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logical disk: Fix metrics for non drive letter disks #1498

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merged 5 commits into from
Jul 23, 2024
Merged

logical disk: Fix metrics for non drive letter disks #1498

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caec15b
logical disk: Fix metrics for non drive letter disks
jkroepke May 17, 2024
a10ef15
fix e2e
jkroepke May 18, 2024
f2c14ae
Add disk id to logical disk
jkroepke May 18, 2024
0b5ddc8
Using Win32 API instead WMI
jkroepke May 18, 2024
f87e9b3
Merge branch 'master' into fix/disk
jkroepke Jun 15, 2024
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11 changes: 11 additions & 0 deletions docs/collector.logical_disk.md
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ If given, a disk needs to *not* match the exclude regexp in order for the corres

Name | Description | Type | Labels
-----|-------------|------|-------
`windows_logical_disk_info` | A metric with a constant '1' value labeled with logical disk information | gauge | `disk`,`filesystem`,`serial_number`,`volume`,`volume_name`,`type`
`windows_logical_disk_requests_queued` | Number of requests outstanding on the disk at the time the performance data is collected | gauge | `volume`
`windows_logical_disk_avg_read_requests_queued` | Average number of read requests that were queued for the selected disk during the sample interval | gauge | `volume`
`windows_logical_disk_avg_write_requests_queued` | Average number of write requests that were queued for the selected disk during the sample interval | gauge | `volume`
Expand All @@ -36,6 +37,7 @@ Name | Description | Type | Labels
`windows_logical_disk_size_bytes` | Total size of the disk in bytes (not real time, updates every 10-15 min) | gauge | `volume`
`windows_logical_disk_idle_seconds_total` | Seconds the disk was idle (not servicing read/write requests) | counter | `volume`
`windows_logical_disk_split_ios_total` | Number of I/Os to the disk split into multiple I/Os | counter | `volume`
`windows_logical_disk_readonly` | Whether the logical disk is read-only | gauge | `volume`

### Warning about size metrics
The `free_bytes` and `size_bytes` metrics are not updated in real time and might have a delay of 10-15min.
Expand All @@ -47,6 +49,15 @@ Query the rate of write operations to a disk
rate(windows_logical_disk_read_bytes_total{instance="localhost", volume=~"C:"}[2m])
```

Logical Volume information
```
windows_logical_disk_info{disk_id="0",filesystem="",serial_number="",type="",volume="HarddiskVolume2",volume_name=""} 1
windows_logical_disk_info{disk_id="0",filesystem="",serial_number="",type="",volume="HarddiskVolume3",volume_name=""} 1
windows_logical_disk_info{disk_id="0",filesystem="NTFS",serial_number="668EEC37",type="fixed",volume="C:",volume_name="Windows"} 1
windows_logical_disk_info{disk_id="1",filesystem="NTFS",serial_number="50AE953B",type="fixed",volume="D:",volume_name="Temporary Storage"} 1
windows_logical_disk_info{disk_id="1",filesystem="ReFS",serial_number="C69B59AD",type="fixed",volume="G:",volume_name="Volume"} 1
```

## Useful queries
Calculate rate of total IOPS for disk
```
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