Nicolas Williams <[EMAIL PROTECTED]> wrote: > On Wed, Sep 05, 2007 at 03:43:38PM -0500, Rob Windsor wrote: > > http://news.com.com/NetApp+files+patent+suit+against+Sun/2100-1014_3-6206194.html > > > > I'm curious how many of those patent filings cover technologies that > > they carried over from Auspex. > > > > While it is legal for them to do so, it is a bit shady to inherit > > technology (two paths; employees departing Auspex and the Auspex > > bankruptcy asset buyout), file patents against that technology, and then > > open suits against other companies based on (patents covering) that > > technology. > > > > (No, I'm not defending Sun in it's apparent patent-growling, either, it > > all sucks IMO.) > > DISCLAIMER: I've not read any of those patents, nor do I intend to, nor > did I have anything to do with the design or implementation > of ZFS. Also, IANAL. > > To me ZFS is very, very similar to 4.4BSD's Log Structured Filesystem. > Both are have strong similarities to transactional databases. >
There is a difference between a log structured filesystem and a copy on write based filesystem. As I wrote before, my wofs (designed and implemented 1989-1990 for SunOS 4.0, published May 23th 1991) is copy on write based, does not need fsck and always offers a stable view on the media because it is COW. http://cdrecord.berlios.de/new/private/wofs.ps.gz If you believe this is sufficient to cancel the netapps patent because of prior art, feel free to contact me..... Jörg -- EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin [EMAIL PROTECTED] (uni) [EMAIL PROTECTED] (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
