From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John Stoffel" Subject: Re: Mixed controllers on JBOD Raid 6? Date: Thu, 2 Jul 2015 15:41:42 -0400 Message-ID: <21909.37878.786629.199118@quad.stoffel.home> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Another Sillyname Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Another> I'm looking at an Asus Maximus Vii Gene motherboard which has Another> 8 SATA controller connectors.....6 Intel and 2 other (can't Another> remember at the moment). Another> Are there any projected issues or concerns about making a 8 Another> Drive RAID6 array where I'm using mixed controllers? I tried using this for a while, but once I ran out of ports as I added drives, I ended up getting: 02:00.0 Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon] (rev 03) And putting that into my system and hanging most, if not all of my data drives off that sucker. I did this so that my RAID1 boot volumes wouldn't move around and get mixed up, and also so that I got more channels and stayed away from semi-crappy (maybe all crappy) dual/quad port SATA SIL chips. I forget the exact brands. But in any case, if you can, I'd recommended that dedicated card, or a pair of them, so that you get nice fast speed, and the warm fuzzy feeling that your boot drives won't wander around in boot order detection much. John