tag:blogger.com,1999:blog-1841626496323335774.post1847454816797271216..comments2011-12-19T09:04:04.465-05:00Comments on blog.aarondelp.com: HP Blades Offer a 16GB DIMM, With a CatchAaron Delphttp://www.blogger.com/profile/04330656671495950454noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-1841626496323335774.post-56838583665442429482010-02-21T09:59:56.961-05:002010-02-21T09:59:56.961-05:00afidel - Interesting... Thank you very much for t...afidel - Interesting... Thank you very much for that find! I read Brian's articles but I missed that.<br /><br />I guess the big question is anyone really buying the 490 or the b250 that are memory I/O capped? In my experience that answer is no. The main reason my customers are interested in the BL490, b250, or HS22V is because of the number of DIMM slots. They want more memory at a Aaron Delphttp://www.blogger.com/profile/04330656671495950454noreply@blogger.comtag:blogger.com,1999:blog-1841626496323335774.post-4220968267943260842010-02-21T04:20:04.311-05:002010-02-21T04:20:04.311-05:00According to http://knudt.net/vblog/post/2009/10/0...According to http://knudt.net/vblog/post/2009/10/05/UCS-Boot-Camp-Day-1.aspx it's 6ns which is pretty significant considering it's nearly doubles the latency on a CAS7 chip.afidelhttp://www.blogger.com/profile/00865080730708643383noreply@blogger.comtag:blogger.com,1999:blog-1841626496323335774.post-12230088017583335902010-02-20T16:41:40.174-05:002010-02-20T16:41:40.174-05:00afidel - Have you seen a value attached to the lat...afidel - Have you seen a value attached to the latency score? I haven't seen one so far and I keep hearing this but I'm wondering what it really is.Aaron Delphttp://www.blogger.com/profile/04330656671495950454noreply@blogger.comtag:blogger.com,1999:blog-1841626496323335774.post-59638032060270062572010-02-15T17:41:05.068-05:002010-02-15T17:41:05.068-05:00UCS through the expander has a latency penalty so ...UCS through the expander has a latency penalty so you can't compare them just on bus speed. Not to mention that workloads that are memory I/O bound are basically only found in Database and HPC scenarios.afidelhttp://www.blogger.com/profile/00865080730708643383noreply@blogger.comtag:blogger.com,1999:blog-1841626496323335774.post-90456895425831289042010-02-07T16:00:02.221-05:002010-02-07T16:00:02.221-05:00Aaron, great post. As the Cookie Monster instille...Aaron, great post. As the Cookie Monster instilled in all of us as a ripe young age, the devil is in the details!Vaughn Stewarthttp://blogs.netapp.com/virtualstorageguy/noreply@blogger.comtag:blogger.com,1999:blog-1841626496323335774.post-430423560535890572010-02-06T16:47:33.425-05:002010-02-06T16:47:33.425-05:00Doh! I missed that! Thank you. I meant to say s...Doh! I missed that! Thank you. I meant to say something. Updating now.Aaron Delphttp://www.blogger.com/profile/04330656671495950454noreply@blogger.comtag:blogger.com,1999:blog-1841626496323335774.post-49487602696603678022010-02-06T16:03:27.120-05:002010-02-06T16:03:27.120-05:00Aaron,
Another bummer for the HP 16GB DIMM is tha...Aaron,<br /><br />Another bummer for the HP 16GB DIMM is that it only runs at 1066Mhz when have just (1) DIMM per channel, for 96GB.<br /><br />If you populate (2) 16GB DIMMs per channel the memory system will run at just 800Mhz. So yes, you can have 192GB of RAM in an HP blade with the 16GB DIMMs, but it comes with a significant performance penalty.<br /><br />For a high performance memory Brad Hedlundhttp://www.internetworkexpert.orgnoreply@blogger.com