I have one RAID 1+0 array available. My primary concern is data integrity. The general instruction is to put pg_xlog on another filesystem, seperated physically from the database files, for maximum performance. That is what I had planned on doing. However, it dawned on me that there could be a serious problem if the pg_xlog got corrupted or was lost in a hardware failure. It might not matter one bit that the actual data files are safe and sound if the transaction log is corrupted.
Is protecting pg_xlog as important as protecting the rest of the data files? Will the performance hit, which happens when one keeps pg_xlog on the same filesystem as the database, be substantial enough to warrant spending more money on another array of drives to use for pg_xlog? CG __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes http://hotjobs.sweepstakes.yahoo.com/signingbonus ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
