[lug] USB3 vs eSATA III question

[Orion Poplawski]

We have several PCIe sssd laptops running EL7 with no issues.  Great 
performance.

On 07/22/2018 12:39 PM, Davide Del Vento wrote:
> I don't know anything about your question, but I'm seeing the most
> recent/performant (SSD) drives are using PCIe instead of anything
> else. I've also heard that booting linux from PCIe can be troublesome,
> so I think I'll buy a normal SATA drive (I'm in the market for a small
> one).
> 
> On Sun, Jul 22, 2018 at 12:27 PM, Bear Giles <bgiles at coyotesong.com> wrote:
>> This is mostly from curiousity...
>>
>> USB 3 has a claimed bandwidth of 3 Gbps.
>>
>> eSATA II has a claimed bandwidth of 3 Gbps, and eSATA III has a claimed
>> benefit of 6 Gbps.
>>
>> I don't think any USB stick is going to be pushing 3 Gbps (but I'm not 100%
>> certain), but perhaps an external hard drive, esp. an external SSD. But is
>> that actually realistic?
>>
>> In contrast my experience with eSATA is that it really is akin a
>> traditionally installed disk.
>>
>> Like I said this is mostly from curiosity. I noticed my recent systems
>> haven't had eSATA ports but it's easy to add a half-height card for one.
>> Ditto external drives - they usually only have USB 3 but if you buy an
>> external drive case for your own drive then it's easy to find them with both
>> USB 3 and eSATA. So I have my eSATA gear but it might not be necessary any
>> longer if the quoted USB 3 numbers are accurate.
>>
>> Does anyone else have experience with both USB 3 and eSATA?
>>
>> (Meanwhile I'm wondering what to do with a few old external drives that are
>> USB 2. They're so much slower and smaller than my external USB 3 drives.)
>>
>> _______________________________________________
>> Web Page:  http://lug.boulder.co.us
>> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>> Join us on IRC: irc.hackingsociety.org port=6667 channel=#hackingsociety
> _______________________________________________
> Web Page:  http://lug.boulder.co.us
> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> Join us on IRC: irc.hackingsociety.org port=6667 channel=#hackingsociety
> 


-- 
Orion Poplawski
Manager of NWRA Technical Systems          720-772-5637
NWRA, Boulder/CoRA Office             FAX: 303-415-9702
3380 Mitchell Lane                       orion at nwra.com
Boulder, CO 80301                 https://www.nwra.com/