the transaction log is arriving faster than it can be read by the redo task. This metric is specific to the mirror database.

Log Harden Wait Time

The amount of time spent waiting for the log to be written to the mirroring database. High values of this metric can indicate that the disk of the mirroring database is loaded. This value is specific to the mirror database.

Log Received

Indicates the rate in MB of log received from the principal database. This metric is specific to the mirror database.

Log Rolled Forward

The size in MB of log that was rolled forward on the mirror database. This value is specific to the mirror

Log Scanned For Undo

Indicates the size of transaction logs in the mirror database that were scanned for Undo. This metric holds data only after a failover has occurred, as the log scanning is carried out in order to restore the mirror database to its operative state.

Log Send Flow Buffer Wait

The amount of time the mirroring session had to wait to use the mirroring flow control buffer. This value is specific to the principal database.

Log Sent

Indicates the rate in MB of log sent from the principal to the mirror database. This metric is specific to the principal database.

Log Sent From Cache

Indicates the amount of log, in MB, sent from the principal database cache rather than straight from the transaction log.

As sending from the cache is much faster and more efficient, this metric's values should be as high as possible. Constantly low values indicate that the transaction log generation rate is faster than the rate at which it is sent to the mirror database. This value is specific to the principal database.

Mirroring Roundtrip (Latency)

Indicates the latency of the mirroring session.

Occupied Cache Percent

The percentage of the occupied cache within the selected database.

Roll Forward Queue

Total size in MB that remains to roll forward to the mirroring database. This value is specific to the mirror database.

Send Queue

Total size in MB of data waiting to be sent to the mirroring database. This value is specific to the principal database.

Write Commit

This metric, which holds values only when a Full safety level is configured, indicates the number of transactions in the principal database that had to wait for a write commit in the mirror database's transaction log.

Low values of this metric indicate a bottleneck.

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