Chris, > 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.
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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 controller. 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]
