[rescue] Ultra 2 upgrade question...

Sandwich Maker adh at an.bradford.ma.us
Mon Apr 4 20:34:47 CDT 2005

" From: Phil Stracchino <phil.stracchino at speakeasy.net>
" Patrick Giagnocavo wrote:
" > I have had poor results with software RAID and Solaris.  Not sure
" > why... it does work, just slowly.
" You surprise me.  I have eight disks RAIDed with Solstice Disksuite (or
" whatever Sun's currently calling it) on a single-250MHz U30 running
" Solaris 9, and it can easily saturate a 100Mbit connection.
" That is, to be fair, just a stripe, not RAID5.

apples and oranges.  striping - especially across controllers - is a
great way to improve disk i/o.  raid5 requires the metadriver to
calculate/analyze ecc sums on the fly every time there's an i/o.
that's the penalty you pay for the ability to pull one of your raid5
disks out without crashing your system.
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh at an.bradford.ma.us                       and think what none thought

More information about the rescue mailing list