Enterprise Linux Log:

DataCenter

Oct 23 2009   6:05PM GMT

Servers in space: The future of data centers?



Posted by: Leah Rosin
open source, DataCenter, green data centers, solar energy, ServerSky

I have to say, I was immediately intrigued when I read the description of Server Sky. I had heard of floating water-based data centers, far north geothermal powered data centers, and an array of containerized and inventive data center options that all are focused on cheap energy, and greener concept. But until the October 22, 2009, meeting of the Eugene, Oregon IT Pro Forum, I had not thought of data centers in space (which, even while typing it, I think needs a series of exclamation points). But Keith Lofstrom has. Now, before the Star Wars fans start imagining a massive death-star-like space station filled with servers and astronauts/system admins, stop, you’re going to be disappointed.

I descended into the basement of the Eugene City Brewery (where else would IT geeks meet?), ordered my pint of Rogue Chocolate Stout and joined a smattering of local IT pros who had gathered to have a good brew and talk geek with their peers. It was in this darkened room, with large brew kettles visible through the glass windows behind the projector screen that I was introduced to Lofstrom’s vision of a data center in space.

Location is important in this story – the location of the data center, location of the presentation, and the location of the engineer. Lofstrom lives in Portland, Oregon, a city that has the slogan “It’s not easy being green,” within in a state that has put considerable effort behind attracting green industry. His silvery white hair is neatly pulled back into a low stub ponytail, perfect for fitting under his bicycle helmet as he commutes around the city. His attire is casual, with little frameless glasses that, along with the hair combined to evoke historic images of Benjamin Franklin. It’s clear he’s a thinker, a dreamer even, and he’s passionate about this idea.

Loftstrom explained that it all began when he heard a presentation about data center energy use, and the fact that as we all watch more videos, post more photos, and use the internet, the demand for energy from data centers will only increase. Much has been written about this problem and possible solutions so I won’t bore you with details. But to illustrate, Lofstrom shared the August 9, 2009, Dilbert comic:

Dilbert.com

Pretty gloomy, but the facts behind this image can be motivational to an engineer like Lofstrom.
He passed around a small device with a flash drive and a couple Ethernet ports that he uses as a firewall for his computer system. This device, he explained, inspired him to think about small physical computing devices that could be solar powered, and Server Sky was born. We all looked at the eight-and-a-half by eleven sheet of paper that he had prepared. On it was a diagram of the Server-sat.

Then Lofstrom explained that the diagram we saw was to scale.

Immediately, audience members had questions. Lofstrom explained that he would get to most of them through the course of the presentation. Incidentally, the presentation was given via a presentation software application he had developed that he hoped to get some more collaboration on because, he said, “If nothing else comes from this, I’d like to get this presentation software improved and kill PowerPoint.”

Lofstrom spent the next hour plus going over orbital physics, Moore’s Law, Newton, light pressure, satellite technology, space junk, and biology. He’s really been doing a lot of thinking on this, but admits he wants and needs more minds focused on it. With a background in open source software, Lofstrom is hoping to keep the project open to contribution from others for as long as possible, “before the investors come in and lock everything up.”

If you’re interested in finding out more information, you can view a recorded video of his presentation from Linux Fest Northwest 2009.

Sep 23 2009   3:52PM GMT

Brave new LinuxCon



Posted by: Leah Rosin
Linux, Linux events, Novell, OpenVZ, Linux kernel, Linux development, Systems Management

I’ve been in Portland, Ore., this week attending the inaugural LinuxCon, hosted by the Linux Foundation. The event was a bigger draw than the organizers had anticipated, with about 600 attendees registered, making the WiFi in the rooms a bit spotty and the keynote hall a bit crowded, but all in all more interest in Linux is a good thing. The sessions have been a mix of big picture Linux evangelism to detailed technical sessions for developers with the weakest area being sessions that were designed to attract the systems administrator set.

