H Microsoft προειδοποιεί κατά την χρήση των Nehalem της Intel στα server προϊόντα της

[grimpr]

H Microsoft προειδοποιεί κατά την χρήση των Nehalem της Intel στα server προϊόντα της λόγω Bugs/Erratum στην σειρά Xeon/Core i7/Core i5.

 

http://top500.org/blog/2009/11/23/about_war_and_peace

 

http://support.microsoft.com/kb/975530

 

While AMD and Intel are really fond of each other now, it seems there was some serious backstage trouble between Intel and Microsoft. For the integrated hypervisor of Windows Server 2008 R2, Microsoft has bravely resorted to a timer function that they themselves had classified as unreliable for former processors: the timer of the Advanced Programmable Interrupt Controller (APIC). Unlike, for example, the CPU timer (Time Stamp Counter, TSC) – which by now is comparatively resistant to power-saving, SpeedStep and turbo-boost modes, but is also virtualized by virtual machines – the APIC timer can also trigger interrupts. Unfortunately, right now, the Nehalem has too many of those, so that the hypervisor falters and then stops, returning the message “Clock_Watchdog_Time-out”.

 

Intel didn’t specify this bug until September when it was mentioned in its specification updates under AAK119 (Xeon 5500), AAM123 (Xeon 3500), AAO89 (Xeon 3400), AAJ121 (Core i7-900) and AAN87 (Core i7-800, Core i5). And although Microsoft probably indicated the integration of the APIC timer in the new server edition in time, the most recent specification updates from November still include the placating passage: “Intel has not observed this erratum with any commercially available software.“ Microsoft now describes the disaster under error number 975 530, provides a hotfix (on e-mail request) that is not further specified and otherwise proposes the non-serious solution of disabling the power saving states C3 and C6 – which would also shut down the Nehalem’s turbo-boost feature. And it still gets worse: the editorial office received a non-published raw version of the error report that even included the brusque “preferred solution” of not using the processors in question. Strong meat: Microsoft advises against the application of Nehalem processors in servers – so Intel took to the barricades and was able to prevent it at the very last second.

 

 

Η Pillar, πετάει με τις κλωτσιές τους SSD της Intel από τα storage array της.

 

http://www.computerworld.com/s/article/9138130/Pillar_kicks_Intel_s_SSD_to_the_curb_upgrades_storage_array

 

 

[ame]

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[Millenium]

Ακομα εχει προβληματα η intel με τους ssd της με trim?

 

http://arstechnica.com/hardware/news/2009/10/intels-black-box-40-performance-increase-mass-ssd-death.ars