Diskio documentation update

[voipoclay (Clay Gorman)]

https://www.elastic.co/guide/en/beats/metricbeat/current/metricbeat-metricset-system-diskio.html

metricset.name should be diskio and not disk. This is at least what I am seeing in my data.

[andrewkroh]

Thanks, I opened a PR to change it. https://github.com/elastic/beats/pull/2436

[voipoclay (Clay Gorman)]

awesome thanks.

Also will paste entire document for reference

  "_source": {
               "system": {
                  "diskio": {
                     "read": {
                        "bytes": 43279459328,
                        "count": 7668326,
                        "time": 44463459
                     },
                     "write": {
                        "count": 13894693,
                        "time": 405385043,
                        "bytes": 4643811090432
                     },
                     "io": {
                        "time": 74959958
                     },
                     "serial_number": "WDC_WD5003ABYX-01WERA0_WD-WMAYP1",
                     "name": "sda6"
                  }
               },
               "metricset": {
                  "rtt": 6123,
                  "module": "system",
                  "name": "diskio"
               },
               "beat": {
                  "name": "------",
                  "hostname": "------"
               },
               "@timestamp": "2016-09-01T21:20:07.458Z",
               "type": "metricsets",
               "@version": "1"
            },

[ruflin]

Thanks for the data. As some more data.json were imcomplete I opened the PR here: https://github.com/elastic/beats/pull/2465 Hopefully this means all data.json are up-to-date in the future.