freebsd-questions Digest, Vol 717, Issue 4

[J.B.]

On 03/08/2018 04:00 AM, freebsd-questions-request at freebsd.org wrote:
> Message: 16
> Date: Wed, 7 Mar 2018 20:55:54 -0800
> From: "Jack L."<xxjack12xx at gmail.com>
> To: "J.B."<non.euc.geo.1854 at gmail.com>
> Cc:"freebsd-questions at freebsd.org"  <freebsd-questions at freebsd.org>
> Subject: Re: How to prevent HDD spin-down.
> Message-ID:
> 	<CALeGphy2N7ivgQQK8t9bUf1NpkeMm0VWRUWFU=Q2Tv56eegRMA at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
>
> I use this to make those seagates quit "chirping"
>
> /sbin/camcontrol cmd drive# -a "EF 85 00 00 00 00 00 00 00 00 00 00"
>
> On Tue, Mar 6, 2018 at 1:19 PM, J.B.<non.euc.geo.1854 at gmail.com>  wrote:
>
>> On 03/06/2018 04:00 AM,freebsd-questions-request at freebsd.org  wrote:
>>
>>> Re: How to prevent HDD spin-down.
>>>
>> Thank you to everyone for your helpful tips and suggestions. You make
>> FreeBSD great.:)
>>
>> I tried the camcontrol suggestion first since it didn't require installing
>> anything, but it didn't seem to work. Tried sysutils/ataidle next since it
>> allows keeping spindown but with a reasonable timeout, and it seems to have
>> worked perfectly: ataidle -P 127 /dev/ada0.
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Interesting, thanks. (`man 3 cam_cdbparse` has the command and data 
specification syntax).