Re:Testing disks: Lessons from our odyssey selecting replace...
by pxlfkr on Thursday October 19, 2017 @09:48AM
(#15507818)
Plugging SATA drives into a SAS HBA may not be optimal:
"SAS/SATA expanders combined with high loads of ZFS activity have proven conclusively to be highly toxic"
http://garrett.damore.org/2010/08/why-sas-sata-is-not-such-g...
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Re:Testing disks: Lessons from our odyssey selecting replace...
by equalunique on Thursday October 19, 2017 @10:09AM
(#15507988)
Interesting. This may explain a strange incident that I once encountered. One day I came home to my CSE-847 machine with SATA drives hooked to SAS expanders on an mpt device. The whole system was unresponsive and the drives were all as hot as a fresh pot of coffee. I immediately shut down the system and let the drives cool out on the concrete floor. Everything seemed to work later, but it was quite a scare. It was 12 2TB drives setup as 6 zraid2 mirrors.