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List:       beowulf
Subject:    Re: [Beowulf] =?utf-8?q?Slow_RAID_reads=2C_no_errors_logged=2C_why=3F?=
From:       David Mathog <mathog () caltech ! edu>
Date:       2018-03-22 16:02:20
Message-ID: af7a1f122d5001f6f06d96a9a8cc3a84 () saf ! bio ! caltech ! edu
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On 21-Mar-2018 19:11, Jonathan Engwall wrote:
> I am curious about such things.
> The DELL specs show the 710 can handle 32 devices, while the 730 can 
> handle
> 255! The
> pdf spec sheet also says the h730 has "workload profiles." If you are
> nowhere near 255 disks perhaps you can change the controller?

The box only has 8 drive slots, so there really isn't much difference 
between 8 and 255
in practical terms.  Well, maybe if there is some way to attach external 
storage.  The spec for both the 710 and 730 say the controller has "8 
internal ports", which for all I know map 1:1 with those slots.

My best guess is that the problem is in the disk firmware, so changing 
the controller most likely would not help with the SMART issue.

Regards,

David Mathog
mathog@caltech.edu
Manager, Sequence Analysis Facility, Biology Division, Caltech
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