Re: Info needed for File System Development
Re: Info needed for File System Development
- Subject: Re: Info needed for File System Development
- From: John Davidorff Pell <email@hidden>
- Date: Mon, 30 Apr 2007 15:33:03 -0700
Hi,
This sounds much like you're trying to add full journaling to HFS+.
Is this a fair characterisation?
JP
On Apr 30, 2007, at 5:41 AM, Shailesh Parulekar wrote:
Firstly,Thanks all for extending your help.
About, need of our product:: At a very high level, I wish to
intercept the I/Os (essentially Writes) made to a set of files and
store the changes in my secondary storage so that in the event of
machine crash user should be able to reconstruct his/her files with
the help of the product. In general terminology it is Continuous
Data Protection (C.D.P.)
My intention is to track the block changes that happen to the files
and have my meta data pointing to the old (changed) blocks so that
I get to construct various versions of the files from my meta data.
As and when plans are crystallized I will have more concrete
questions to chalk down. For now I just need to get started with
the Mac OS X Internals and think of possible avenues to meet my
requirements.
Thanks again,
--shailesh parulekar
From: Michael Smith <email@hidden>
To: Shailesh Parulekar <email@hidden>
CC: email@hidden
Subject: Re: Info needed for File System Development
Date: Sun, 29 Apr 2007 14:43:39 +0930
On Apr 26, 2007, at 6:13 PM, Shailesh Parulekar wrote:
I need to develop a Filter driver to plug-in into the MAC File
System in order to 'filter' the read/writes to the files and
process the same as per the need of our product.
What are the "needs of your product"?
= Mike
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