On Thu, 25 Oct 2012, Sašo Kiselkov wrote:

On 10/25/2012 04:09 PM, Bob Friesenhahn wrote:
On Thu, 25 Oct 2012, Sašo Kiselkov wrote:


Look for Dell's "6Gbps SAS HBA" cards. They can be had new for <$100 and
are essentially rebranded LSI 9200-8e cards. Always try to look for OEM
cards with LSI, because buying directly from them is incredibly
expensive.

Do these support eSATA?  It seems unlikely.

eSATA is just SATA with a different connector - all you need is a cheap
conversion cable or appropriate eSATA<->SATA bracket, e.g.
http://www.satacables.com/html/sata-pci-brackets.html

While this can certainly work, according to Wikipedia (http://en.wikipedia.org/wiki/Esata#eSATA), eSATA is more than just SATA with a different connector. eSATA specifies a higher voltage range (minimum voltage) than SATA. It may be that a HBA already uses this range, or maybe not. Text I read says that maximum cable length is significantly reduced if an adaptor is used.

Also, I am curious to know how well hot-swap works with an enterprise-class SAS HBA and these cheap eSATA adaptors.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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