Performance Flashcards
What are the two most common ways of monitoring cpu and memory metrics?
vSphere web client resxtop/esxtop
List the common memory metrics for hosts?
Total Capacity Used by VMKernel
Shared Swap Used
Compressed
Balloon
List the common memory metrics used by VM’s
MEMSZ
Usage
Overhead
Shared
Balloon
Swapped
Swap in Rate
Swap out Rate
Compressed
Zipped Memory
List the common CPU metrics for hosts
Used
CPU Ready
Swap Wait
List the common Network metrics for hosts and virtual machines
Packets transmitted
Packets received
Data transmit rate
Data receive rate
Transmit packets dropped
Receive packets dropped
List the common storage metrics
Commands Issued
Read Requests
Write Requests
Read Rate
Write Rate
Physical Device
Command Latency
Kernel Command Latency
Command Latency
Bus Resets
Read Latency
Write Latency
List the critical performance metrics
Memory; Swap Used
Memory; Compressed
Memory; Balloon
CPU; Usage
CPU; Ready
CPU; Swap wait
Network; Transmit Packets Dropped
Network; Receive Packets Dropped
Disk: Commands Issued
Disk: Physical Command Latency
Disk: Kernel Command Latency
Disk: Command Latency
Disk: Commands terminated
Disk: Bus Resets
What six objects can you see overview/advanced charts on
Datacenters, Hosts, Clusters, Datastore, Resource Pools, Virtual Machines
What is a limitation of overview charts?
They cannot be customized
What are four advantages of advanced charts?
- Additional details can be obtained in a chart by hovering the mouse over specific data points.
- Chart data can be exported.
- Chart data can be saved as an image.
- Separate windows can be opened to view performance data.
What are five things creating advanced charts allow you to do?
- Use multiple user-selected counters 2. Define date/time ranges using the Custom chart option 3. Select the chart type 4. Select objects to use in the chart 5. Save chart settings for future use
What two options can an advanced chart be saved as?
Image and CSV
Study the thresholds for resxtop
