[
    {
      "device": "drive-sata0-0-0",
      "parent": {
        "stats": {
          "flush_total_time_ns": 0,
          "wr_highest_offset": 0,
          "wr_total_time_ns": 0,
          "failed_wr_operations": 0,
          "failed_rd_operations": 0,
          "wr_merged": 0,
          "wr_bytes": 0,
          "timed_stats": [

          ],
          "failed_flush_operations": 0,
          "account_invalid": false,
          "rd_total_time_ns": 0,
          "flush_operations": 0,
          "wr_operations": 0,
          "rd_merged": 0,
          "rd_bytes": 0,
          "invalid_flush_operations": 0,
          "account_failed": false,
          "rd_operations": 0,
          "invalid_wr_operations": 0,
          "invalid_rd_operations": 0
        },
        "node-name": "#block020"
      },
      "stats": {
        "flush_total_time_ns": 0,
        "wr_highest_offset": 0,
        "wr_total_time_ns": 0,
        "failed_wr_operations": 0,
        "failed_rd_operations": 0,
        "wr_merged": 0,
        "wr_bytes": 0,
        "timed_stats": [

        ],
        "failed_flush_operations": 0,
        "account_invalid": true,
        "rd_total_time_ns": 290083,
        "flush_operations": 0,
        "wr_operations": 0,
        "rd_merged": 0,
        "rd_bytes": 512,
        "invalid_flush_operations": 0,
        "account_failed": true,
        "idle_time_ns": 74812730779,
        "rd_operations": 1,
        "invalid_wr_operations": 0,
        "invalid_rd_operations": 0
      },
      "backing": {
        "parent": {
          "stats": {
            "flush_total_time_ns": 0,
            "wr_highest_offset": 0,
            "wr_total_time_ns": 0,
            "failed_wr_operations": 0,
            "failed_rd_operations": 0,
            "wr_merged": 0,
            "wr_bytes": 0,
            "timed_stats": [

            ],
            "failed_flush_operations": 0,
            "account_invalid": false,
            "rd_total_time_ns": 0,
            "flush_operations": 0,
            "wr_operations": 0,
            "rd_merged": 0,
            "rd_bytes": 0,
            "invalid_flush_operations": 0,
            "account_failed": false,
            "rd_operations": 0,
            "invalid_wr_operations": 0,
            "invalid_rd_operations": 0
          },
          "node-name": "#block224"
        },
        "stats": {
          "flush_total_time_ns": 0,
          "wr_highest_offset": 0,
          "wr_total_time_ns": 0,
          "failed_wr_operations": 0,
          "failed_rd_operations": 0,
          "wr_merged": 0,
          "wr_bytes": 0,
          "timed_stats": [

          ],
          "failed_flush_operations": 0,
          "account_invalid": false,
          "rd_total_time_ns": 0,
          "flush_operations": 0,
          "wr_operations": 0,
          "rd_merged": 0,
          "rd_bytes": 0,
          "invalid_flush_operations": 0,
          "account_failed": false,
          "rd_operations": 0,
          "invalid_wr_operations": 0,
          "invalid_rd_operations": 0
        },
        "node-name": "#block320"
      },
      "node-name": "#block132"
    },
    {
      "device": "drive-sata0-0-1",
      "parent": {
        "stats": {
          "flush_total_time_ns": 0,
          "wr_highest_offset": 0,
          "wr_total_time_ns": 0,
          "failed_wr_operations": 0,
          "failed_rd_operations": 0,
          "wr_merged": 0,
          "wr_bytes": 0,
          "timed_stats": [

          ],
          "failed_flush_operations": 0,
          "account_invalid": false,
          "rd_total_time_ns": 0,
          "flush_operations": 0,
          "wr_operations": 0,
          "rd_merged": 0,
          "rd_bytes": 0,
          "invalid_flush_operations": 0,
          "account_failed": false,
          "rd_operations": 0,
          "invalid_wr_operations": 0,
          "invalid_rd_operations": 0
        },
        "node-name": "#block487"
      },
      "stats": {
        "flush_total_time_ns": 0,
        "wr_highest_offset": 0,
        "wr_total_time_ns": 0,
        "failed_wr_operations": 0,
        "failed_rd_operations": 0,
        "wr_merged": 0,
        "wr_bytes": 0,
        "timed_stats": [

        ],
        "failed_flush_operations": 0,
        "account_invalid": true,
        "rd_total_time_ns": 0,
        "flush_operations": 0,
        "wr_operations": 0,
        "rd_merged": 0,
        "rd_bytes": 0,
        "invalid_flush_operations": 0,
        "account_failed": true,
        "rd_operations": 0,
        "invalid_wr_operations": 0,
        "invalid_rd_operations": 0
      },
      "backing": {
        "parent": {
          "stats": {
            "flush_total_time_ns": 0,
            "wr_highest_offset": 0,
            "wr_total_time_ns": 0,
            "failed_wr_operations": 0,
            "failed_rd_operations": 0,
            "wr_merged": 0,
            "wr_bytes": 0,
            "timed_stats": [

            ],
            "failed_flush_operations": 0,
            "account_invalid": false,
            "rd_total_time_ns": 0,
            "flush_operations": 0,
            "wr_operations": 0,
            "rd_merged": 0,
            "rd_bytes": 0,
            "invalid_flush_operations": 0,
            "account_failed": false,
            "rd_operations": 0,
            "invalid_wr_operations": 0,
            "invalid_rd_operations": 0
          },
          "node-name": "#block692"
        },
        "stats": {
          "flush_total_time_ns": 0,
          "wr_highest_offset": 0,
          "wr_total_time_ns": 0,
          "failed_wr_operations": 0,
          "failed_rd_operations": 0,
          "wr_merged": 0,
          "wr_bytes": 0,
          "timed_stats": [

          ],
          "failed_flush_operations": 0,
          "account_invalid": false,
          "rd_total_time_ns": 0,
          "flush_operations": 0,
          "wr_operations": 0,
          "rd_merged": 0,
          "rd_bytes": 0,
          "invalid_flush_operations": 0,
          "account_failed": false,
          "rd_operations": 0,
          "invalid_wr_operations": 0,
          "invalid_rd_operations": 0
        },
        "node-name": "#block771"
      },
      "node-name": "#block548"
    }
  ]