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Date:      Fri, 16 Sep 2016 09:37:03 +0700
From:      Olivier Nicole <olivier2553@gmail.com>
Cc:        "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org>
Subject:   Re: Best kind of hard drive for heavy use?
Message-ID:  <CA%2Bg%2BBviQJhXb4GSSDXJNzdv6mZiCZJHO-65kz2foGmTBY-AbuA@mail.gmail.com>
In-Reply-To: <B8299717-8CDA-4F86-A98C-2A0D0AF7AD37@gmail.com>
References:  <42.56.05022.D3A48D75@dnvrco-oedge02> <20160914120349.76a015cd@gumby.homeunix.com> <20160914175449.185d12b0@archlinux.localdomain> <20160914221954.00fb1d56@gumby.homeunix.com> <20160915013848.5564c238@archlinux.localdomain> <CAOyJeZTzo4Kh9OaKQk6_-6qB8imHbGGMgT53DNK0%2BNgS-HR37g@mail.gmail.com> <20160915140856.24af27ca@gumby.homeunix.com> <20160915155254.768f6f70@archlinux.localdomain> <20160915161026.62dffff7@gumby.homeunix.com> <20160915172446.7b018b87@archlinux.localdomain> <20160915190814.346f753d@gumby.homeunix.com> <B8299717-8CDA-4F86-A98C-2A0D0AF7AD37@gmail.com>

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Hi,

I have been reading the thread and have some concerns. My backup
machine uses some recent, consumer grade, disks (it's better than
tapes anyway).

How can I detect if a disk is effectively stopped or not?

I have found the command
catcontrol cmd ada0 -a "E5 00 00 00 00 00 00 00 00 00 00 00" -r -
but how to know it is reporting the state of the drive and not the
state the driver assumes the drive to be?

TIA,

Olivier



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