Linux from the kernel to the big picture
Highlights so far have included a kernel maintainer panel discussion featuring Linux kernel founder Linus Torvalds, Jon Corbet of LWN.net, Chris Wright from Red Hat, IBM’s Ted Ts’o, Novell’s Greg Kroah-Hartmann and moderator James Bottomley. While many positive things were said about the panel discussion, one sentence uttered by Torvalds got the most attention.

“We’re getting bloated and huge, and yes it’s a problem,” said Torvalds in reference to the size of the kernel. “I would love to say that we had a plan. Our icache footprint is scary.”
Continued »


May 27 2009   6:38PM GMT

Readers weigh in on Sun/Oracle impact



Posted by: admin
Linux, sun microsystems, Oracle, Citrix XenApp, Solaris, x86, Novell SUSE, Red Hat, nVidia, OpenSolaris

This post was written by News Contributor, Pam Derringer.

A May 5 story on SearchEnterpriseLinux.com about the decline of Sun Microsystems and its recent purchase by Oracle Corp. drew some thoughtful, diverse views from readers. The article concluded that Linux didn’t cause Sun’s downfall, fiscally speaking, but provided a low-cost x86-based OS that offered companies a cheaper hardware/software alternative, indirectly undermining Sun’s overall business.

David Marsh, an IT architect with a custom chip company, said his firm is planning to replace its outdated Solaris systems with cheaper, more powerful x86-based hardware, a decision that has nothing to do with the pending Oracle/Sun merger. Marsh expects to migrate its Oracle e-Business suite from Solaris to Linux at the next upgrade, probably virtualizing some portions of the application, and potentially all of it, on VMware.

Marsh’s firm also uses Sun Solaris instead of Windows to run Citrix XenApp, which functions as the front-end for its designers, who use many Linux-based tools. Marsh would prefer to migrate them from Solaris to Linux because the licensing for the Windows version of XenApp is “triple” the cost on Solaris. However, a Citrix spokeswoman said Citrix currently has “no plans” to add a XenApp version for the Linux platform.

Marsh was dismayed with Citrix’ response and predicted that “quite a few high-end customers will switch to other products,” like X-Windows display software for Windows or free, open source Xming software.

But Rich Rutkowski, whose small firm makes point-of-sale systems for retail outlets, hopes that Oracle will leverage Solaris and Java at Linux’s expense. Rutkowski’s firm was using Linux for development but was disappointed with Red Hat and Novell’s SUSE open source OSes. Red Hat doesn’t support Sun’s application server directly but, instead, refers users to Sun forums, he complained. And SUSE has a complex install process for nVidia drivers and, worse, a SUSE desktop upgrade caused a kernel panic, he said.

“After experimenting with OpenSolaris and the full production Solaris, we realized that everything we added to Linux (Postgres, Java Application Server and Java) came packaged with a full install of Solaris,” Rutkowski said. “Buying from Sun makes sense and the costs were actually cheaper. We will stay with Sun hardware and software and observe Oracle’s actions. There is no reason to go to Linux if Oracle keeps Solaris open.”

Oracle’s $7.4 billion purchase of Sun Microsystems is expected to be finalized this summer.


Apr 27 2009   11:22PM GMT

IBM POWER Systems focuses on Linux



Posted by: Leah Rosin
Linux, PoweraVM Lx86, x86, IBM, Novell SUSE 11, PowerVM Live Partitioning Mobility

In light of the global economic situation, IBM is putting a greater emphasis on the Linux market. This was an obvious shift that I noticed today while attending the COMMON User Group Annual Meeting and Exposition in Reno, Nev. I sat in on a panel discussion with Ian Jarman, IBM’s Power Systems Software Manager, and he plainly stated this fact. Jarman shared the Linux focus of IBM’s recent announcements, including increased focus on the PowerVM Lx86 product, which was created to help combat x86 server sprawl. PowerVM Lx86 creates an x86 Linux application environment running on POWER processor-based systems by dynamically translating x86 instructions to Power Architecture instructions.

