Collecting additional metrics using Guest OS diagnostics
Microsoft Azure provides a set of standard host-level metrics. Guest OS metrics are not available by default. You can use guest-level monitoring to collect metrics of your guest virtual machines. The metrics are useful for investigating the capacity-related issues that might occur in your Azure environment. When you run the Microsoft Azure API ETL, these metrics are imported into the BMC Helix Capacity Optimization database.
Enable the guest-level monitoring for Azure virtual machines
For new virtual machines
- Log in to the Azure portal.
- In the left pane, select Virtual machines.
- Click Add to create a virtual machine.
- On the Management tab, enable the OS guest diagnostics option.
- Add the required information to create the virtual machine and click Review + create.
The virtual machine is created with the virtual machine agent installed in the guest OS.
For existing virtual machines
- Log in to the Azure portal.
In the left pane, select Virtual machines. - A list of your virtual machines is displayed.
- Select the virtual machine for which you want to enable guest-level monitoring.
- In the left pane of virtual machine, in the Monitoring category, click Diagnostic settings.
- On the Diagnostics settings page, click Enable guest-level monitoring.
The Azure diagnostics agent is installed on the virtual machine and the metrics are displayed in the Overview tab.
- Log in to the Azure portal.
- Configure and run the ETL. For more information, see Microsoft Azure - Azure API Extractor.
- Verify that the metrics are displayed in the Workspace.
The following tables lists the metrics that are available when the guest-level monitoring option is enabled in Azure:
Performance metrics for Linux virtual machines
BMC Helix Capacity Optimization metric | Azure metric | Formula |
|---|---|---|
CPU_UTIL_GUEST | \\Processor\PercentProcessorTime | PERCENT_PROCESSOR_TIME/100 |
CPU_UTIL_IDLE | \\Processor\PercentIdleTime | PERCENT_IDLE_TIME/100 |
CPU_UTIL_USER | \\Processor\PercentUserTime | PERCENT_USER_TIME/100 |
CPU_UTIL_SYSTEM | \\Processor\PercentPrivilegedTime | PERCENT_PRIVILEGED_TIME/100 |
CPU_UTIL_WAIT | \\Processor\PercentIOWaitTime | PERCENT_IO_WAIT_TIME/100 |
MEM_FREE | \\Memory\AvailableMemory | Not applicable |
MEM_CONSUMED | \Memory\UsedMemory | Not applicable |
MEM_UTIL | \\Memory\PercentUsedMemory | PERCENT_USED_MEMORY/100 |
MEM_UTIL_CACHED | \\Memory\PercentUsedByCache | PERCENT_USED_BY_CACHE/100 |
MEM_PAGE_RATE | \\Memory\PagesPerSec | Not applicable |
MEM_PAGE_IN_RATE | \\Memory\PagesReadPerSec | Not applicable |
MEM_PAGE_OUT_RATE | \\Memory\PagesWrittenPerSec | Not applicable |
SWAP_SPACE_FREE | \\Memory\AvailableSwap | Not applicable |
SWAP_SPACE_USED | \\Memory\UsedSwap | Not applicable |
SWAP_SPACE_UTIL | \\Memory\PercentUsedSwap | PERCENT_USED_SWAP/100 |
DISK_IO_RATE_GUEST | \\PhysicalDisk(_Total)\\Disk Transfers/sec | Not applicable |
DISK_IO_READ_RATE_GUEST | \\PhysicalDisk\ReadsPerSecond | Not applicable |
DISK_IO_WRITE_RATE_GUEST | \\PhysicalDisk\WritesPerSecond | Not applicable |
