> > > Folks > > I have a few more questions on 10GB Ethernet for Roach 2. > > Can we buy a 10GB Adapter (SFP+) for a pc then connect directly to the > Roach?
Yes, this works fine. > Or do we need to buy a switch as well? Nope. > > > Solar Flare sells these 10GBE SFP+ adapters called "server adapters." I am > using a regular Linux > workstation, not a server. Are there any issues with servers vs > workstations in terms of drivers etc? > > Would Solarflare Flareon SFN7002F work? It is a $300 adapter for SFP+. One > of the cheaper ones. > Not sure what the difference between the $1000 vs $300 10GBE adapters. We use the SFC 9020 in our VEGAS spectrometer. It's old and out of date. I think the 7002 should work fine, but you might want to test it. We also use myricom and mellanox adapters successfully. I think the main difference between the $1000 ones and the $300 ones is the name on the box. John > > Sorry for the dumb questions. > > Tim > > > > ________________________________________ > From: [email protected] > [[email protected]] on behalf of > [email protected] [[email protected]] > Sent: Tuesday, February 03, 2015 2:16 PM > To: [email protected] > Subject: casper Digest, Vol 87, Issue 2 > > Send casper mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > > https://calmail.berkeley.edu/manage/list/listinfo/[email protected] > > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of casper digest..." > > > Today's Topics: > > 1. Roach 2 GB Ethernet Basic Questions (Madden, Timothy J.) > 2. Re: Roach 2 GB Ethernet Basic Questions (John Ford) > 3. Re: Roach 2 GB Ethernet Basic Questions (Dan Werthimer) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 2 Feb 2015 21:46:48 +0000 > From: "Madden, Timothy J." <[email protected]> > Subject: [casper] Roach 2 GB Ethernet Basic Questions > To: "[email protected]" <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset="iso-8859-1" > > Sorry in advance for dumb questions. I have been using Roach 1 for a > few ye ars and like it. Now we have a Roach 2. I want to get the 10GB > ethernet working. > > A few questions: > What should I buy to plug into those holes on the back, where the > mezzanine > slots are? > Can I use a fiber optic widget to plug in? Or do we have to use > copper? Can > we use Long fiber or the short > fiber version of 10GB ethernet? Are there part numbers of what I > should buy > to stick into the back of the Roach 2 to allow 10GB Ethernet > connection? > What should I buy to plug into the linux box. I assume some fiber > optic 10GB > PCI -Express card but not sure. > I am running Red Hat Linux. Any name brands and part numbers? > Where do I get the latest libraries to download for roach 2. I did not > attend > the last Casper conference so I am not "hip" to the location. > > Thanks > Tim Madden > Argonne Lab > > > -------------- next part -------------- > An HTML attachment scrubbed and removed. > HTML attachments are only available in MIME digests. > > ------------------------------ > > Message: 2 > Date: Mon, 2 Feb 2015 17:21:28 -0500 > From: "John Ford" <[email protected]> > Subject: Re: [casper] Roach 2 GB Ethernet Basic Questions > To: "Madden, Timothy J." <[email protected]> > Cc: "[email protected]" <[email protected]> > Message-ID: > <[email protected]> > Content-Type: text/plain;charset=iso-8859-1 > >> Sorry in advance for dumb questions. I have been using Roach 1 for a >> few ye ars and like it. Now we have a Roach 2. I want to get the 10GB >> ethernet working. >> >> A few questions: >> What should I buy to plug into those holes on the back, where the >> mezzanine >> slots are? >> Can I use a fiber optic widget to plug in? Or do we have to use >> copper? Can >> we use Long fiber or the short >> fiber version of 10GB ethernet? Are there part numbers of what I >> should buy >> to stick into the back of the Roach 2 to allow 10GB Ethernet >> connection? > > > There are daughter cards for SFP+ connectors for the ROACH2 These allow > either copper or fiber. You can get transcievers for either single mode > or multi-mode, or copper cables with the cables and connectors all made > up. Google around for sfp+ and you will find lots of possibilities. > > The daughter cards each contain 4 SFP+ connectors. > > The card for the PC is likewise SFP+ enabled. We use mellanox, solar > flare, and Myricom NICs with good luck on Red Hat. Likewise new switches > are SFP+ enabled. I wouldn't fool around with cx-4 connectors unless you > have a boatload of old stuff you have to try to use. > > John > >> What should I buy to plug into the linux box. I assume some fiber >> optic 10GB >> PCI -Express card but not sure. >> I am running Red Hat Linux. Any name brands and part numbers? >> Where do I get the latest libraries to download for roach 2. I did >> not >> attend >> the last Casper conference so I am not "hip" to the location. >> >> Thanks >> Tim Madden >> Argonne Lab >> >> >> > > > > > > ------------------------------ > > Message: 3 > Date: Mon, 2 Feb 2015 19:59:40 -0800 > From: Dan Werthimer <[email protected]> > Subject: Re: [casper] Roach 2 GB Ethernet Basic Questions > To: "Madden, Timothy J." <[email protected]> > Cc: "[email protected]" <[email protected]> > Message-ID: > <caghs_vgg92ab4t5wnbe4umzejx6ow6cy9ttpfkbydi97zmh...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > hi tim, > > there are two possible 10Gbe mezzanine cards for roach2: > > CX4: 3xCX4 connectors - > CX4 is old and hard to find NIC's, cables and switches. > > SFP+: 4xSFP+ connectors - > SFP+ is the new standard for 10Gbe, and much more reliable, > > you can purchase all kinds of copper and optical SFP+ cables, > for up to 80 km links (see for instance SFP+ transceivers at > fiberstore.com) > SFP+ copper cables are available up to 10 meters. > i think active copper cables are available up to about 50 meters. > and there are tons of SFP+ switches and NIC's. > > for CX4, it's still possible to purchase, but mostly as used stuff on > ebay. > as john said, unless you have a bunch of old CX4 equipment, > it's better to use the SFP+ mezzanine board. > > best wishes, > > dan > > > > > On Mon, Feb 2, 2015 at 1:46 PM, Madden, Timothy J. <[email protected]> > wrote: > >> Sorry in advance for dumb questions. I have been using Roach 1 for >> a >> few ye ars and like it. Now we have a Roach 2. I want to get the 10GB >> ethernet working. >> >> A few questions: >> What should I buy to plug into those holes on the back, where the >> mezzanine >> slots are? >> Can I use a fiber optic widget to plug in? Or do we have to use >> copper? Can >> we use Long fiber or the short >> fiber version of 10GB ethernet? Are there part numbers of what I >> should buy >> to stick into the back of the Roach 2 to allow 10GB Ethernet >> connection? >> What should I buy to plug into the linux box. I assume some fiber >> optic 10GB >> PCI -Express card but not sure. >> I am running Red Hat Linux. Any name brands and part numbers? >> Where do I get the latest libraries to download for roach 2. I did >> not >> attend >> the last Casper conference so I am not "hip" to the location. >> >> Thanks >> Tim Madden >> Argonne Lab >> >> >> > -------------- next part -------------- > An HTML attachment scrubbed and removed. > HTML attachments are only available in MIME digests. > > End of casper Digest, Vol 87, Issue 2 > ************************************* > >