On the exhibit hall floor, Anirban Chatterjee, IBM IT Specialist in the Executive Briefing Centers Systems and Technology Group, demonstrated how the tool works along with the PowerVM Live Partitioning Mobility feature.

Jarman also touched on the fact that IBM offers full support for SUSE 11, a move we have reported previously, with a focus on the cloud computing emphasis.

I’ll be keeping my eye on the Linux on Power activities at IBM throughout the show, and we’ll be following up with some end users who are willing to share their experiences. If you have any questions you want to ask IBM about Linux on POWER, leave a note in the comments below and I’ll work on getting you an answer.


Apr 21 2009   6:13PM GMT

Open source community reacts to Oracle-Sun deal



Posted by: Leah Rosin
Oracle, sun microsystems, MySQL, PostGreSQL, Java, open source, Innobase, Open source Solaris

Yesterday’s news that Oracle had entered an agreement to buy Sun sent a bit of a shock wave through the open source community. After weeks of pondering what an IBM buyout of Sun would mean, the IT community now had an entirely different scenario unfolding.

The news was the first thing I noticed when I logged onto Twitter, and I saw that SearchDataCenter.com was working on the story. I “retweeted” Executive Editor Matt Stansberry’s play for feedback and heard back from Tom Howard, who said “IBM missed its chance. I want to know what Oracle’s commitment to Open Office and Solaris are, personally.”

But the bigger fear was from the MySQL folks. Satoshi Nagayasu, an open source database engineer from Tokyo, Japan, asked “Should we say goodbye to MySQL?” He then pointed to a blog from 2005 that was a reaction to Oracle’s purchase of Innobase, and said “Josh’s article gave me some insights why we use community-based open source [PostgreSQL].”

One of the more fun and mood-illustrating reactions was from tartansolutions: “Oracle now owns MySQL?! In related news, the Rebel Alliance has been acquired by Darth Vader for three wookies and a tantan :(“

John Engates, CTO at Rackspace, said “Seems like there’s a lot of concern about Oracle screwing up MySQL. People may look to PostgreSQL as a ‘safe’ open source DB.” He linked to a blog post by Om Malik, providing the GigaOM perspective on the purchase. Of the things Om said, the central point in the concern could be summarized by this paragraph:

At this price, it looks like Oracle found itself yet another bargain and in one fell swoop became a worthy competitor to IBM. It allows Oracle to become a player in the cloud computing business. More importantly, the company ends up acquiring MySQL, the upstart database that has been viewed as Oracle’s Achilles’ heel. In one fell swoop, it has taken out its No. 1 competitor.

Not all in the open source community was doom and gloom though. Jim Zemlin, Executive Director of the Linux Foundation, in his blog post in reaction to the deal looked for a silver lining. Zemlin pointed out that Oracle is strategically aligned with Linux in its position as a Linux distributor, and all its products are developed and run on Linux.

“Oracle is a key supporter of open standards such as ODF and we believe this only strengthens that stance,” said Zemlin. “This acquisition could prove fruitful for Open Office and ODF support in the enterprise.”

I was on the phone for the Canonical Ubuntu 9.04 release press conference, and one of the participants asked Canonical CEO, Mark Shuttleworth, what his reaction was, specifically regarding Java support.

“It is far too early to tell,” said Shuttleworth. “Java has been open, it tends to be a one-way trip – once you’ve made that commitment it makes sense to have it as highly available as possible.”

Shuttleworth also saw the move as a bit of further evidence of the worth of open source in the enterprise software industry.

“This really cements that free software and open source is the driving force today,” he said. “All of the major forces today are either free software or powered by free software — Java, Google, and onward. The software marketplace is consolidating at an extraordinary pace. Part of the reason for that is that open source is dominating the innovation pipeline. The fact that one of those five has just announced a $7 billion acquisition of a company that describes itself as the world’s biggest free and opens source software company proves that open source is the big game in town.”

