On 21 Sep, Johan Nielsen wrote:
Single / dual / X-cpu systems Mainboard RAM Chipset All the info you'd like to add
We've got a ton (4x66 blades from Racksaver... er.. Verari, with another rack of 66 blades on order) of opteron hosts. - Dual cpu, most 248s, newest rack going to be 250s. - All Arima motherboards.. new ones have newer bcm5703 chipset. - Almost all 8gig (33 16gig) - Arima HDAMA chipset, new 1.83 (I think) BIOS on new ones. Only real problem we've had so far is that one of the earier revs had an issue if ecc and memory interlacing was turned on. 32bit image would infinitely reboot itself. Newer bios rev fixed that. Sorry, I don't remember exact rev with issues. We're actually running most hosts in 32bit mode now (only 33, the 16gig ones in 64bit mode, SLES9) since most apps the engineers we support use on linux are 32bit. As time goes on that's changing.. more and more amd64 binaries coming out every month. Best thing about a64/opterons IMO? They still tend to win or tie Xeons in 32bit mode.. and have the upgradability to 64bit when you're ready. We want all our compute hosts to be 64bit eventually (yes we have a few itaniums too) so that linux will be just like solaris in the compute environment: All 64bit, but natively supports 32bit legacy apps too. Oh, other problem we've had, which few will.. is afs. We use AFS for all our app installs. The amd64_linux26 version is way behind where openafs is concerned, but I've found that the latest arla and heimdal are a good fillin for now... and we may end up just sticking with it if openafs doesn't catch up soon. -- Mike Marion-Unix SysAdmin/Staff Engineer-http://www.qualcomm.com ftp://127.0.0.1 ..... That site sucks. I've already got all of that stuff!