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The refsutil iometrics command allows you to query or set volume heat parameters for tracking input/output (IO) metrics on a ReFS (Resilient File System) volume. This tool helps monitor and manage the performance and usage patterns on the volume.
Syntax
refsutil iometrics <drive> <[/q]> | <[/s] [/st <seconds>] [/sp <seconds>] [/sg <number>]>
Parameters
| Parameters | Description |
|---|---|
<drive> |
Specifies the drive letter of the volume to be compressed in the format E:. |
/q |
Queries the current volume activity tracking settings. |
/s |
Configures the volume activity tracking settings. |
/st <seconds> |
Specifies how long in seconds the volume should track IO activity. |
/sp <seconds> |
Specifies how often in seconds the IO metrics should be tracked. |
/sg <number> |
Specifies the number of periods to track per volume tracking unit. |
ReFS enforces values for /st, /sp, and /sg to be within suitable ranges and adjusts them to the filesystem minimums if needed. These values can be omitted, in which case ReFS uses default settings. The current minimum values are:
/st: 3,600 seconds (1 hour)/sp: 10 seconds/sg: 5 periods
Examples
To query the volume activity tracking settings on the F: drive, run the command:
refsutil iometrics F: /q
To set the volume activity tracking settings on drive F: with default values, run the command:
refsutil iometrics F: /s
To set the volume activity tracking settings on drive F: to track IO activity for 604,800 seconds or 7 (seven) days, run the command:
refsutil iometrics F: /s /st 604800