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Block Devices

Block Devices Collector​

To collect information about all of the block devices on a host, use the blockDevices collector.

Parameters​

None.

Example Collector Definition​

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: block-devices
spec:
  hostCollectors:
    - blockDevices: {}

Included Resources​

The results of the blockDevices collector are stored in the host-collectors/system directory of the support bundle.

block_devices.json​

Example of the resulting JSON file:

{
   "name":"sda1",
   "kernel_name":"sda1",
   "parent_kernel_name":"sda",
   "type":"part",
   "major":8,
   "minor":1,
   "size":85782937088,
   "filesystem_type":"ext4",
   "mountpoint":"/",
   "serial":"",
   "read_only":false,
   "removable":false
},
{
   "name":"sda14",
   "kernel_name":"sda14",
   "parent_kernel_name":"sda",
   "type":"part",
   "major":8,
   "minor":14,
   "size":4194304,
   "filesystem_type":"",
   "mountpoint":"",
   "serial":"",
   "read_only":false,
   "removable":false
}

Block Devices Analyzer​

The blockDevices analyzer supports multiple outcomes. It accepts "<regex> <operator> <count>", for example "sdb > 0".

The following block devices are not counted:

  • Devices with a filesystem
  • Partitioned devices
  • Read-only devices
  • Loopback devices
  • Removable devices

Parameters​

includeUnmountedPartitions (Optional)​

Includes unmounted partitions in the analysis. Disabled by default.

minimumAcceptableSize (Optional)​

The minimum acceptable size to filter the available block devices during analysis. Disabled by default.

Example Analyzer Definition​

apiVersion: troubleshoot.sh/v1beta2
kind: SupportBundle
metadata:
  name: block-devices
spec:
  hostCollectors:
    - blockDevices: {}
  hostAnalyzers:
    - blockDevices:
        includeUnmountedPartitions: true
        minimumAcceptableSize: 10737418240 # 1024 ^ 3 * 10, 10GiB
        outcomes:
        - pass:
            when: ".* == 1"
            message: One available block device
        - pass:
            when: ".* > 1"
            message: Multiple available block devices
        - fail:
            message: No available block devices