>>>>> "JAR" == J Andrew Rogers <[EMAIL PROTECTED]> writes:
JAR> The LSI MegaRAID reading/writing/caching behavior is user configurable. JAR> It will support both write-back and write-through, and IIRC, three JAR> different algorithms for reading (none, read-ahead, adaptive). Plenty JAR> of configuration options. For PG max performance, you want to set it for write-back and read-ahead (adaptive has been claimed to be bad, but I got similar performace from read-ahead and adaptive, so YMMV). -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D. Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-301-869-4449 x806 AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/ ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
