From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Reinecke Subject: Re: Supporto for EVA3000? Date: Thu, 08 Nov 2007 08:22:58 +0100 Message-ID: <4732B952.2030500@suse.de> References: <000101c82065$6e410600$cf42e3c1@pitagora.it> <20071107180321.GE28113@ether.msp.redhat.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20071107180321.GE28113@ether.msp.redhat.com> 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 Benjamin Marzinski wrote: > On Tue, Nov 06, 2007 at 12:08:59PM +0100, Domenico Viggiani wrote: >> Good morning, >> does anyone know if the old HP EVA3000 (HSV100) disk-array is supporte= d with >> dm-multipath shipped with Red Hat 4? >=20 > If the product name comes up as HSV100, then this version of the > firmware needs the storageworks hardware handler module to function opt= imally. > This is not available on the RHEL4 kernel. I have never actually used > one of these disk-arrays, but I believe that there is a firmware update= for the > EVA3000 that solves this problem. You should see the product name chang= e to > HSV110, and the device will be properly autoconfigured in RHEL4. >=20 > If for some reason you cannot update the firmware, I believe that you > can still use multipath with the device at a performance penalty. I > don't recall the best configuration for that scenario off the top of my > head. >=20 No, you can't. The ominous 'Storageworks handler' Ben referred to is actually the hp_sw hardware handler available in later versions. This firmware requires a 'START STOP UNIT' command to be send to the inactive path; the firmware will then activate it (and deactivate the old path). Hence you're pretty much stuck without it. So a firmware update would be your best option here. Cheers, Hannes --=20 Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg GF: Markus Rex, HRB 16746 (AG N=FCrnberg)