> Yes, I know that. I am very familiar with how RAID6 works. RAID5 > with the hot spare already rebuilt / built in is a good enough answer > for management where big words like parity might scare some PHBs. > >> In terms of storage cost, it IS like paying for RAID5 + a hot spare, >> but the protection is better. >> >> A RAID 5 with a hot spare built in could not survive 2 simultaneous >> drive failures. > > Exactly. Which is why I had said with the hot spare already built in > / rebuilt. My apologies. The 'rebuilt' slant escaped me. Thats a fair way to cast it. > Geeze, pedant much? Of course! -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance