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
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