Dells (at least the 1950 and 2950) come with the Perc5, which is basically just the LSI MegaRAID. The units I have come with a 256MB BBU, I'm not sure if it's upgradeable, but it looks like a standard DIMM in there... I posted some dd and bonnie++ benchmarks of a 6-disk setup a while back on a 2950, so you might search the archive for those numbers if you're interested- you should be able to get the same or better from a similarly equipped LSI setup. I don't recall if I posted pgbench numbers, but I can if that's of interest. Dell's probably not the best performance you can get for the money, and if you're not running a supported Linux distro, you might have to do a little cajoling to get support from Dell (though in my experience, it's not too difficult to get them to fix failed hw regardless of the OS), but other than that I haven't had too many issues. HTH, Bucky > -----Original Message----- > From: pgsql-performance-owner@xxxxxxxxxxxxxx [mailto:pgsql-performance- > owner@xxxxxxxxxxxxxx] On Behalf Of Joshua D. Drake > Sent: Tuesday, November 21, 2006 9:38 PM > To: Jeff Frost > Cc: Luke Lonergan; pgsql-performance@xxxxxxxxxxxxxx > Subject: Re: [PERFORM] availability of SATA vendors > > > > > Don't count out LSI either. They make a great SATA controller based > off > > > their very well respected SCSI controller. > > > > Interesting. Does it perform as well as the ARECAs > > I don't know if it performs as well as the ARECAs but I can say, I have > never had a complaint. > > > and how much BBU cache can > > you put in it? > > Yes it support BBU and the max cache depends on the card. > > 4 drive model, comes with a static 64 megs > 8 drive model, comes with a static 128 megs > > I don't know if they are expandable but keep. > > > > Oh, does it use the good ole megaraid_mbox driver as well? > > > > Yeah it uses the long standing megaraid, stable as all get out and fast > driver :) > > Sincerely, > > Joshua D. Drake > > > -- > > === The PostgreSQL Company: Command Prompt, Inc. === > Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 > Providing the most comprehensive PostgreSQL solutions since 1997 > http://www.commandprompt.com/ > > Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: Don't 'kill -9' the postmaster
