Re: USB3 with CentOS7 on R730

Nicole Hähnel <[email protected]> Mon, 25 Jul 2016 09:10:30 +0200
Newsgroups gmane.linux.hardware.dell.poweredge
Message-ID <[email protected]>
Am 25.07.2016 um 08:56 schrieb Andreas Haupt:
> Hi Nicole,
>
> On Mon, 2016-07-25 at 08:44 +0200, Nicole Hähnel wrote:
>> Speed test gives only 13MB/s:
>> dd count=500 bs=1M if=/dev/urandom of=/mnt/usbdisk/test
>>
>> 524288000 Bytes (524 MB) kopiert, 37,9013 s, 13,8 MB/s
>>
>>
>> Any experiences with this?
> /dev/urandom is a very bad source for running speed tests. Use /dev/zero
> instead.
>
> Cheers,
> Andreas


Hmm, you're right. Now I get 112MB/s.
But my nightly backup to usbdisk still takes many hours for 1,5TB.
So I have to look...

Thanks!
Nicole

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