Commit 52b10cbf authored by Leigh B. Stoller's avatar Leigh B. Stoller
Browse files

Update the serial mux stuff. Now use RocketPort.

parent 66d68d18
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......@@ -250,7 +250,7 @@ recommendations, and outlines the consequences of each choice.
to invest some time and effort. The NFS server
needs enough space for /users and /proj , as well as a few extra gigs
for build trees, logs, and images. If you have more than 128 nodes,
and plan to use Cyclades or RocketPort serial ports, you need one
and plan to use the RocketPort serial ports, you need one
"tip server" machine per 128 serial lines (other serial muxes may
have similar limitations.) Tip servers do not need to be very
powerful, we use old desktop machines that have full-height PCI slots.
......@@ -289,7 +289,7 @@ recommendations, and outlines the consequences of each choice.
connect to the DB-9 serial ports on the nodes. Unfortunately,
the custom pinout is different for different serial mux
manufacturers. Contact us to get our custom cable specs
for Cyclades or RocketPort.</dd>
for RocketPort serial mux.</dd>
<dt><b>Power controllers</b></dt>
<dd>Without them, nodes can not be reliably rebooted. We
......@@ -307,25 +307,26 @@ recommendations, and outlines the consequences of each choice.
support 7 Dell 2850s per 30A/120V controller. So we went
with 8-port controllers for the latter.</dd>
<a NAME="SERIALMUX"></a>
<dt><b>Serial (console) ports</b></dt>
<dd>Custom kernels/OSes (specifically, the OSKit) may not
support ssh, etc. Also useful if an experimenter somehow scrogs
the network. We have used the <a
href="http://cyclades.com">Cyclades</a>
Cyclom Ze serial adapters, which allow up to 128 serial ports
in a single PC. But those have been discontinued and they
also require a 5V PCI slot. For our latest round of machines,
we use the <a
the network. We currently use the <a
href="http://www.comtrol.com/products/rocketport.asp">
Comtrol RocketPort</a> series of serial muxes.
In particular, we use the 32-port RocketPort Universal PCI
interfaces (pn 99356-8) and 1U rackmount panels (pn 99380-3).
As mentioned, you can only have 4 cards (or 128 ports) per
You can only have 4 cards (or 128 ports) per
machine, so if you have more than 128 nodes, you will need
multiple machines to host the interfaces.
Note also that the 32-port RocketPort is a full-height PCI
card, so make sure you have a machine with full-height
(not low-profile) slots!</dd>
(not low-profile) slots. (<em>In the past we have used the
<a href="http://cyclades.com">Cyclades</a>
Cyclom Ze serial adapters, which allow up to 128 serial ports
in a single PC. But those have been discontinued and they
also require a 5V PCI slot</em>)
</dd>
<dt><b>IPMI and ASF support</b></dt>
<dd>Most server motherboards, and some desktops, support
......
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