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  1. Documentation
  2. DOCS-14921

Investigate changes in SERVER-28953: Capture df (disk full) statistics in FTDC

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      Downstream Change Summary

      Docs to document that there is a new FTDC element on linux only platform only:

      db.runCommand("getDiagnosticData").data.systemMetrics.mounts
{
	"/dev" : {
		"capacity" : NumberLong("33628246016"),
		"available" : NumberLong("33628246016"),
		"free" : NumberLong("33628246016")
	},
	"/run" : {
		"capacity" : NumberLong("6736269312"),
		"available" : NumberLong("6731268096"),
		"free" : NumberLong("6731268096")
	},
	"/" : {
		"capacity" : NumberLong("840696987648"),
		"available" : NumberLong("494027931648"),
		"free" : NumberLong("494027931648")
	},
	"/dev/shm" : {
		"capacity" : NumberLong("33681342464"),
		"available" : NumberLong("32035008512"),
		"free" : NumberLong("32035008512")
	},
	"/run/lock" : {
		"capacity" : 5242880,
		"available" : 5238784,
		"free" : 5238784
	},
...

      Description of Linked Ticket

      As we now collect also system metrics in the diagnostic data, it would be sometimes useful to know how full a disk was (or, in particular, whether it was 100% full).

      Edit (JamesB): this would be most useful as <bytes available> / <bytes total>, not a percentage

            Assignee:
            ian.fogelman@mongodb.com Ian Fogelman
            Reporter:
            backlog-server-pm Backlog - Core Eng Program Management Team
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              Created:
              Updated:
              Resolved:
              2 years, 13 weeks, 2 days ago