Getting Inc.ed

Somewhat of a play on getting inked, the day job is now an Inc. rather than an LLC. The reasons for the change are many, ranging from taxes, to important things like raising capital. Yeah, I know, we are at a 15 year low for VC investments. But this is a capital intensive business, and … Read moreGetting Inc.ed

rethinking git vs hg

I thought git was just getting better than mercurial. I found that basic git operations are easy, but others appear to be harder than I like (setting up remote repositories). Just tried the same thing with hg that I tried (and failed to do) with git. Worked like a charm. landman@pgda-100:~/target$ hg push ssh://mmmmq@mmmmq/hg/target pushing … Read morerethinking git vs hg

More JackRabbit 96TB OpenSolaris system

even more JackRabbit OpenSolaris 2009.06 goodness.

landman@pgda-100:~$ ssh scalable@192.168.1.74
Password:
Last login: Fri Jul 17 13:32:57 2009
Sun Microsystems Inc.   SunOS 5.11      snv_111b        November 2008
scalable@jr5-96TB:~$ su
Password:
scalable@jr5-96TB:~# zpool create tank c7t1d0 c10t2d0 c11t3d0
scalable@jr5-96TB:~# zpool status tank
  pool: tank
 state: ONLINE
 scrub: none requested
config:
        NAME        STATE     READ WRITE CKSUM
        tank        ONLINE       0     0     0
          c7t1d0    ONLINE       0     0     0
          c10t2d0   ONLINE       0     0     0
          c11t3d0   ONLINE       0     0     0
errors: No known data errors
scalable@jr5-96TB:~# df -h /tank
Filesystem             size   used  avail capacity  Mounted on
tank                    70T    19K    70T     1%    /tank

70TB of ZFS on JR5-96Tn.
[updated] to answer the questions on pricing, yes, this is less than $1 USD/usable-GB for this system.
And for some simple speed pr0n

Read moreMore JackRabbit 96TB OpenSolaris system

When debugging … make sure you have evidence before you point fingers

A 128 core cluster, user is experiencing ‘strange’ delays in their application. It is an MPI code, we found problems in previously.
I have to admit that at first I was amused when someone blamed the MPI stack, claiming it was broken, and did so by demonstrating that they didn’t know how to use an MPI stack. Their test case, literally copied from from an online course (possibly even our course materials), was the MPI-HelloWorld fortran example.
So I demonstrated that this was not correct, that it was working correctly. I see how they made their error, and I made it a bit more … er … consultant proof. Yeah. Thats the ticket.

Read moreWhen debugging … make sure you have evidence before you point fingers

Irresistable force? meet Immovable object …

There is a strong push (well at least the articles tell us so, and you know, its not like they are ever wrong … nosiree) to move computing into a cloud. This is sometimes a good idea, there are specific profiles which fit the cloud paradigm.
Quite a few profiles actually.
But there are some speedbumps. Literally. Bandwidth has been, and will be, an issue for the foreseeable future. Clouds have limited bandwidth in and out. End users have limited bandwidths in and out. You can “solve” this with Fedex-Net or UPS-Net. Encrypt disks in transit, require multi-factor decryption keys, and ship a couple-o-terabytes back and forth in a handsome carrying case.
Clouds are, if you believe the press and articles out there … the greatest thing since sliced bread. They are the future. They are … an irresistible force.
This may be. But apart from bandwidth, they are running hard into immovable objects.

Read moreIrresistable force? meet Immovable object …

Sun reports Q4 numbers

At the Reg. Not good.
In a nutshell? Revenues cratered.

Specifically, Sun said that it was forecasting that sales in the fourth quarter of fiscal 2009 ended June 30 would be in the range of $2.58bn to $2.68bn, down between 29.1 to 31.7 per cent over the $3.78bn in sales in fiscal 2008’s fourth quarter. The fourth quarter in fiscal 2008 was no great shakes itself, with sales down and net earnings falling 73.3 percent to $88m, or about 11 cents per share. It was the beginning of the end for Sun, as we now know.

Thursday, Sun shareholders vote on selling Sun to Oracle. I’d call it a foregone conclusion that this deal will be approved. If the regulators don’t approve it … well …

Read moreSun reports Q4 numbers