But having a "fake" bios doing raid1 isnt' more stable/better than to emulate raid1 in software? however, thinking of benchmarks, the machine in question is a dual xeon with 512mb ram doing web,smtp,pop3 and a small mysql for 50 users. I think raid 1 with the linux driver will be more than excellent. However the main question remains, Why the adaptec 79xx driver does not "see" that I created a raid1 in the bios? why keeps showing me two "drives" instead of one? Cause that will mean that the linux 79xx is not "fully" compatible (ok, it is 99.999999% compatible) with the AIC-7901 Adaptec 320 with HostRAID (fake BIOS or not). Comments welcomed, On 10/29/05, Aleksandar Milivojevic <alex at milivojevic.org> wrote: > Erick Perez wrote: > > An INTEL Server motherboard model SE7501BR2 with an onboard Adaptec > > AIC7901 controller (with HostRAID) is not being recognized by CENTOS > > 4. > > The AIC79xx driver loads correctly, however it does not "see" the fact > > that I used the HostRAID onboard software to create a RAID 1 set. > > > > I went to the INTEL site and only found a driver for RHEL 3.0 and I > > was unable to find a driver on the adaptec site. > > > > The CENTOS4 installer gives me the option to create partitions, raids, etc. > > This is not what we want since creating a RAID by software it's > > supposed to be more slow that doing it hardware based right? > > > > Does the CENTOS4 support the AIC7901 with HostRAID or not? > > In Adaptec speak HostRAID is software RAID. What you have is not > hardware RAID controller. The card is really just a standard SCSI > controller with fake RAID BIOS. Create software RAID devices under > CentOS (and you'll get exactly the same thing as if configuring them in > BIOS and using Adaptec device driver). > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- ------------------------------------------- Erick Perez Linux User 376588 http://counter.li.org/ (Get counted!!!) Panama, Republic of Panama