Ext4 Available Space
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  1. #1
    Join Date
    Nov 2016
    Cape Canaveral
    Windows 7 Firefox 61.0

    Ext4 Available Space


    Are there any charts or formulas to indicate how much available space a drive should have using Ext4?

    I am asking as I was provisioned a 6.5 terabyte drive (showing as 6.5 terabytes using lsblk). After partitioning it showed 5.9 terabytes while the disk shows 6.5 terabytes.

    Commands Used:
    parted /dev/sdb
    (parted) mklabel gpt
    (parted) unit TB
    (parted) mkpart primary 0.00TB 6.50TB
    (parted) print
    (parted) quit

    Then after mkfs.ext4 /dev/sdb1 and mounting as /u01, df -h shows 5.6TB available.

    I have created many 3-4 terabyte drives and dont remember it using this much overhead.

    Is this right? If not what can you recommend to use Ext4 for this disk?


    Last edited by micahel8773; 10th August 2018 at 08:01 PM.

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