From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roman Mamedov Subject: Re: Sleepy drives and MD RAID 6 Date: Tue, 12 Aug 2014 09:29:01 +0600 Message-ID: <20140812092901.60f007e6@natsu> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/YpC55XmwizsMml/PSNxj3oE"; protocol="application/pgp-signature" Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Adam Talbot Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids --Sig_/YpC55XmwizsMml/PSNxj3oE Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Mon, 11 Aug 2014 18:03:17 -0700 Adam Talbot wrote: > I need help from the Linux RAID pros. >=20 > To make a very long story short; I have a 7 disk in a RAID 6 array. I > put the drives to sleep after 7 minutes of inactivity. It is well known that repeatedly spinning a drive down/up is absolutely the worst possible thing you can do to it, from a long term reliability standpo= int. So my personal suggestion would be to reconsider if you really want this. T= he power consumption from 7 spinning drives with no access should be no higher than 60-70 watt; IMHO saving that amount, is not something that's worth ris= king your disks and data for. --=20 With respect, Roman --Sig_/YpC55XmwizsMml/PSNxj3oE Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAlPpif0ACgkQTLKSvz+PZwj5XwCfYXkANxK59mhr0eelVWlKXiRM XUMAnjQBm5Bwa2T3Tei5jqj2zhF77Tzj =Ke5n -----END PGP SIGNATURE----- --Sig_/YpC55XmwizsMml/PSNxj3oE--