I emailed Danial about this a few weeks ago.
The simple answer is yes. This will be trivial to implement. And very cool... despite my out-dated, unused ansi-c background, I'm reading the developer list emails simply because I think it sounds fantastic.
There is an option for OSF/Digital/Tru64 Unix called AdvFS that has a clonefs command that makes a read only copy of the file system that can be mounted like any other partition. We use it to get a good, coherant snapshot of large database files, if takes a few seconds and then everyone can get working again -- new/changed data uses new blocks and the directories and inodes point to the new blocks for these changes only and no longer have references to the old data (freed when the clone is dismounted and released), while we backup the database (hours even using DLT)... technically, there is no need to close the database, the snapshot will be good data, but the DB engine will freak out because it's not used to being able to trust a file system.
T.A.G.* You're IT
Inspired by Heinlin's 'Stanger in a Strange Land'
* - Hint: The "T.A." stands for "Thou Art"
There is still a law on the books in Indianapolis passed at the beginning of the century forbidding a man with a mustache from kissing anyone.
The rest of the state, on the other hand, resists this sort of silliness.
In the northern, rural part of the state, there is a movement of people who no longer carry their driver's licences, and instead, carry a hand written card declaring that they are tax-paying, law-abiding residents of a certain county. And have passed vehicle operations competence exams, and are free to drive on public roadways.
Indiana born and raised.
T.A.G.* You're IT Inspired by Heinlin's 'Stanger in a Strange Land' * - Hint: The "T.A." stands for "Thou Art"
Good post! I love physics, but Calculus and I have a hate/hate relationship.
A couple non-tech quickies:
1) This would make more sense for hover-car technology, less for starship.
2) I haven't noticed bright lights interfering with my television reception, and they're both in the electro-magnetic spectrum.
I don't have my unified field theory ready yet, but it seems like gravity shielding would have to be in the same gravonic spectrum and act vector-wise out of phase.
Try shining two flashlights on the wall and get them to canel out... this will give you an idea of how simple this process should be.
3) I hope I'm wrong, this would be so cool!
T.A.G.* You're IT Inspired by Heinlin's 'Stanger in a Strange Land' * - Hint: The "T.A." stands for "Thou Art"
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I emailed Danial about this a few weeks ago. ... despite my out-dated, unused ansi-c background, I'm reading the developer list emails simply because I think it sounds fantastic. ... technically, there is no need to close the database, the snapshot will be good data, but the DB engine will freak out because it's not used to being able to trust a file system.
The simple answer is yes. This will be trivial to implement. And very cool
There is an option for OSF/Digital/Tru64 Unix called AdvFS that has a clonefs command that makes a read only copy of the file system that can be mounted like any other partition. We use it to get a good, coherant snapshot of large database files, if takes a few seconds and then everyone can get working again -- new/changed data uses new blocks and the directories and inodes point to the new blocks for these changes only and no longer have references to the old data (freed when the clone is dismounted and released), while we backup the database (hours even using DLT)
T.A.G.* You're IT
Inspired by Heinlin's 'Stanger in a Strange Land'
* - Hint: The "T.A." stands for "Thou Art"
There is still a law on the books in Indianapolis passed at the beginning of the century forbidding a man with a mustache from kissing anyone.
The rest of the state, on the other hand, resists this sort of silliness.
In the northern, rural part of the state, there is a movement of people who no longer carry their driver's licences, and instead, carry a hand written card declaring that they are tax-paying, law-abiding residents of a certain county. And have passed vehicle operations competence exams, and are free to drive on public roadways.
Indiana born and raised.
T.A.G.* You're IT
Inspired by Heinlin's 'Stanger in a Strange Land'
* - Hint: The "T.A." stands for "Thou Art"
A couple non-tech quickies:
1) This would make more sense for hover-car technology, less for starship.
2) I haven't noticed bright lights interfering with my television reception, and they're both in the electro-magnetic spectrum.
I don't have my unified field theory ready yet, but it seems like gravity shielding would have to be in the same gravonic spectrum and act vector-wise out of phase.
Try shining two flashlights on the wall and get them to canel out ... this will give you an idea of how simple this process should be.
3) I hope I'm wrong, this would be so cool!
T.A.G.* You're IT
Inspired by Heinlin's 'Stanger in a Strange Land'
* - Hint: The "T.A." stands for "Thou Art"