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Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/README.md b/README.md index e6c580a..abb2cc0 100644 --- a/README.md +++ b/README.md @@ -134,7 +134,7 @@ The metrics correspond to the columns of `/proc/diskstats`: See the kernel's [Documentation/iostats.txt](https://www.kernel.org/doc/Documentation/iostats.txt) -for more details. The collector assumes the read/write totals are +file for more details. The collector assumes the read/write totals are reported using a sector size of 512 bytes. All metrics have one label, `device`, containing the device name from @@ -149,6 +149,9 @@ not mentioned on the exclude list are included. If the given value ends in `*`, it matches any string that begins with the part before the `*`; otherwise, the match must be exact. +By default, if the device is entirely unused (all metrics are 0), it's +omitted. Use `--diskstats-keep-unused` to include even those devices. + ### `filesystem` Metrics: |