ZFS Recovery Tools

Tsu-Fan Cheng tfcheng at gmail.com
Thu Nov 20 13:23:43 PST 2008

  I was just reading stuff about ZFS, and wonder if it would be
beneficial for me to use it. I store a lots of multimedia files in my
HD, they usually have the size of > 1GB (e.g. 1.2, 1.7 or even
bigger), and my system is running UFS.
  so can I buy a new HD, say 500GB, and format it ZFS style and use it
along with other UFS? and will ZFS performs better than UFS in my
situation? Thank you!!


On Thu, Nov 20, 2008 at 2:51 PM, Wojciech Puchar
<wojtek at wojtek.tensor.gdynia.pl> wrote:
>> all the input from various users I assume zfs would be the file system of
>> choice for such large volumes?
>> Are there limitations or downsides using UFS on such a large volume?
> no, unless you will create it with default options.
> use -i big-power-of-two simply to have enough inodes for your files, but not
> 100 times too much. too much inodes=more wasted space AND VERY SLOW FSCK
> use -b 32768 or 65536 depending of your file's average size.
> -b 16384 will work too, but again fsck may be long.
> of course turn on softupdates.
> UFS performs excellent on large drives/volumes. not in theory but in
> practice, i use it every place, on volumes up to 3GB
>> Also are there any tools for recovery off ZFS volumes? Accidental
>> delete/format/corruption...?
> no.
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