Craig Ringer wrote: > PostgreSQL has to trust the hardware and the OS to do their jobs. If the > OS is, unbeknownst to PostgreSQL, flipping the high bit in any byte
Might not even be the OS - it could be the stars (through cosmic rays). http://www.eetimes.com/news/98/1012news/ibm.html '"This clearly indicates that because of cosmic rays, for every 256 Mbytes of memory, you'll get one soft error a month," said Tim Dell, senior design engineer for IBM Microelectronics. ' > The RAID controller might be "helpfully" "fixing" parity errors > in a RAID 5 volume using garbage being returned by a failing disk > during periodic RAID scrubbing. If your raid controller doesn't have ECC memory, and if IBM's right about those soft error stats, it might be doing more harm than good. -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