DISK_TRANSFER_RATE_GUEST | \\PhysicalDisk(_Total)\\Disk Bytes/sec | Not applicable |
DISK_WRITE_RATE_GUEST | \\PhysicalDisk(_Total)\\Disk Write Bytes/sec | Not applicable |
NET_OUT_BYTE_RATE_GUEST | \\NetworkInterface\\BytesTransmitted | BYTES_TRANSMITTED/3600 |
NET_IN_BYTE_RATE_GUEST | \\NetworkInterface\\BytesReceived | BYTES_RECEIVED/3600 |
NET_BYTE_RATE_GUEST | \\NetworkInterface\\BytesTotal | BYTES_TOTAL/3600 |
NET_OUT_PKT_RATE | \\NetworkInterface\\PacketsTransmitted | PACKETS_TRANSMITTED/3600 |
NET_IN_PKT_RATE | \\NetworkInterface\\PacketsReceived | PACKETS_RECEIVED/3600 |
NET_PKT_RATE | Derived | (PACKETS_RECEIVED + PACKETS_TRANSMITTED)/3600 |
NET_IN_ERROR_RATE | \\NetworkInterface\\TotalRxErrors | TOTAL_RX_ERRORS/3600 |
NET_OUT_ERROR_RATE | \\NetworkInterface\\TotalTxErrors | TOTAL_TX_ERRORS/3600 |
NET_ERROR_RATE | \\NetworkInterface\\TotalRxErrors | (TOTAL_RX_ERRORS + TOTAL_TX_ERRORS)/3600 |
Performance metrics for Windows virtual machines
BMC Helix Capacity Optimization metric | Azure metric | Formula |
|---|---|---|
CPU_UTIL_GUEST | \\Processor(_Total)\\% Processor Time | PERCENT_PROCESSOR_TIME/100 |
CPU_UTIL_SYSTEM | \\Processor(_Total)\\% Privileged Time | PERCENT_PRIVILEGED_TIME/100 |
CPU_UTIL_USER | \\Processor(_Total)\\% User Time | PERCENT_USER_TIME/100 |
CPU_MHZ | \\Processor Information(_Total)\\Processor Frequency | Not applicable |
MEM_VIRTUAL_USED_PCT | \\Memory\\% Committed Bytes In Use | PERCENT_COMMITTED_BYTES_IN_USE/100 |
MEM_FREE | \\Memory\\Available Bytes | Not applicable |
MEM_UTIL | \\Memory\\Available Bytes | (TOTAL_REAL_MEM - AVAILABLE_BYTES) |
MEM_VIRTUAL_ACTIVE | \\Memory\\Committed Bytes | Not applicable |
MEM_VIRTUAL_TOTAL | \\Memory\Commit Limit | Not applicable |
MEM_VIRTUAL_FREE | \\Memory\Commit Limit - \Memory\Committed Bytes | COMMIT_LIMIT - COMMITTED_BYTES |
MEM_CACHE_FAULTS | \\Memory\\Cache Faults/sec | Not applicable |
MEM_PAGE_FAULT_RATE | \Memory\Page Faults/sec | Not applicable |
MEM_PAGE_IN_RATE | \\Memory\\Page Reads/sec | Not applicable |
MEM_PAGE_RATE | \\Memory\Pages/sec | Not applicable |
MEM_PAGE_OUT_RATE | Derived | PAGES_PER_SEC - PAGE_READS_PER_SEC |
MEM_POOL_PAGED | \\Memory\Pool Paged Bytes | Not applicable |
MEM_NONPOOL_PAGED | \\Memory\Pool Nonpaged Bytes | Not applicable |
MEM_TRANSITION_FAULTS | \\Memory\Transition Faults/sec | Not applicable |
DISK_IO_RATE_GUEST | \\PhysicalDisk\\TransfersPerSecond | Not applicable |
DISK_IO_READ_RATE_GUEST | \\PhysicalDisk(_Total)\Disk Reads/sec | Not applicable |
DISK_IO_WRITE_RATE_GUEST | \\PhysicalDisk(_Total)\Disk Writes/sec | Not applicable |
DISK_TRANSFER_RATE_GUEST | \\PhysicalDisk(_Total)\Disk Bytes/sec | Not applicable |
DISK_READ_RATE_GUEST | \\PhysicalDisk(_Total)\Disk Read Bytes/sec | Not applicable |
DISK_WRITE_RATE_GUEST`` | \\PhysicalDisk(_Total)\Disk Write Bytes/sec | Not applicable |
LDISK_FREE | \\LogicalDisk(_Total)\\Free Megabytes | FREE_MEGABYTES*1024*1024 |
TOTAL_LDISK_USED | \\LogicalDisk(_Total)\\Free Megabytes | ((FREE_MEGABYTES*1024*1024)*100/ |
TOTAL_LDISK_UTIL | \\LogicalDisk(_Total)\\% Free Space | (100-LDISK_PERCENT_FREE_SPACE)/100 |