SAS expander and 9 western digital WD4003FZEX Now with 10 Seagate ST4000NM0023 instead things seem to work much better.
/Rune -----Original Message----- From: Dan McDonald [mailto:dan...@omniti.com] Sent: Friday, May 16, 2014 10:41 AM To: Rune Tipsmark Cc: omnios-discuss@lists.omniti.com Subject: Re: [OmniOS-discuss] OmniOS Panic on high ZFS Write Load On May 16, 2014, at 12:57 PM, Rune Tipsmark <r...@steait.net> wrote: > Hi guys, > > After having tried various distros as mentioned and after having tried SLC > and MLC PCI-E devices as well as SSD disks I think I actually found the issue. > > Previously I had a bunch of SATA disks connected to my SAS controller as well > as a bunch of SAS disks... now that I removed the SATA disks and only have > SAS disks left I have not been able to reproduce the issue (regardless the > fact I didn't even use the SAS controller for some tests that crashes). Very > weird and what a waste of a few hundred hours of reinstalling/testing, > swapping cables, switches, memory, messing with bios settings and what have > we. > > I now have two stable pools which each write a reasonable ~430 MB/sec with > sync=always on without crashing. > > Lesson - stay far away from SATA disks on LSI 9207-4i4e Were you using a JBOD or other expander? I've *heard* you can direclty attach SATA disks to an mpt_sas board if you're careful. But generally speaking, it's operationally foolish to attach SATA drives anywhere other than to dedicated SATA ports. Thanks, Dan _______________________________________________ OmniOS-discuss mailing list OmniOS-discuss@lists.omniti.com http://lists.omniti.com/mailman/listinfo/omnios-discuss
