miguelmedalha at sapo.pt wrote: > I need to install CentOS 5.2 on a IBM Server xSeries 226, which comes > with a IBM SERVERAID 6i RAID card. I think it is not a true hardware > RAID card. I has, nevertheless, an interesting feature: 128MB of cache > with battery backup. > > I launched the CentOS boot DVD and CentOS correctly identified the > card and the RAID 5 array as configured by the controller's BIOS. > > My question now is: what would be the better way to implement RAID 5 > on this server? Should I use the detected array and respective driver > or should I delete the array and go for Linus Software RAID? > > If both solutions are in fact Software RAID, is there any particular > reason to prefer one of the methods? > > I know that Linux RAID will create a universal, more compatible array, > readable on any Linux machine. But is there some other reason that > makes it preferrable to use the SERVERAID driver provided by CentOS? > Is it optimized in any way that recommends its use? > > Will the controller still make use of its cache and battery backup if > configured as a plain SCSI controller with Linux Software RAID? > > I hope that some more experienced list member can ellucidate me on this. > > Thank you! > > PS - The machine is powered by a Intel P4 Xeon processor served by > 2.5GB of RAM. The disks are 3 IBM 10K rpm SCSI 320 with 73 GB each. > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Hi Miguel, FWIW I have been running an IBM e server 346 with 6 73GB disks in two RAID volumes using the SERVERAID drivers for 3 years with no problems - performance is mucj better than my development system that used single - non-rad disks for various partitions. ChrisG