All, This is little bit off-topic. More of hardware issue.
For our cloudstack, compute nodes (XENserver 6.2) are running on Supermicro SuperServer 5017R-MTF <http://www.supermicro.com/products/system/1u/5017/sys-5017r-mtf.cfm>. Sometimes in a pool, some server goes down on its own (host appears as disconnected from resource pool in XENcenter). We then have to power cycle or start it using IPMI. Over last year this has happened with few severs in different zones. I was wondering if anyone using similar super micro servers (as part of cloud or virt environments) had faced this issue and knows what could be done to fix it? 1) BIOS update is on my list, but I think for some servers we already have latest on latest BIOS. Plus we have near about 60+ hosts in all zones, so upgrading BIOS it bit lengthy task to achieve. 2) FYI, on supermicro recommendation, I've already disabled ACPI sleep state from BIOS. (Something like screen shot below:- https://snag.gy/rhvbWE.jpg), but don't think that helped. 3) Is there any config/setting at XENserver that might be needed to handle ACPI properly. -- Makrand
