Thu Dec 16 10:15:44 PST 2004 — Internal Packet Loss. Last night we discovered some rather severe packet loss in our server backend SAN network that affected a number of hosts. In particular, two of our SpamAssassin servers and both FTP servers were affected by this loss. This may have exhibited in problems using our FTP servers and some mail messages not being filtered by SpamAssassin. The other hosts affected by the problem do not support public services. We resolved the problem this morning when we found one of the SAN switches was flopping back and forth between it’s primary and secondary uplinks to the other switches. -Kelsey and Nathan