Re: [CGUYS] Details on Apple's Time Machine
Thanks. The article confirms what I suspected when Jobs first described Time Machine: It's a *lot* like Dirvish, as you can see from the description Thanks too. I did not know about Dirvish. Yes it does look like Apple's Time Machine is borrowing from this open source project. Time Machine looks more attractive because I don't need to set up a Unix server. All Time Machine requires is another disk drive. The operating system takes care of everything else. I see an interesting note that Dirvish does not get along so well with a journaled file system. Hopefully kinks like this will be nicely sugar coated by Apple. I also wonder about how it works with File Vault. Has anyone spotted a Dervish applicance? This looks like a nice product for a compamy like Linksys to provide. Or mayne someone has a hack to convert an NSLU2 into a Dervish server? That would be cool too. * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived
Re: [CGUYS] Details on Apple's Time Machine
Thanks. The article confirms what I suspected when Jobs first described Time Machine: It's a *lot* like Dirvish, as you can see from the description here: http://edseek.com/~jasonb/articles/dirvish_backup/snapshot.htmlhttp://edseek.com/%7Ejasonb/articles/dirvish_backup/snapshot.html Why Apple has to call hard links multi-links I don't know. I also didn't know HFS+ didn't support hard links. py On 10/15/07, Tom Piwowar [EMAIL PROTECTED] wrote: This is a long article and the first part is a history of backup strategies (something not everyone will find interesting). However, after that it goes into a lot of detail about Time Machine. This is a big deal for Apple and they have invested a lot in making it work by making a very interesting change to how its file system works. They have created a new type of alias (shortcut) that keeps a file around as long as any one of these new pointers exists and lets them stack up multiple instances of the same file. This allows them to make many snapshots of your files while automatically eliminating duplicates. Very interesting. http://www.appleinsider.com/articles/07/10/12/road_to_mac_os_x_leopard_time _machine.html * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived
Re: [CGUYS] Details on Apple's Time Machine
Of all the things vista lacks...it did have time machine minus the star field. Mike On 10/22/07, P Yasuda [EMAIL PROTECTED] wrote: Thanks. The article confirms what I suspected when Jobs first described Time Machine: It's a *lot* like Dirvish, as you can see from the description here: http://edseek.com/~jasonb/articles/dirvish_backup/snapshot.html http://edseek.com/%7Ejasonb/articles/dirvish_backup/snapshot.html Why Apple has to call hard links multi-links I don't know. I also didn't know HFS+ didn't support hard links. py On 10/15/07, Tom Piwowar [EMAIL PROTECTED] wrote: This is a long article and the first part is a history of backup strategies (something not everyone will find interesting). However, after that it goes into a lot of detail about Time Machine. This is a big deal for Apple and they have invested a lot in making it work by making a very interesting change to how its file system works. They have created a new type of alias (shortcut) that keeps a file around as long as any one of these new pointers exists and lets them stack up multiple instances of the same file. This allows them to make many snapshots of your files while automatically eliminating duplicates. Very interesting. http://www.appleinsider.com/articles/07/10/12/road_to_mac_os_x_leopard_time _machine.html * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived
[CGUYS] Details on Apple's Time Machine
This is a long article and the first part is a history of backup strategies (something not everyone will find interesting). However, after that it goes into a lot of detail about Time Machine. This is a big deal for Apple and they have invested a lot in making it work by making a very interesting change to how its file system works. They have created a new type of alias (shortcut) that keeps a file around as long as any one of these new pointers exists and lets them stack up multiple instances of the same file. This allows them to make many snapshots of your files while automatically eliminating duplicates. Very interesting. http://www.appleinsider.com/articles/07/10/12/road_to_mac_os_x_leopard_time _machine.html * == QUICK LIST-COMMAND REFERENCE - Put the following commands in == * == the body of an email send 'em to: [EMAIL PROTECTED] == * Join the list: SUBSCRIBE COMPUTERGUYS-L Your Name * Too much mail? Try Daily Digests command: SET COMPUTERGUYS-L DIGEST * Tired of the List? Unsubscribe command: SIGNOFF COMPUTERGUYS-L * New address? From OLD address send: CHANGE COMPUTERGUYS-L YourNewAddress * Need more help? Send mail to: [EMAIL PROTECTED] * List archive at www.mail-archive.com/computerguys-l@listserv.aol.com/ * RSS at www.mail-archive.com/computerguys-l@listserv.aol.com/maillist.xml * Messages bearing the header X-No-Archive: yes will not be archived
