6.5.1
Table Of Contents
- vSphere Monitoring and Performance
- Contents
- About vSphere Monitoring and Performance
- Monitoring Inventory Objects with Performance Charts
- Performance Chart Types
- Data Counters
- Metric Groups in vSphere
- Data Collection Intervals
- Data Collection Levels
- View Performance Charts
- Performance Charts Options Available Under the View Menu
- Overview Performance Charts
- Clusters
- Data centers
- Datastores and Datastore Clusters
- Disk Space (Data Counters)
- Disk Space (File Types)
- Disk Space (Datastores)
- Disk Space (Virtual Machines)
- Storage I/O Control Normalized Latency
- Storage I/O Control Aggregate IOPs
- Storage I/O Control Activity
- Average Device Latency per Host
- Maximum Queue Depth per Host
- Read IOPs per Host
- Write IOPs Per Host
- Average Read Latency per Virtual Machine Disk
- Average Write Latency per Virtual Machine Disk
- Read IOPs per Virtual Machine Disk
- Write IOPs Per Virtual Machine Disk
- Virtual Machine Observed Latency per Datastore
- Hosts
- Resource Pools
- vApps
- Virtual Machines
- CPU (%)
- CPU Usage (MHz)
- Disk (Average)
- Disk (Rate)
- Disk (Number)
- Virtual Disk Requests (Number)
- Virtual Disk Rate (KBps)
- Memory (Usage)
- Memory (Balloon)
- Memory (Swap Rate)
- Memory (Data Counters)
- Network (Usage)
- Network (Rate)
- Network (Packets)
- Disk Space (Data Counters)
- Disk Space (Datastores)
- Disk Space (File Types)
- Fault Tolerance Performance Counters
- Working with Advanced and Custom Charts
- Troubleshoot and Enhance Performance
- Monitoring Guest Operating System Performance
- Monitoring Host Health Status
- Monitoring Events, Alarms, and Automated Actions
- View Events
- View System Logs
- Export Events Data
- Streaming Events to a Remote Syslog Server
- Retention of Events in the vCenter Server Database
- View Triggered Alarms and Alarm Definitions
- Live Refresh of Recent Tasks and Alarms
- Set an Alarm
- Acknowledge Triggered Alarms
- Reset Triggered Event Alarms
- Preconfigured vSphere Alarms
- Monitoring Solutions with the vCenter Solutions Manager
- Monitoring the Health of Services and Nodes
- Performance Monitoring Utilities: resxtop and esxtop
- Using the vimtop Plug-In to Monitor the Resource Use of Services
- Monitoring Networked Devices with SNMP and vSphere
- Using SNMP Traps with vCenter Server
- Configure SNMP for ESXi
- SNMP Diagnostics
- Monitor Guest Operating Systems with SNMP
- VMware MIB Files
- SNMPv2 Diagnostic Counters
- System Log Files
- View System Log Entries
- View System Logs on an ESXi Host
- System Logs
- Export System Log Files
- ESXi Log Files
- Upload Logs Package to a VMware Service Request
- Configure Syslog on ESXi Hosts
- Configuring Logging Levels for the Guest Operating System
- Collecting Log Files
- Viewing Log Files with the Log Browser
- Enable the Log Browser Plug-In on the vCenter Server Appliance
- Enable the Log Browser Plug-In on a vCenter Server Instance That Runs on Windows
- Retrieve Logs
- Search Log Files
- Filter Log Files
- Create Advanced Log Filters
- Adjust Log Times
- Export Logs from the Log Browser
- Compare Log Files
- Manage Logs Using the Log Browser
- Browse Log Files from Different Objects
- Index
Table 1‑29. Data Counters
Chart Label Description
virtual_machine Amount of datastore space used by the ve virtual machines with the most used
datastore space.
n
Counter: used
n
Stats Type: Absolute
n
Unit: Gigabytes (GB)
n
Rollup Type: Latest
n
Collection Level: 1
Chart Analysis
The datastore is at full capacity when the used space is equal to the capacity. Allocated space can be larger
than datastore capacity, for example, when you have snapshots and thin-provisioned disks. If possible, you
can provision more space to the datastore, or you can add disks to the datastore or use shared datastores.
If snapshot les are consuming high datastore space, consider consolidating them to the virtual disk when
they are no longer needed. Consolidating the snapshots deletes the redo log les and removes the snapshots
from the vSphere Web Client user interface. For information about consolidating the data center, see the
vSphere documentation.
Storage I/O Control Normalized Latency
This chart displays the normalized latency in microseconds on the datastore. Storage I/O Control monitors
latency to detect congestion on the datastore. This metric computes a weighted response time across all
hosts and VMs accessing the datastore. I/O count is used as the weight for the response time. It captures the
device level latency and does not include any queuing inside the hypervisor storage stack or inside the VM.
It is adjusted for the I/O size. High latencies that are the result of large I/Os are discounted so as not to make
the datastore seem slower than it really is. Data for all virtual machines is combined. This chart displays
zero values when Storage I/O Control is disabled.
This chart is located in the Performance view of the datastore Performance tab. The
sizeNormalizedDatastoreLatency counter can also be displayed for datastore cluster charts.
Table 1‑30. Data Counters
Chart Label Description
Storage I/O Control
Normalized Latency
Storage I/O Control monitors latency to detect congestion on the datastore.
n
Counter: sizeNormalizedDatastoreLatency
n
Stats Type: Absolute
n
Unit: Microseconds
n
Rollup Type: Average
n
Collection Level: 3
Storage I/O Control Aggregate IOPs
This chart displays the number of I/O operations per one second on the datastore, aggregated across all
hosts, and virtual machines accessing this datastore. The chart displays zero values when Storage I/O
Control is disabled.
This chart is located in the Performance view of the datastore or the datastore cluster Performance tab. The
counter can be displayed for datastore and datastore cluster charts.
Chapter 1 Monitoring Inventory Objects with Performance Charts
VMware, Inc. 29