Hangs with mrsas?
mcdouga9 at egr.msu.edu
Mon Mar 7 21:32:57 UTC 2016
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.
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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