Date: Mon, 7 Mar 2016 16:26:16 -0500 From: Adam McDougall <mcdouga9@egr.msu.edu> To: freebsd-stable@freebsd.org Subject: Re: Hangs with mrsas? Message-ID: <56DDF1F8.3060502@egr.msu.edu> In-Reply-To: <22237.53738.967189.432979@khavrinen.csail.mit.edu> References: <22237.53738.967189.432979@khavrinen.csail.mit.edu>
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On 03/07/2016 14:09, Garrett Wollman wrote: > I have a new Dell server with a typical Dell hardware RAID. pciconf > identifies it as "MegaRAID SAS-3 3008 [Fury]"; mfiutil reports: > > mfi0 Adapter: > Product Name: PERC H330 Adapter > Serial Number: 5AT00PI > Firmware: 25.3.0.0016 > RAID Levels: > Battery Backup: not present > NVRAM: 32K > Onboard Memory: 0M > Minimum Stripe: 64K > Maximum Stripe: 64K > > Since I'm running ZFS I have the RAID functions disabled and the > drives are presented as "system physical drives" ("mfisyspd[0-3]" when > using mfi(4)). I wanted to use mrsas(4) instead, so that I could have > direct access to the drives' SMART functions, and this seemed to work > after I set the hw.mfi.mrsas_enable tunable, with one major exception: > all drive access would hang after about 12 hours and the machine would > require a hard reset to come back up. > > Has anyone seen this before? The driver in head doesn't appear to be > any newer. > > -GAWollman I did some similar testing in late Jan but perhaps not long enough to notice your symptoms. I'm pretty certain I used mrsas_enable since that is what I would plan to use in production. I had a H330-mini with the same firmware rev in a R430. I was testing with some 2.5" Seagate ST9600205SS 600gb disks from another system. What kind of disks were you using and in what kind of configuration? Does a simpler config stay up? If you are using SSD, I wonder if disks would survive? SSD firmware issue? Was it hard hung at the console too? Can you enter DDB? If you don't mind, which Dell model is this? Sorry I don't have any directly helpful suggestions but you have good timing because this could very well influence hardware choices. Thanks.
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