If you have a quality HW raid controller with proper performance (and far from all have good performance) you cam definitely benefit from a battery backed up write cache on it, although the benefits will not be huge on raid 0.
Unless you get a really good price on that high performance HW raid with battery backup, it is probably not worth it for raid 0. When that is said, raid 5 is pretty speedy as well with a good controller with battery cache so don't rule that out if you have the controller anyway and may save you from some manual recover operations.. Regards, Terje On 28 Jun 2011, at 08:46, mcasandra <[email protected]> wrote: > Which one is preferred RAID0 or spreading data files accross various disks on > the same node? I like RAID0 but what would be the most convincing argument > to put additional RAID controller card in the machine? > > -- > View this message in context: > http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/RAID-or-no-RAID-tp6522904p6522904.html > Sent from the [email protected] mailing list archive at > Nabble.com.
