Amazon RDS for SQL Server
Welcome
- Welcome
Connect
- Connection Details
- Grant Account Permissions
Alarms (A-K)
- Alarms
- CPU Time Percentage Used
- Databases - Data File Group About to Grow
- Databases - Data File Group Space Used
- Databases - Dynamic Data File Group Growths Remaining
- Databases - Dynamic Log File Growths Remaining
- Databases - Log File Space Used
- Databases - Log Flush Wait Time
- Databases - SQL I/O Errors
- Databases - Unavailable
- Error Log - Error Count
- Error Log - Fatal Current Process Error (severity level 20)
- Error Log - Fatal Database Integrity Suspect Error (severity level 23)
- Error Log - Fatal Database (dbid) Processes Error (severity level 21)
- Error Log - Fatal Hardware Error (severity level 24)
- Error Log - Fatal Hardware Error (severity level 25)
- Error Log - Fatal Table Integrity Suspect Error (severity level 22)
- Error Log - High Severity Message
- Error Log - Information Severity Message
- Error Log - Low Severity Message
- Error Log - Medium Severity Message
- I/O Stall Time
- Index Fragmentation
- Index Fragmentation Status
Alarms (L-M)
- Latch - Total Wait Time Rate
- Locks - Blocked Processes
- Locks - Deadlocks
- Memory - Page Life Expectancy
- Missing SQL Performance Counters
- Monitored Server - Azure SQL Managed Instance Alarm Action Failure
- Monitored Server - Azure SQL Managed Instance Alarm Evaluation Failure
- Monitored Server - Azure SQL Managed Instance Collection Execution Failure
- Monitored Server - Azure SQL Managed Instance Connection Failure
- Monitored Server - Azure SQL Managed Instance Host Not Defined
- Monitored Server - Azure SQL Managed Instance Planned Outage
- Monitored Server - Azure SQL Managed Instance Secondary Connection Failure
Alarms (N-Z)
- Network - Azure SQL Managed Instance Packets Error Rate
- Performance Investigator
- Poor Performance Health
- SQL - Long Running SQL
- SQL - Running out of Threads
- SQL Agent - Jobs Failed
- SQL Agent - Long Running Jobs (Percent)
- SQL Agent - Long Running Jobs (Time)
- SQL Custom Counters
- SQL Virtual Log Files Count
- Tempdb Auto Growth
- Tempdb Contention
- Tempdb Version Store Generation Rate
- Tempdb Version Store Size
- User - Connection Count
- User - Logins Per Second
- User - Response Time
Spotlight Overview page
- Spotlight Overview page
- Sessions panel
- Flows
- Processes Panel
  - Total
  - System
  - User
  - Blocked Processes
  - CPU Usage
- Flows
  - Logical Reads
  - Compiles
- Memory panel
- Flows
- Disk Storage panel
- Performance Health panel
  - Performance Health
- System panel
  - Version
  - Host
  - Custom
  - Status
- Background Processes panel
  - Error Log
Memory drilldown
- Memory drilldown
- Memory Areas
- Server Memory
- Hit Rates
- Cache
- Buffer Cache Page Life Expectancy
SQL Activity drilldown
- SQL Activity drilldown
- Sessions page
- Summary page
- Locks page
  - Locks
  - Lock Types
  - Latches
- Blocking page
  - Blocking
  - Number of Blocked Processes
- Deadlocks page
  - Deadlock List
- I/O by File page
  - I/O by File grid
  - I/O by File chart
- Custom Counters page
  - Custom Counters chart
  - Custom Counters grid
- Query Execution Statistics page
Performance Health drilldown
- Performance Health drilldown
Wait Statistics drilldown
- Wait Statistics drilldown
- Wait Time Trend
- Waits Detail
Wait Events drilldown
- Wait Events drilldown
- SQL
- Plan
Databases drilldown
- Databases drilldown
- Databases page
  - Databases grid
- Summary page
  - Database Space
  - Database History
- File Groups page
- Data Files page
- Transaction Logs page
- Log Files page
- Tables page
- Indexes page
- Disk Space page
  - Disk Space chart
- Fragmented Indexes page
  - Fragmented Indexes grid
Support Services drilldown
- Support Services drilldown
- SQL Agent Jobs page
- Full Text Search page
  - Full Text Search Service
Configuration drilldown
- Configuration drilldown
- Configuration page
  - SQL Server Configuration grid
Error log drilldown
- Error log drilldown
- SQL Server Error Logs
- SQL Agent Error Logs
Workload Analysis drilldown
- Workload Analysis drilldown
- SQL
- Plan
Tempdb drilldown
- Tempdb drilldown
- Usage page
- Contention page
  - Wait Time
  - Sessions involved in this contention
Collections
- Collections
- Collect additional diagnostic information
Troubleshooting
- Troubleshooting

I/O Stall Time alarm

The I/O Stall Time alarm becomes active when the average I/O wait time for any database file exceeds a threshold. This value is taken over a specific number of background collections.

Sustained high I/O wait times are a good indicator that you have a disk subsystem bottleneck and that I/O device service times will be degraded.

When the alarm is raised look at the Amazon RDS for SQL Server | Wait Events drilldown | IO Category to see what is contributing to I/O consumption. If Amazon RDS for SQL Server is contributing to I/O consumption look at the following:

The Amazon RDS for SQL Server | SQL Activity drilldown | I/O by File page to see which files are waiting on I/O operations. High rates of wait on log files may indicate that the device on which the log file resides is not able to keep up.
The Amazon RDS for SQL Server | SQL Activity drilldown | Sessions page to see which SQL Server sessions are generating high amounts of disk activity. Select a session; the Statement tab for a selected session provides for further analysis.
The Amazon RDS for SQL Server | Workload Analysis drilldown. Looking at the top statements by Avg Logical Reads/Writes shows SQL that may be doing large amounts of logical I/O. This logical I/O may result in unnecessary physical I/O.

Note: From the Spotlight Client you can configure this alarm to ignore certain values. You can configure different thresholds for specific database files.

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