On May 31, 2013, at 10:50 AM, "Zane H. Healy" <healyzh at aracnet.com>
wrote:
At 7:32 AM -0400 5/31/13, David Riley wrote:
I run a reasonably recent 8-core Xeon as my
primary server. I don't get
that much traffic, it's just more convenient to have a machine that I can
run heavy compute loads on from remote locations. I have a dual P3 as a
secondary DNS server.
I'm set to acquire a few more classic systems in the near term, though.
If any of them can be run 24/7 without breaking the bank, I'll probably
change my primary public-facing services to them, partly for the "fun"
factor (none of the sites I host get enough traffic to justify anything
near an 8-core Xeon) and also because something like OpenVMS on an Alpha
is a much less likely target for random attacks by script kiddies.
I'm typing this on a fairly modern Dual 4-Core Xeon, but this is my
desktop, I don't feel a need for more CPU power than a P3 for a
server. OTOH, I need as much as possible on the desktop, as I spend
most of the time in Photoshop. Though realistically at the moment I
need more I/O power.
I run big FPGA builds on my server, so I can benefit from pretty
much whatever I can throw at it. FPGA build engines still aren't
parallelized very well, so I benefit more from increased clock
speed than more cores, but it can still use 4 of the 8 for about
20% of the build. Plus, I can run multiple ones in parallel when
that's necessary.
The web/DNS/mail/file server parts of it could probably be pretty
easily handled by a 68k running NetBSD, but I already have this
running for compute tasks and it barely even registers the server
tasks, plus it has an OK SAS controller so I can use nicer disks
once I can afford them.
My primary OpenVMS server, the one I ran 24x7, and
served up data on
the Internet for years moved from an Alphastation 200 4/233 -> DEC
3000/300LX -> 433au -> Compaq XP1000/667. It also started with a
single internal SCSI HD, made it up to two BA350's that were mostly
full, and now has dual 3-drive SCA JBOD boxes. It also has 4mm DAT
and DLT tape drives (in the past it's had 8mm and DLT tape libraries).
The XP1000 has plenty of CPU power, RAM, and disk space for RDB and
WASD, but the configuration sucks power like crazy. Still I
seriously miss having a VMS server online, and am considering moving
it back to an AlphaStation 4/233.
Alternatively, Simh simulates a uVAX 3900 faster than my actual 3900
even on a moderately-powered Core2 machine. That could be handy if
you're not focused on having the actual iron running and have spare
cycles on a machine (on an early Opteron, I'll testify that it takes
up pretty much a whole CPU by itself, even at idle, but you can
always renice it down).
- Dave