Linux kernel 2.6.26.5 is buggy, 2.6.27-rc6 works

Alrighty. Been struggling to get an operational 2.6.26.5 kernel working for a customer. This is supposed to be the next generation of our supported kernels, replacing the now aging 2.6.23.14 kernel (you think ours is old? look at RHELs). It works fine on a Ubuntu system. All the things we needed built it, do in […]

SGI late with financial filings

Mercury news blog reports that SGI has told the SEC that it will be late in filing its financials for the quarter. Specifically When asked to indicate whether or not the company anticipates “any significant change in results of operations from the corresponding period for the last fiscal year”, SGI answered “Yes”. Read the full […]

The time implications of storage size

I’ve been writing and talking about data motion as a pain point for a while. To drive this home, have a look at this site. This provides a snapshot into how much bandwidth a technology provides, and what the implications are for (best case) data motion over time. Since data motion isn’t getting any easier, […]

updated bonnie++ for JackRabbit-M

[root@jackrabbitm sbin]# bonnie++ -u root -d /big -f Using uid:0, gid:0. Writing intelligently…done Rewriting…done Reading intelligently…done start ’em…done…done…done… Create files in sequential order…done. Stat files in sequential order…done. Delete files in sequential order…done. Create files in random order…done. Stat files in random order…done. Delete files in random order…done. Version 1.03 ——Sequential Output—— –Sequential Input- –Random- […]

Observations on kernel stability

There is just no nice way to say this. We have a real (serious) concern over the stability of the baseline Redhat/SuSE kernels on newer hardware. Not just our JackRabbit systems (and our forthcoming ΔV systems), but clusters of newer gear, newer servers, etc. We install baseline systems, using nothing but the baseline components, perform […]

Evolution of sales models in a changing economy

Short note. For many years, large computing companies have fielded large sales forces, and large reseller forces to provide more sales firepower to their revenue generation efforts. These require personal interaction to buy something. Sun has recently decided to go almost all reseller. Feedback from some of our mutual customers indicates that some customers don’t […]

why do I bang my head against this wall?

… because it fees so good when I stop. Or so goes the old joke. A long while ago, I mentioned we have a customer who self-inflicts pain by spending too much time using root for day to day work. We advise against this. No good can possibly come of this, only bad. Like the […]

Blue waters are a-movin…

NSF is funding a 2×10^5 processor monster machine at NCSA. At $208M, each dollar will by you 4.8 MFLOP (4.8×10^6 FLOP). Hmmm…. Assuming a quad core CPU would be able to provide (in theory) 32 GFLOP (4 cores x 8 GFLOP/core), you would need 31,250 units to provide this … (125000 cores). There are some […]