Mac OS X Snow Leopard getting ZFS
Something interesting has shown up on Apple’s Snow Leopard preview site–looks like the operating system will be getting ZFS.
In case you’re not familiar with it, ZFS, once rumored to be coming to Leopard, is a file system designed by Sun for their Solaris operating system.
ZFS, or “Zettabyte File System”, has some advantages over other file systems such as:
- Storage capacity. ZFS uses 128-bit addressing and can store 256 quadrillion zettabytes. One zettabyte is 2 to the power of 70 bytes, or one billion terabytes, which puts the capacity somewhere around OMG ITS HUGE, or 256 billion terabytes.
- Data security and integrity: ZFS uses copy-on-write technology so existing blocks of data are not overwritten. Instead, new blocks are written and their checksum stored with a pointer to them. It also is constantly searching for checksum/data mismatches and has something called “autonomic computing capacity”, which means it is self-healing.
Sun calls it “the Future-proof File system”.
For more info about ZFS check out Sun’s page here.