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Phil
Asked: 2015-10-07 23:48:41 +0800 CST

How to get the attached disk size on FreeBSD

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When I attach a disk to FreeBSD I can list any attached disks by doing:

[root@freenas] ~# sysctl kern.disks
kern.disks: xbd2 xbd1 ada0
[root@freenas] ~#

How can I then find out the size of each attached disk?

hard-drive

2 Answers

  1. Best Answer

    diskinfo -v ada0 if you just want to see disk size.

    If you want to use this info in some script, you can parse sysctl -n kern.geom.confxml output.

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  2. Geometry of each disk can be shown by fdisk ada0 utility.

    Disks used for filesystems are shown by mount with no args.

    Accessible capacity of the filesystem on a disk can be viewed by df -h <filesystem>

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