> I don't know so much about FreeBSD's handling of this, but on Linux,
> there's pretty strong indication that _SOFTWARE_ RAID is faster than
> hardware RAID.

Certainly better than an Adaptec.  But not necessarily better than a 
medium-end RAID card, like an LSI.  It really depends on the quality of the 

Also, expected concurrent activity should influence you.   On  a dedicated 
database server, you'll seldom max out the CPU but will often max of the 
disk, so the CPU required by software RAID is "free".   However, if you have 
a Web/PG/E-mail box which frequently hits 100% CPU, then even a lower-end 
RAID card can be beneficial simply by taking load off the CPU.

Josh Berkus
Aglio Database Solutions
San Francisco

---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]

Reply via email to