From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jakov Sosic Subject: Re: Too many paths from multipath? Date: Wed, 02 Dec 2009 18:26:04 +0100 Message-ID: <1259774764.2177.9.camel@localhost> References: <4B168B7F.6060307@eib.org> Reply-To: jsosic@srce.hr, device-mapper development Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4B168B7F.6060307@eib.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids On Wed, 2009-12-02 at 16:45 +0100, Jose Nuno Neto wrote: > I have 2 HBAs connected to one LUN on a Hitachi Storage. Only two > connections have been zoned If one connection goes to one switch, and that switch is connected to two controllers on the storage, then you'll see two paths on that HBA in your host. If you have two HBA's and second is connected to second switch, which is also connected to two controllers of the stroage, then you'll see 4 of them. That is the situation in my company. It goes like this: ________Hitachi controller0 / HOST----switch0 \ \_______Hitachi controller1 -- | Jakov Sosic | ICQ: 28410271 | PGP: 0x965CAE2D | ================================================================= | |