Linked by Eugenia Loli on Fri 13th May 2005 07:20 UTC
Sun Solaris, OpenSolaris Sun Microsystems has delayed the release of two major features the company has trumpeted as reasons to try its latest version of the Solaris operating system. Eric Schrock, a Solaris kernel programmer, said on his blog in April that he's "completely redesigning the ZFS commands from the ground up" after finding some deficiencies.
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The value of Janus & ZFS to Sun/Solaris
by Anonymous on Fri 13th May 2005 16:25 UTC

Former OS/2'ers here will probably agree with me that
Janus-ish features can be a mixed blessing.

If your support for somebody elses OS is too good
it might discourage companies from porting their
software to your platform -why should they pay the
extra development/qa/support costs for a Solaris
version when their linux binaries already work perfectly?

Note that I mentioned companies above. In particular
I am referring to companies/individuals who intend
to release closed-source (or pseudo-open source)
products where source code is unavailable or only
available under a difficult license.

I get the impression that a lot of open source Linux/*BSD
apps are quickly and "easily" (for a given value of
"easily") ported to Solaris, so GPL/BSD licensed
stuff will probably rarely require Janus.

For this reason I think Janus is, ultimately, of questionable long-term value to Sun.

ZFS, on the other hand, is a real blunder on the part of Sun.

Nobody here, until now, has commented on the fact that
Eric Shrock is "completely redesigning the ZFS commands from the ground up" after finding some deficiencies."

Leaving aside the question of how a talented Sun engineer could have made such serious errors in design that part of
ZFS must be redesigned from the ground up...

That leads me to wonder if ZFS might not be a very long time a-coming.

Yes, I realize that modern file systems are incredibly complex and demanding beasts.