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Block Devices

Collect and analyze information about the host system 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 “ ”, 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
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