On 05.02.2014 19:11, Jeff Siddall wrote: > On 02/05/2014 11:58 AM, Steffen Schaumburg wrote: >> Since the i7 (almost certainly) cannot have ECC memory I'd certainly >> think twice about using that for a server, or for anything else that's >> important for that matter. Google published a study into memory >> reliability and.. well, it's not pretty. And they tested server-grade >> ECC memory, which is presumably higher quality than non-ECC sticks... Go >> for Xeons, Opterons or AM2/3/3+ Athlon/Phenom with a suitable board >> (afaik only Asus) to get ECC support. The extra cost of ECC over non-ECC >> is almost nothing, but unfortunately Intel cripples the i* CPUs to >> remove this feature, so that you have to get a Xeon instead. > > Yeah, good point. All my servers are Phenom+Asus+ECC. Honestly it is > extremely rare (once I can think of) that it reported a corrected memory > error but it's yet another thing that could go wrong if you don't have it.
I have had bad memory corrupt the squashfs image, causing all kinds of funny errors. The problem is that memory corruption not only causes instability, but will also cause disk corruption, as every write goes through memory first. As the LTSP server is de-facto also a file server, that was not pretty. I have yet to upgrade to ECC, but I wrote cshatag ( https://github.com/rfjakob/cshatag ) and let it run every night so memory corruption (which will cause disk reads to be corrupted, too) is spotted early. Best regards, Jakob ------------------------------------------------------------------------------ Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231&iu=/4140/ostg.clktrk _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
