devmdb(mongod-2.2.1) voip> db.stats(); { "db": "voip", "collections": 7, "objects": 40068841, "avgObjSize": 1171.8874335297096, "dataSize": 46956171244, "storageSize": 53754564288, "numExtents": 67, "indexes": 19, "indexSize": 18961975424, "fileSize": 79352037376, "nsSizeMB": 16, "ok": 1 } devmdb(mongod-2.2.1) voip> db.system.profile.validate(true); { "ns": "voip.system.profile", "capped": true, "max": 2147483647, "firstExtent": "5:20134000 ns:voip.system.profile", "lastExtent": "5:20134000 ns:voip.system.profile", "extentCount": 1, "extents": [ { "loc": "5:20134000", "xnext": "null", "xprev": "null", "nsdiag": "voip.system.profile", "size": 1052672, "firstRecord": "5:2014ff08", "lastRecord": "5:2014fc80" } ], "datasize": 1024476, "nrecords": 1719, "lastExtentSize": 1052672, "padding": 1, "firstExtentDetails": { "loc": "5:20134000", "xnext": "null", "xprev": "null", "nsdiag": "voip.system.profile", "size": 1052672, "firstRecord": "5:2014ff08", "lastRecord": "5:2014fc80" }, "valid": false, "errors": [ "exception during validate" ], "advice": "ns corrupt, requires repair", "ok": 1 }