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Date:   Sun, 27 Mar 2022 19:05:12 -0700
From:   Marc MERLIN <marc@merlins.org>
To:     d tbsky <tbskyd@gmail.com>
Cc:     list Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: new drive is 4 sectors shorter, can it be used for swraid5 array?
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On Sun, Mar 27, 2022 at 04:40:38PM +0800, d tbsky wrote:
> Marc MERLIN <marc@merlins.org>
> > New drive is 4 sectors shorter, so I assume I can't use it as a replacement in my md5
> > array because it's 4 sectors too short, or does swraid5 not need the last few sectors
> > of a drive?
> 
>     4 sectors shorter are common for external hard drives (sold from
> seagate,toshiba,etc). if you attach the drive to internal sata port or
> normal usb enclosure(not sold from disk vendors),you will get back
> normal disk size. so maybe you want to check what connect to your
> disk.

OMG, using a USB adapter eats 4 setors? I had no idea...
Sure enough, I did connect the drives via USB for diagnosis since I had
run out of sata ports.

Thanks for the hint.
Marc
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