Simon Breden wrote:
> OK, thanks Carl. So you think it would be a better idea, instead of 
> using an Infiniband HBA to directly connect the two machines, to in fact 
> directly connect the 2 machines via two 10Gbe NICs, and not using a 
> 10GbE switch -- like the old way of directly connecting two 10Mbps NICs 
> using a crossover cable?


That's what I suggest.


> Is there a crossover cable for 10GbE or is it not needed these days? I 
> think I recall seeing even in the 1GbE switch I have here that it seems 
> to have auto-MDX/MDIX support, which I assume is relevant here.


I expect that the NICs will do auto-sensing and you will not need a 
crossover cable, but I could be wrong.

Carl


> Thanks for the tip of avoiding the cost of an unnecessary expensive 
> 10GbE switch for this setup!
> 
> Cheers,
> Simon
> 
> 2008/11/25 Carl Hensler <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
> 
>     Simon,
> 
>     Since you propose to connect one DAS server to one editing station,
>     you can connect back-to-back without a switch.  The switches are the
>     most expensive 10 GbE components.  While I am a long-time IB
>     enthusiast, I think you will find 10 GbE the easiest way to get an
>     order of magnitude BW improvement with standard networking
>     interfaces.  Somebody can tell you which 10 GbE NICs are supported
>     on Solaris and then you can shop for price.
> 
>     Carl
> 
> 
>     -------- Original Message --------
>     Subject: [networking-discuss] Infiniband DAS: Solaris/ZFS over
>     Infiniband
>     Date: Mon, 24 Nov 2008 14:56:33 -0800 (PST)
>     From: Simon Breden <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
>     To: [email protected]
>     <mailto:[email protected]>
> 
>     Don't know if this is the right place for this question, but here
>     goes. If not right place, where should I post it instead?
> 
>     I was wondering about the practicalities of building a DAS box
>     running Solaris with ZFS, attached to a video editing workstation
>     (Mac Pro) via an Infiniband adapter, as these seem about the fastest
>     forms of connection available (certainly a lot faster than gigabit
>     ethernet). I know 10GbE is around but I think it's not quite here
>     for the masses yet (perhaps I'm mistaken, but it's my impression).
> 
>     I was thinking of building my own Solaris box, chucking in something
>     like 8 x 1TB drives in a RAID-Z1 formation, and I was thinking that
>     with the Infiniband connection I should be able to get fast transfer
>     speeds between the boxes, so assuming ZFS was fast enough, this
>     should give a speedy video editing storage server setup (something
>     like this, but with ZFS:
>     http://www.amug.org/amug-web/html/amug/reviews/articles/enhance/e8/)
> 
>     So my question really is does Infiniband work well on Solaris, and
>     if so, which is the preferred HBA to use? (most solid/well-supported
>     driver, I suppose)
> 
>     Does anyone see any show-stoppers preventing something like this
>     working or does it look doable? In fact are there any people who've
>     built a working setup like this that they have documented?
> 
>     I was thinking of something like the HighPoint RocketRaid 2322 HBA
>     (http://www.highpoint-tech.com/USA/rr2322.htm) running in JBOD mode
>     to keep ZFS happy. Oh dear, seems like it supports Mac OS X but not
>     Solaris :(
> 
>     Thanks,
>     Simon
>     -- 
>     This message posted from opensolaris.org <http://opensolaris.org>
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> 

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