Lastly, analyst Dana Gardener painted what I feel is the most level-headed picture of what the whole deal means.

Suffice to say that whatever momentum Sun had behind open source everywhere will be muted to open source some times as a ramp to other Oracle stuff, or to grow the community and keep developers happy. If nothing else, Oracle has been pragmatic on open source, not religious.

What do you think this means for open source? Are you considering moving to PostgreSQL if you weren’t already? Are you a programmer worried about Java support? Share your thoughts in the comments

More analysis from TechTarget:
Oracle-Sun combo: What does it mean for enterprise Java?

Will Sun help Oracle eclipse IBM?

VARs turn wary eye on Sun-Oracle combo

Oracle-Sun: A threat to VMware?


Feb 18 2009   5:39PM GMT

Ubuntu gains another win in major server certification quest



Posted by: Leah Rosin
HP ProLiant, Canonical, x86 servers, Linux, Ubuntu Linux, HP, sun microsystems

The little distribution that could, Ubuntu Linux Server Edition supported by Canonical Ltd., announced that it was on its way to achieving certification on Hewlett-Packard’s ProLiant x86 servers. According to Canonical’s blog post on the topic:

The certification means HP will list Ubuntu as a supported operating system and verify the work undertaken by Canonical to ensure full certified compatibility. Furthermore both companies are fully co-operating at the engineering level to provide full underlying confidence for HP customers using the certified servers.

HP won’t be shipping servers with Ubuntu preloaded. But, as Canonical marketing manager Gerry Carr explained to me, the certification will provide HP customers with assurance that if they sideload Ubuntu, it will work with specific information regarding performance. This news follows Canonical’s announcement of user survey results that revealed an uptick in adoption of the server-based operating system in a variety of mission-critical Web and database applications. The surveyed Ubuntu users shared that they mostly use the OS on assembled servers and tower and desktop PCs.

However, Carr explained that “It appears to be that HP ProLiant is the second most popular [server] brand behind Dell PowerEdge servers. I expect that is consistent across the unknown Ubuntu users out there.”

For an example of who is using Ubuntu, Canonical shared the story of a Chicago-based finance house that runs entirely on Ubuntu server and runs their open and proprietary stack on primarily HP machines, with some Dell in the mix.

In his blog post regarding the announcement, Joe Panettieri of WorksWithU, an Ubuntu dedicated news website, explained the history of Canonical’s Ubuntu Server edition initiative. He shared that a recent site reader survey revealed growing momentum for Ubuntu in the enterprise market. However, the big players (Windows Server, Red Hat Enterprise Linux and Novell SUSE Linux) continue to lead the way in both mind and market share.

Al Gillen, VP in charge of system software research with IDC, echoed this perspective in a statement to Ed Scannell of Information Week:

“In terms of noise level, Ubuntu has been hot lately. But the ecosystem simply isn’t as mature for Ubuntu as it is for Red Hat and SUSE Linux. They do not have the level of application support and data base support, and some other things that you need to be enterprise ready.”

Ubuntu achieved certification on Sun’s x64 servers in early 2008, around the time Canonical released Ubuntu 8.04 LTS.

Carr shared that Canonical is working to see Ubuntu certified on all the major manufacturer servers in the next few years. The timing of certification on HP’s servers is unclear, but is underway and Carr expects to see it “sometime soon.”


Oct 28 2008   7:33PM GMT

SE-Postgres tightens SQL security



Posted by: Caroline Hunter
Security, Linux, PostGreSQL, DataManagement, Administration, interoperability and integration

This post was contributed by Joshua Kramer. For more information about Kramer, go to the EnterpriseLinuxLog About the Editors page.

In the theater of IT operations, security has moved to center stage. Attacks have become more complex, and legislative bodies have passed laws that require data protection. In just the past year, Nevada and Massachusetts introduced legislation requiring that consumer data be protected. 

 In 2006, Oracle introduced its Audit Vault, which purported to restrict access to data even from database management administrators. This kind of tool is extremely valuable in the fight against those trying to steal personal information.  

In early 2009, another player will offer a similar — and perhaps more secure — way to restrict data access As part of its yearly feature update, the PostgreSQL group plans to implement a module called SE-Postgres in the database core. This module inherits security rules and contexts from the SELinux rule set of the host OS to control access to tables, individual rows of data and even individual columns. Currently SE-Postgres is available as a patch to the Postgres 8.3 database (for those who don’t mind compiling source code). 

This inheritance of rules applies to all facets of SELinux and therefore gives you power beyond simply restricting access by role. When SE-Postgres is configured properly, a client’s SELinux context is propagated to all data it touches. For example, rows inserted by a subject with SystemHigh privileges will carry the Secret label. A query submitted by a subject with user_t privileges will not return rows that have such a label. For the most part, referential integrity is preserved; a table join will fail if one of the objects required in a table is disallowed by SELinux context. There are a few minor exceptions, but those will be closed as the project progresses.


Aug 27 2008   8:21PM GMT

Red Hat tight-lipped on breach, but risk appears small



Posted by: Pam Derringer
Security, Linux, DataCenter, authentication, Red Hat, Open source applications, TechTarget Blogs

Red Hat Inc. has declined to provide additional details on last week’s security breach on some Fedora servers that were illegally accessed. Although Red Hat said it did not believe that the package-signing key used to gain access to Fedora operating systems was compromised, the Raleigh, N.C.-based company issued a new Fedora signing key as a precaution. Fedora is Red Hat’s free operating system where innovations are introduced and tested before they are incorporated into production-ready Red Hat Enterprise Linux (RHEL).

Related to the Fedora intrusion, Red Hat also announced a breach into a few Open Secure Shell (SSH) security encryption packages for some versions of RHEL 4 and RHEL 5 that are not under the umbrella of a Red Hat network management system. As a precaution, Red Hat issued an updated version of the affected RHEL Open SSH security packages.

No big deal? 
Reaction to the breach is muted at best.

Joe Clabby, a principal at Falmouth, Maine-based Clabby Analytics, said that a new signing key install “could be a real hassle” for a large install base without an automated deployment system, but he didn’t think it was a huge problem. “It’s good they found it and made it public so people can fix it and life goes on,” he said.

Charles King, a principal analyst at Hayward, Calif.-based Pund-IT Inc., agreed.

A security breach is “always disquieting,” he noted, but this one is probably of lesser impact, because most data centers do not run Red Hat exclusively. In one sense, the breach could be viewed as an indicator of Red Hat’s growing success. Hackers generally target only commercially successful distros, King said.

Well-known tech blogger Jason Perlow said that the breach is “standard stuff” that will be remedied quickly because the entire open source community will become engaged in developing a remedy, versus a breach with a proprietary vendor, which could take months to solve the problem.

I suspect that most large Red Hat installs run RHEL rather than Fedora, thus reducing the probable risk to businesses. Nevertheless, as an admittedly impatient journalist wired to ask questions and expect answers, Red Hat’s failure to be more forthcoming about the extent of the breach and the potential impact is disappointing. Users aren’t well served by a limited statement and a wall of silence.


Aug 25 2008   1:50PM GMT

Should VMware buy Red Hat?



Posted by: Pam Derringer
IBM, Linux, VMware, Red Hat, Linux blogs and news, Open source applications, TechTarget Blogs

A recent Business Week article said that Raleigh, N.C.-based Red Hat Inc. is ripe for a takeover bid because its pockets don’t bulge as quickly as those of proprietary vendors and suggested Palo Alto, Calif.-based VMware Inc. as a promising buyer. VMware has a heftier cash flow and doesn’t have an operating system, a gap that Red Hat would fill, the author argues.

But three IT analysts panned the idea for multiple reasons. Richard Jones, the vice president and service director of Burton Group in Midvale, Utah, and Charles King, a principal analyst of Pund-IT Inc. in Hayward, Calif., don’t think Red Hat’s relative flat stock price makes it vulnerable.

“I don’t think it’s a risk,” King said. “The players within the industry and those in investment live in separate realities. If Red Hat can’t be a success as the clear leader in the market, what could VMware do to make it more successful?”

Jones doesn’t think Red Hat is vulnerable either. Red Hat has only its brand to offer (since open source software is free) and the company would be too expensive to buy, he said. Instead of VMware, Jones thinks that Oracle Corp. would be the more likely buyer.

Joe Clabby, principal at Clabby Analytics in Yarmouth, Maine, said a VMware/Red Hat merger doesn’t make sense because the addition of an operating system would put Hopkinton, Mass.-based EMC Corp., VMware’s parent company, in conflict with the other major hardware vendors who distribute VMware.

“I don’t see Red Hat making a ton of money,” Clabby said. “‘But I don’t think anybody’s at risk.”

But Clabby admitted that his crystal ball is sometimes a bit cloudy. “I didn’t think EMC Corp. should have bought VMware. But that acquisition has paid off extremely well.”

Ironically, the Red Hat news alert that initially popped up this week linked to a Computerworld column suggesting that IBM buy Red Hat, while admitting the outcome was quite unlikely. But a closer look revealed that Google erred in listing the “recent” article, which was written in 2002. The author, Nicholas Petreley, a computer consultant in Hayward, Calif., said this week that he was one of the first to urge IBM to buy Red Hat in the mid-’90s but said the acquisition now would simply put it in competition with other distros, similar to Clabby’s argument against a VMware/Red Hat merger. And Petreley’s thoughts were the same as mine: somehow the VMware piece resurrected his IBM column out of the depths of time and presented it as something new.

Well, as we all know, technology doesn’t always work 100% of the time. And this is just one more example.

The bottom line: Red Hat appears not to be a takeover candidate for now. And that’s probably a good thing.


Aug 15 2008   7:46PM GMT

Ubuntu growing its ecosystem of apps, partners, Canonical says



Posted by: Pam Derringer
IBM, Linux, Ubuntu Linux, TechTarget Blogs, Linux blogs and news, Open source applications, LinuxWorld

Malcolm Yates, the global independent software vendor (ISV) alliance manager at Canonical Ltd., traveled halfway around the world, flying from London to San Francisco with a message for LinuxWorld: Ubuntu is growing up. No longer just an operating system for geeks, Ubuntu has begun to evolve into a mature ecosystem with a small but growing cache of applications to run on top of an OS and more partners to expand its reach, he said.

Addressing an oft-cited shortcoming, Canonical is in the process of adding numerous key partnerships to expand the desktop and server offerings on top of Ubuntu’s OS and forging pacts with hardware vendors as well, Yates said. Parallels virtualization software and IBM DB2 database software already are downloadable from Canonical’s website and enterprise resource planning and customer relationship management applications in the works, he said. The desktop is beefing up, too, with OBM messaging and collaboration software and IBM groupware are coming soon, he said.

Canonical also has strengthened its development team to nearly a dozen members during the last year and has built a mini-operating system to enable ISVs to develop Ubuntu-based applications quickly and bring them to market, Yates said.

Although he didn’t have solid numbers, Yates estimated that Ubuntu’s share of the open source operating system market has doubled or tripled from IDC’s 9% projection last year, with the number of users opting for paid support rising proportionately. Server and desktop users both are growing but desktops – boosted by a 50,000 deployment by French police – are increasing faster, he said. But the coming addition of IBM groupware to Ubuntu’s desktop should boost Ubuntu’s momentum in the corporate market, both desktops and servers, he said.

Canonical’s goal is to make Ubuntu available via any partner and any business model and deliver it to users on the server as well as the desktop, Yates said.