On Tue, Dec 27, 2005 at 11:50:16AM -0500, Ron wrote:
Sorry. A decade+ RWE in production with RAID 5 using controllers as bad as Adaptec and as good as Mylex, Chaparral, LSI Logic (including their Engino stuff), and Xyratex under 5 different OS's (Sun, Linux, M$, DEC, HP) on each of Oracle, SQL Server, DB2, mySQL, and pg shows that RAID 5 writes are slower than RAID 5 reads
What does that have to do with anything? That wasn't the question...
RAID 5 is not a silver bullet.
Who said it was? Nothing is, not even RAID 10. The appropriate thing to do is to make decisions based on requirements, not to make sweeping statements that eliminate entire categories of solutions based on hand waving. Mike Stone
