external ESATA drives in a R610

Gavin W. Burris bug at sas.upenn.edu
Thu Aug 19 10:01:02 CDT 2010


Not all silicone image chips work.  I have two here that do not show up
at boot.  I contacted my rep, and he quoted me a LaCie eSATA controller
that did the job perfectly in a PowerEdge 1950.  It was: "3 GB eSATA II
PCI Express Card (A3054338)"

Cheers.

On 08/19/2010 03:39 AM, Bond Masuda wrote:
> In my experience, the controllers with Silicon Image chipsets provide the
> best support for eSATA hotplugging. The driver is already in the kernel of
> RHEL. Beware that trying to convert one of the internal SATA to eSATA may
> not work; some of the SATA controllers by Intel don't implement the hotplug
> capability and will lock up the system with a bus reset. I learned this the
> hard way and after much research found that the Silicon Image controllers
> were more capable. I think, going from memory from a couple of years ago, I
> used the Sil3132 chip based controller.
> 
> -Bond
> 
>> -----Original Message-----
>> From: linux-poweredge-bounces at dell.com [mailto:linux-poweredge-
>> bounces at dell.com] On Behalf Of Nataraj
>> Sent: Wednesday, August 18, 2010 3:45 PM
>> To: linux-poweredge at lists.us.dell.com
>> Subject: external ESATA drives in a R610
>>
>> I'm interested in adding hotplug ESATA capability with port multiplier
>> for backup purposes to something like an R610.   Is this supported by
>> any of the Dell external SAS controllers (don't need raid for this).
>> The machine would already be running SAS disks for it's primary
>> internal
>> disks.
>>
>> Would these controllers use the AHCI or another of the better
>> performing
>> drivers included with Redhat?
>>
>> I've also considered various external ESATA cards, but I'm unsure which
>> ones might work well with Redhat in a poweredge.  I would prefer to
>> stay
>> away from drivers provided by the card manufacturer.
>>
>> A 4 port x8 card would be nice.  I found a few of the following silicon
>> image based cards which would be great if they worked with the
>> sata_sil24 driver, but I have no way of knowing in advance which driver
>> will load.   Any other suggestions are welcome.
>>
>> http://eshop.macsales.com/item/DAT%20Optic/ESATAPCIE8/
>> This one seems to be a raid version of the one above, but I prefer
>> non-hardware raid for data archival purposes.
>> http://www.datoptic.com/four-esata-pci-express.html
>>
>> http://www.addonics.com/products/host_controller/adsa3gpx8-4em.asp
>>
>> Thank you,
>> Nataraj
>>
>>
>>
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> 
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-- 
Gavin W. Burris
Senior Systems Programmer
Information Security and Unix Systems
School of Arts and Sciences
University of Pennsylvania
215-514-7159



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