Sun engineers wondered if the 64-bit capabilities of current file systems will continue to suffice over the next 10 to 20 years. Their answer was no. If Moore's Law holds, in 10 to 15 years people will need a 65th bit. As a 128-bit system, ZFS is designed to support more storage, more file systems, more snapshots, more directory entries, and more files than can possibly be created in the foreseeable future....
... To efficiently use all of this capacity, file systems grow and shrink automatically as users add or remove data. Administrators can set quotas to limit space consumption and reservations to guarantee future availability of space. ZFS also provides compression to reduce disk space and I/O bandwidth requirements.
Logically, the next question is if ZFS' 128 bits is enough. According to Bonwick, it has to be. 'Populating 128-bit file systems would exceed the quantum limits of earth-based storage. You couldn't fill a 128-bit storage pool without boiling the oceans.'
Thursday, September 16, 2004
Enough storage to load most of Microsoft Office 2020 ....
Sun Microsystems - Feature Story - ZFS File System
When you need to think outside the trap
Normal For Us: The Miller Twins - About the Film . OPB
Ok, so these are not "average" parents. Maybe most of us can't rise to this level. On the other hand, when one feels trapped and doesn't want to "take it any more" ... here's inspiration.
If you can't win, then change the rules.
Ok, so these are not "average" parents. Maybe most of us can't rise to this level. On the other hand, when one feels trapped and doesn't want to "take it any more" ... here's inspiration.
If you can't win, then change the rules.
Jon Udell: LibraryLookup: place library order via Amazon page
Jon Udell: LibraryLookup (Build your own bookmarklet)
Jon Udell is brilliant. I've been a fan since the glory days of BYTE where he was a senior editor. Now he's got a bookmarklet that orders library books from Amazon pages. Jon has always written that we've yet to fully leverage the web opportunities that we've had since 1999 or so -- here he again proves his thesis.
(Bookmarklets, are coming into their own, probably because most browsers now finally support a core portion of JavaScript -- the new universal cross-platform language. Brendan Eich (sp?) must be very amused.)
Jon Udell is brilliant. I've been a fan since the glory days of BYTE where he was a senior editor. Now he's got a bookmarklet that orders library books from Amazon pages. Jon has always written that we've yet to fully leverage the web opportunities that we've had since 1999 or so -- here he again proves his thesis.
(Bookmarklets, are coming into their own, probably because most browsers now finally support a core portion of JavaScript -- the new universal cross-platform language. Brendan Eich (sp?) must be very amused.)
Very big Dantz Retrospect bug (OS X)
MacInTouch Home PageJust a quick warning to Mac OS X users running Retrospect 6.0.178. If you're backing up an entire drive and hope to restore it one day, do NOT do an incremental backup. This version of Retrospect doesn't recognize when symbolic links have changed the file to which they point. So it doesn't back them up.
This is unlikely to cause problems for personal home directories and such, but it has a disastrous effect when restoring a complete Mac OS X install, if you've done any software updates after your first backup in the set. You'll need to reinstall the OS.
The easy solution (until Dantz issues a fix) is to force Retrospect to backup ALL files, not just changed files.
(The technical reason for the problem is that when Apple updates frameworks in software updates, they update symbolic links named 'Current' to point to the new version. Retrospect backs up the new version, but fails to back up the updated symbolic link. Thus, on restore you end up with the new version, but the old symbolic link -- pointing to a no-longer-present version.)
Wow. I wonder if this is true for older versions too. Maybe I should give up on using Retrospect for a full system backup -- and focus on a data only backup. I can use CarbonCopy Cloner to do a clone periodically, and otherwise only backup the user directory.
This is unlikely to cause problems for personal home directories and such, but it has a disastrous effect when restoring a complete Mac OS X install, if you've done any software updates after your first backup in the set. You'll need to reinstall the OS.
The easy solution (until Dantz issues a fix) is to force Retrospect to backup ALL files, not just changed files.
(The technical reason for the problem is that when Apple updates frameworks in software updates, they update symbolic links named 'Current' to point to the new version. Retrospect backs up the new version, but fails to back up the updated symbolic link. Thus, on restore you end up with the new version, but the old symbolic link -- pointing to a no-longer-present version.)
Wow. I wonder if this is true for older versions too. Maybe I should give up on using Retrospect for a full system backup -- and focus on a data only backup. I can use CarbonCopy Cloner to do a clone periodically, and otherwise only backup the user directory.
Wednesday, September 15, 2004
Airport Express and Third Party Routers
Airport Express and Third Party Routers
An elegant web site dedicated to Airport Express interoperability with 3rd party routers.
An elegant web site dedicated to Airport Express interoperability with 3rd party routers.
BBC NEWS | Americas | Americans flee as hurricane nears
I've read that this season represents a return to historic hurricaine patterns, and that the global warming component is relatively small (but growing). I wonder how confident climatologists are in those statements.
Tim Forster, of the UK charity Oxfam, on the island of Grenada, said: 'This is the worst devastation I have ever witnessed.
'Ninety percent of houses have been torn to pieces and there is waste strewn across the whole island.'
I've read that this season represents a return to historic hurricaine patterns, and that the global warming component is relatively small (but growing). I wonder how confident climatologists are in those statements.
Tuesday, September 14, 2004
Capturing video on a Mac - EyeTV
Capturing video on a Mac - EyeTV
This author likes EyeTV. Interesting reference on how the capturing and publishing was done. Focus on TV capture -- using Mac as a PVR.
This author likes EyeTV. Interesting reference on how the capturing and publishing was done. Focus on TV capture -- using Mac as a PVR.
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