From: "Rainer Fügenstein" <rfu@oudeis.org>
To: linux-raid@vger.kernel.org
Subject: SATA start unit command?
Date: Mon, 18 Mar 2013 00:30:50 +0100 [thread overview]
Message-ID: <103777438.20130318003050@oudeis.org> (raw)
hi,
for some reasons I need to keep power consumption at startup as low as
possible. since the server is booting from SSD, it is possible to send
a "start unit" (or similar) command to all SATA drives early in the
init process.
as far as I've searchengined, the drives and the SATA controller need
to support this feature. but my assumption is that when the drives are
not needed at startup (since they would be started by the OS), the
controller won't need to support "start unit". what is your
experience on this matter?
drives in question are WD Green 3TB drives (WDC WD30EZRX-00DC0B0), the
controllers at hand are a promise SATA 300 TX4 (don't laugh ;-) ) and
a supermicro AOC-SAT2-MV8.
tnx.
next reply other threads:[~2013-03-17 23:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-17 23:30 Rainer Fügenstein [this message]
2013-03-18 17:32 ` SATA start unit command? Piergiorgio Sartor
[not found] ` <CAD9gYJLkpmgSY1_U=1H6b+oJJB_R60cHKqs2NCY4wkRL9xmu5w@mail.gmail.com>
2013-03-19 20:09 ` Re[2]: " Rainer Fügenstein
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