Date: Tue, 3 Jul 2018 14:28:58 +0200 From: "Oliver Sech" <CrimsonThunder@gmx.net> To: freebsd-scsi@freebsd.org Subject: problems with SAS JBODs 2 Message-ID: <trinity-14d18077-ea73-40f6-9e87-d2d4000b1f7e-1530620937871@3c-app-gmx-bs01>
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Hi! =C2=A0 I use FreeBSD with for a large ZFS pool (over 1PB) and I recently encounte= red a lot of problems with the JBODs=2E Generally everything works fine unt= il I replug the shelves=2E =C2=A0 When I start with a clean system and attach a single shelf every thing see= ms fine=2E -> 44 disks show up, I can use the enclosure services (sesutil) and the sy= stem continues to run without problems=2E Once I disconnect the SAS cable, wait until all devices disapear and recon= nect I get all sorts of problems=2E -> a random number of disks shows up and the enclosure "ses" do not show u= p Once I restart the system I can start over again=2E =C2=A0 On the server with the large pool there are only certain ports on the HBA = that I can use, otherwise disks will be missing after a reboot and my ZFS p= ool won't go online=2E I tried different firmware on the HBA=2E I tried the mpr=2Eko module from = the broadcom site=2E (I replaced the one in /boot/kernel?) I tested all the things above with a Linux as OS and everything seems to w= ork=2E =C2=A0 =C2=A0 Is there anything I'm missing? A command that can reset the SAS components= ? =C2=A0 =C2=A0 FreeBSD version: 11=2E1-RELEASE-p11 HBA: broadcom lsi 9305-16e (latest firmware) JBOD:SC847E2C-R1K28JBOD (two expanders, internally daisy chained)
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