[rescue] fire v210 upgrade
Thog of Cave People
thog at thogscave.net
Wed Jul 4 13:41:20 CDT 2007
On Jul 4, 2007, at 7:13 AM, Carl R. Friend wrote:
> I fully intend to look at more open systems, ones that can
> be properly upgraded, but since it's getting to the point where
> it's either Intel or SPARC my hand may be forced. I am *not*
> going to gleefully join the Intel monoculture.
You also need to keep in mind the target audience. It's not really
hobbyists or small companies. For example, I currently work at a
shop that uses hundreds of SPARC systems, many of them V210s and
V240s (racks full). For us, quick replacement of failed components
is of prime concern, and it's nice that the system board is a FRU.
As for upgrades, again it's easier.
Another factor is the skill needed to replace components. In the
days when tolerances were less, it was O.K. to kick a VME board to
seat it. But, as a Senior Engineer for Sun (one of my past lives), I
personally witnessed an SSE (who should know better) kick a board on
an E10K to seat it. I almost fainted. With the high-density
connectors and need for tight torque specs, it makes sense to make an
easily-to-replace unit, saving downtime and possible damage to
Sun's biggest problem is that they engineer the hell out of the
systems, then get crappy components. Case in point: We lose fan RPM
sensors on V210 power supply fans on a semi-regular basis. My
educated guess is that, much like the CPU fans on the Ultra 1s, there
is a serious supply-side issue, or a failure to take into account the
level of heat in many crowded racks.
Or, it's just a basic design problem. I've worked hand-in-hand with
the folks who designed the E10K and the F15/E25K. These are some
brilliant people with an amazing knack for making robust and stable
hardware. However, I always wonder why nobody originally noticed
that the air filters on the E10K required a power-down to replace.
Kind of a faux pas on a multi-million-dollar box that was supposed to
be able to stay up for very long times. Yeah, you had multipath I/O
and redundancy all over the place, but you can't replace the bloody
air filters without turning it off? (This was fixed in the F15K, by
Now, if you'll excuse me, I'm going over to pat my E450 on the head.
For a machine that turns 10 in a couple of months, it's doing very well.
More information about the rescue