| `minio_system_drive_used_inodes`               | Total used inodes on a drive. <br><br>Type: gauge                                       | `drive`, `set_index`, `drive_index`, `pool_index`, `server`        |

          "legendFormat": "Free [{{drive}}]",
          "refId": "C"
        }
      ],
      "title": "Drive Usage",
      "type": "timeseries"
    },
    {
      "datasource": {
        "type": "prometheus",
        "uid": "${DS_PROMETHEUS}"
      },
      "description": "",
      "fieldConfig": {
        "defaults": {
          "color": {
            "mode": "palette-classic"
          },

		readsPerSec:       "Reads per second on a drive",
		writesPerSec:      "Writes per second on a drive",
		readsKBPerSec:     "Kilobytes read per second on a drive",
		writesKBPerSec:    "Kilobytes written per second on a drive",
		readsAwait:        "Average time for read requests to be served on a drive",
		writesAwait:       "Average time for write requests to be served on a drive",

| `minio_node_drive_total_inodes`      | Total inodes on a drive.                                 |
| `minio_node_drive_used_inodes`       | Total inodes used on a drive.                            |
| `minio_node_drive_reads_per_sec`     | Reads per second on a drive.                             |
| `minio_node_drive_reads_kb_per_sec`  | Kilobytes read per second on a drive.                    |

		storageLogIf(GlobalContext, fmt.Errorf("unable to rename (%s -> %s) %w, drive may be faulty, please investigate",
			pathJoin(diskPath, minioMetaTmpBucket),
			tmpOld,
			osErrToFileErr(err)))
	}

	if err := mkdirAll(pathJoin(diskPath, minioMetaTmpDeletedBucket), 0o777, diskPath); err != nil {
		storageLogIf(GlobalContext, fmt.Errorf("unable to create (%s) %w, drive may be faulty, please investigate",
			pathJoin(diskPath, minioMetaTmpBucket),

	if len(filteredDisks) != len(erasureDisks) {
		t.Errorf("Unexpected number of drives: %d", len(filteredDisks))
	}
	for diskIndex, disk := range filteredDisks {
		if diskIndex == 0 && disk != nil {
			t.Errorf("Drive not filtered as expected, drive: %d", diskIndex)
		}
		if diskIndex != 0 && disk == nil {
			t.Errorf("Drive erroneously filtered, driveIndex: %d", diskIndex)
		}
	}

	// The global subnet config
	globalSubnetConfig subnet.Config

	// The global callhome config
	globalCallhomeConfig callhome.Config

	// The global drive config
	globalDriveConfig drive.Config

	// Global server's network statistics
	globalConnStats = newConnStats()

	// Global HTTP request statistics
	globalHTTPStats = newHTTPStats()

			return fmt.Errorf("%s drive is already being used in another erasure deployment. (Number of drives specified: %d but the number of drives found in the %s drive's format.json: %d)",
				disks[i], len(formats), humanize.Ordinal(i+1), len(formatErasure.Erasure.Sets)*len(formatErasure.Erasure.Sets[0]))
		}
		if len(formatErasure.Erasure.Sets[0]) != setDriveCount {

			// Bucket or prefix/directory not found
			hr.Before.Drives[i] = madmin.HealDriveInfo{Endpoint: drive, State: madmin.DriveStateMissing}
			hr.After.Drives[i] = madmin.HealDriveInfo{Endpoint: drive, State: madmin.DriveStateMissing}
		default:
			hr.Before.Drives[i] = madmin.HealDriveInfo{Endpoint: drive, State: madmin.DriveStateCorrupt}
			hr.After.Drives[i] = madmin.HealDriveInfo{Endpoint: drive, State: madmin.DriveStateCorrupt}
		}
	}

			}
		}
	case config.DriveSubSys:
		driveConfig, err := drive.LookupConfig(s[config.DriveSubSys][config.Default])
		if err != nil {
			configLogIf(ctx, fmt.Errorf("Unable to load drive config: %w", err))
		} else {
			if err = globalDriveConfig.Update(driveConfig); err != nil {
				configLogIf(ctx, fmt.Errorf("Unable to update drive config: %v", err))
			}
		}
	case config.BrowserSubSys: