September 5, 2007 11:48 AM PDT

NetApp files patent suit against Sun

NetApp files patent suit against Sun
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Network Appliance filed a patent lawsuit against Sun Microsystems, alleging that Sun's ZFS storage software, a key element to its Solaris operating system, violates seven of its patents.

NetApp, which filed its lawsuit Wednesday in a U.S. District Court in Texas, alleges Sun violates patents relating to data processing systems and related software.

NetApp is asking the court to issue a permanent injunction against Sun to prevent it from further developing ZFS and offering it commercially or creating derivatives of the software.

ZFS, which endows servers with vast storage capacity, high data integrity and easier networked storage administration, is one of the key features introduced in Solaris 10. Sun executives frequently cite ZFS as evidence of the company's engineering skill, and it's one of the few Solaris features that has caught the attention of Linux programmers who often consider Solaris a relic from an earlier age.

In addition to the patent violation claims, NetApp is asking the court to declare that it has not violated three of Sun's U.S. patents and to find them invalid.

Sun disputes the basic claims that ZFS violates NetApp's patents and that the Sun patents are invalid. The company tried to position the lawsuit as an attack on open-source programmers and users.

"NetApp's legal attack against Sun's open-source ZFS solution which is freely available in the marketplace is a clear indication that NetApp considers Sun technology a threat and is a direct attack on the open-source community," Sun said in a statement. "Sun indemnifies its customers and stands behind the innovations we deliver to the marketplace."

Sun approached NetApp about 18 months ago with claims the storage maker was violating its patents and seeking a licensing agreement, NetApp Chief Executive Dan Warmenhoven said in a statement.

Several months into those discussions and following a review of the matter, NetApp made a discovery of its own, Warmenhoven said, concluding NetApp did not infringe the patents but that Sun infringed on NetApp's.

In April, talks between the companies broke off.

"Sun shifted from an aggressive position to not returning calls," Warmenhoven said.

Compounding the disagreement between the parties, Sun released ZFS as open source to users under its Community Development and Distribution License.

NetApp has no plans to pursue litigation against those who are using ZFS open source for educational purposes, research or other means that do not compete with NetApp, said Dave Hitz, NetApp founder and executive vice president.

And despite its lawsuit against Sun, NetApp has no intention of asserting its claims against its customers or Sun's customers, Hitz noted.

NetApp executives said they doubt a resolution will be reached with Sun before the courts rule on the case. They estimate a decision could be reached as soon as 12 to 18 months.

"Our objective is to get this resolved as soon as possible," Warmenhoven said.

CNET News.com's Stephen Shankland contributed to this report.

See more CNET content tagged:
NetApp, Network Appliance Inc., Sun Microsystems Inc., patent, patent suit

5 comments

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permanent injunction
Permanent injunction. LOL... Get over your software patents US...
Posted by Karl Viklund (51 comments )
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Another Reason to Avoid Free Open Source Technology
You will see more and more of these cases as companies that were once purely open source move to the commercial open realm and begin to assert their intellectual property rights. It was only a matter of time, since the maintenance model does not bring in sufficient capital.
Posted by WJeansonne (480 comments )
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re: Another Reason to Avoid Free Open Source Technology
}}} You will see more and more of these cases as companies that were once purely open source move to the commercial open realm and begin to assert their intellectual property rights.

What are you talking about? Neither Sun, or Netapp started off as an 'purely' open source company, and they aren't a 'purely' open source company now.
Posted by zoredache (14 comments )
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Microsoft Shill?
Running around claiming that for-pay software is the only way to go sounds like you're being paid off by Microsoft. Just from a numbers perspective, the amount of software in use in the world that is open source is exploding, especially outside the US, where people won't pay Microsoft/Oracle/etc pricing levels and either pirate software or use open source software. Because of this, anyone who claims that for-pay software, in the old lock-you-in-or-you-will-be-sorry model, is on its way out. You can claim that for-pay is a better model, but it's dying, just like the old record-company dominated media market. In addition, there are passionate, open-hearted people out there working their ***** off to provide high-quality open source software, developed from scratch to avoid copyright issues and insulate from lawsuits... specifically because they want to break the old paradigm. It's days are numbered.

You can claim that it's better to go with for-pay because of the lawsuits you might be exposed to, but with the demographics I pointed out above, it will soon be the for-pay software companies that will bear the brunt of the suits, and they won't be able to afford them.

But, fortunately, this isn't an either-or proposition. There are a number of companies, Sun included, that are trying to create a hybrid model of software development in which the ideas and core software are in the public domain and customers still pay for support and business-specific enhancements. Value is moving from the shrink-wrapped software into full solutions to business problems, with SaaS in the mix. This is where I think things are going.
Posted by enovikoff (170 comments )
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