newfs parameters for a 500 GB volume ?
Jan.Grant at bristol.ac.uk
Thu Apr 3 01:04:10 PST 2003
On Thu, 3 Apr 2003, Heinrich Rebehn wrote:
> I am repeating the post below, because it obviously hasn't made it to
> the list (at least i did not get it back from the list).
> Can someone please give me some advice, because i will be setting up the
> discs today.
> Thank you
> I am going to set up a RAID 0 array with two 250G drives, making 500G.
> Which newfs parameters would you recommend for it?
As many cylinders per group as possible. I think newfs has an "infinity"
setting to pick the right number.
> I am afraid of ending up with a fs with Gigs of space and no inodes
> left, or a fs that is heavily fragmented and slow.
> Reading the newfs manpage didn't quit help me, it explains all switches
> The files on the volume will be 2 MB average.
There's a "bytes per inode" setting that you can plug this figure into.
You might want to be a little more generous with inodes than that (give
yourself some elbow room). You need inodes for symlinks and directories
> Thank you for any suggestions or pointers.
jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/
Tel +44(0)117 9287088 Fax +44 (0)117 9287112 http://ioctl.org/jan/
"...perl has been dead for more than 4 years." - Abigail in the Monastery
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