> For the complete documentation index, see [llms.txt](https://docs.tibero.com/sysmasterdb.en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tibero.com/sysmasterdb.en/8.3_manual/global-navigation-bar-gnb.md).

# Global Navigation Bar (GNB)

The users can access each menu in SysMaster and use its functions via the Global Navigation Bar.

<figure><img src="https://content.gitbook.com/content/sb1FUByW5QIGQA7ZolFP/blobs/UEPauCr8KPObsbxRBbsC/image.png" alt=""><figcaption></figcaption></figure>

The menus accessible via the GNB are Realtime, Analysis, Notifications, Manual Download, Settings, and Profile.

## [Realtime](/sysmasterdb.en/8.3_manual/realtime.md)

### [Main Monitoring](/sysmasterdb.en/8.3_manual/realtime/main-monitoring.md)

[Session Monitoring](/sysmasterdb.en/8.3_manual/realtime/main-monitoring/session-monitoring.md) - Monitor real-time session metrics such as logical reads, physical reads, and execution counts.

[Server Monitoring](/sysmasterdb.en/8.3_manual/realtime/main-monitoring/server-monitoring.md) - Monitor OS-level resource usage, such as CPU and memory usage, and resource consumption by process with filter options.

[Instance Monitoring](/sysmasterdb.en/8.3_manual/realtime/main-monitoring/instance-monitoring.md) - Monitor selected instances in real time with customizable chart layout the users set.

### [Usage Monitoring](/sysmasterdb.en/8.3_manual/realtime/usage-monitoring.md)

[Tablespace Usage](/sysmasterdb.en/8.3_manual/realtime/usage-monitoring/tablespace-usage.md) - Monitor tablespace usage and status with hourly updates and real-time data collection.

[File Usage](/sysmasterdb.en/8.3_manual/realtime/usage-monitoring/file-usage.md) - Automatically collect database file usage every hour, with real-time updates available when needed.

[Temp Usage](/sysmasterdb.en/8.3_manual/realtime/usage-monitoring/temp-usage.md) - Monitor temporary tablespace usage to detect inefficient queries or excessive resource usage.

[Undo Usage](/sysmasterdb.en/8.3_manual/realtime/usage-monitoring/undo-usage.md) - Monitors undo usage for sessions with uncommitted transactions.

### [Lock Monitoring](/sysmasterdb.en/8.3_manual/realtime/lock-monitoring.md)

Monitor session lock information with a tree view and terminate blocked sessions as needed.

### [High Availability Monitoring](/sysmasterdb.en/8.3_manual/realtime/high-availability-monitoring.md)

[TSC Monitoring](/sysmasterdb.en/8.3_manual/realtime/high-availability-monitoring/tsc-monitoring.md) - Visualize the TSC cluster topology and monitor database roles, status, and TSN details.

## [Analysis](/sysmasterdb.en/8.3_manual/analysis.md)

### [Performance Analysis](/sysmasterdb.en/8.3_manual/analysis/performance-analysis.md)

[Performance Trend](/sysmasterdb.en/8.3_manual/analysis/performance-analysis/performance-trend.md) - Analyze long-term performance trends using graphs and time slice functions.

[Top N Performance](/sysmasterdb.en/8.3_manual/analysis/performance-analysis/top-n-performance.md) - Analyze the top SQL statements that are the main causes of high resource usage.

[Heatmap Trend](/sysmasterdb.en/8.3_manual/analysis/performance-analysis/heatmap-trend.md) - Visualize resource usage by time period using heatmaps and drill-down analysis.

### [History Analysis](/sysmasterdb.en/8.3_manual/analysis/history-analysis.md)

[Changed Plan Analysis](/sysmasterdb.en/8.3_manual/analysis/history-analysis/changed-plan-analysis.md) - Compare and analyze changes in SQL execution plans (SQL Plans) over a specified period.

[All Session Flow](/sysmasterdb.en/8.3_manual/analysis/history-analysis/all-session-flow/all-session-flow.md) - Monitor session connection trends and real-time session status.

[Search SQL Text ](/sysmasterdb.en/8.3_manual/analysis/history-analysis/search-sql-text.md) - Tracks SQL statements that triggered Hard Parse events.

[Alert Analysis](/sysmasterdb.en/8.3_manual/analysis/history-analysis/alert-event-analysis.md) - Track system and user-defined alert history.

[Invalid Object ](/sysmasterdb.en/8.3_manual/analysis/history-analysis/invalid-object.md) - Tracks the number and details of invalid database objects.

### [Usage Analysis](/sysmasterdb.en/8.3_manual/analysis/usage-analysis.md)

[Tablespace Usage](/sysmasterdb.en/8.3_manual/analysis/usage-analysis/tablespace-usage.md) - Tracks changes in tablespace size over time.

[Filesystem Usage](/sysmasterdb.en/8.3_manual/realtime/usage-monitoring/file-usage.md) - Tracks changes in the size of the server's filesystem.

[Segment Usage](/sysmasterdb.en/8.3_manual/analysis/usage-analysis/segment-usage.md) - Tracks changes in segment size over a specified period.

[Temp Usage ](/sysmasterdb.en/8.3_manual/analysis/usage-analysis/temp-usage.md) - Monitors changes in the size of temporary tablespaces by time.

[Undo Usage](/sysmasterdb.en/8.3_manual/analysis/usage-analysis/undo-usage.md) - Tracks changes in the size of the undo tablespace over time.

### [Report](/sysmasterdb.en/8.3_manual/analysis/report.md)

[TPR Report](/sysmasterdb.en/8.3_manual/analysis/report/tpr-report.md) - Generate and analyze performance reports at the instance or cluster level.

[ASH Report](/sysmasterdb.en/8.3_manual/analysis/report/ash-report.md) - Generate and view ASH reports for active session analysis.

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