Drew, We have Cloudera Hadoop Reference Architectures based on the R720 / R7200xd and the C8000 series which are fully supported by Crowbar, and there are also customers running on many other configurations without Crowbar.
We never see the onboard SATA controllers used for Hadoop data nodes. They're good enough for boot drives, but really aren't intended for the sort of loads HDFS puts on them. The most common controllers with R Series are the H710 and the LSI 9207, either of which gives you 6 Gb/s SATA or SAS. With the R720xd, we use either 12 x 3.5" drives or 24 x 2.5" drives. The LSI 9207 was recently certified on the R720, and is very popular right now. Prior to that, the H710 was the preferred option. Crowbar supports both. The LSI9207 support hasn't made in into the hadoop branches yet, but is in progress. mike On 10/23/2013 1:32 PM, Jakesch, Simon wrote: > Drew, > > while this list generally isn’t a sales channel, I’ve asked around and > it appears there’s really no configuration that supports more than 6 > drives on the internal SATA controller. There is a small chance that the > C8220x supports 8 (you should ask a rep). > > The best alternative we generally see customers pick is the LSI 9207 on > the R720XD. It’s basically a JBOD style controller which is fairly > inexpensive > (http://www.lsi.com/downloads/Public/Host%20Bus%20Adapters/LSI_SAS9207-8i_UG.pdf). > We’ve recently added support for it to Crowbar as well. > > Hope this helps, > > Simon > > *From:*crowbar-bounces *On Behalf Of *Drew Weaver > *Sent:* Wednesday, October 23, 2013 9:00 AM > *To:* crowbar > *Subject:* [Crowbar] Cloudera hadoop deployment hardware inquiry > > Howdy, > > This isn’t really just specific to crowbar but we want to use crowbar to > deploy a Cloudera Hadoop cluster. > > The problem which we are running into is that the Dell hardware that we > are targeting (the R720) does not have the ability to direct attach hard > drives to the on-board SATA and as a result we are having to pay > $400-$500 per node extra for a RAID controller which we don’t want. > > Does anyone who has used crowbar in the past to build Cloudera Hadoop > clusters know of a Dell server that is supported by Crowbar that has the > ability to have 8x hard drives directly attached to the onboard SATA? > > I’m currently buying servers from the PowerEdge space but I suppose > there may be something in the Cxxxx series? > > Thanks and sorry for list noise. > > -Drew > _______________________________________________ Crowbar mailing list [email protected] https://lists.us.dell.com/mailman/listinfo/crowbar For more information: http://crowbar.github.com/
