I can't answer for Carl's reasons but mine were all about small file access and writethru. When you patch Linux VMs with software raid, the delete and replace of file inodes is very slow on software raid in comparison to hardware raid with battery backup. I was actually planning on demonstrating this at Penguins Unbound later this year. On Feb 27, 2014 12:51 PM, "T L" <tlunde at gmail.com> wrote: > Why not software raid? It is very unlikely that your system is CPU-bound. > Plus, the ability to move the drives to new hardware is much easier than if > they're tied to a specific proprietary RAID card's implementation. > > Thomas > On Feb 27, 2014 12:46 PM, "Carl Wilhelm Soderstrom" <chrome at real-time.com> > wrote: > >> I find myself clueless about the state of hardware again. >> >> It used to be that I recommended 3ware RAID controllers because: >> >> 1. they had good Linux drivers built into the kernel >> 2. they were reliable >> 3. they had a really good management tool suite under Linux >> >> However, it looks like 3ware has abandoned the low-end RAID market and the >> cheapest controller of theirs which I find on Newegg is ~$440. Gone are >> the >> days of $120 2-port controllers for desktop use. >> >> Does anyone have a recommendation for a hardware RAID controller to mirror >> drives for a desktop Linux box? >> >> I really don't want to go back to the days of software RAID. >> >> -- >> Carl Soderstrom >> Systems Administrator >> Real-Time Enterprises >> www.real-time.com >> _______________________________________________ >> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >> tclug-list at mn-linux.org >> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >> > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20140227/5123e59a/attachment.html>