Hi all. I have come across a problem that I can't answer or find a reason for. We recently migrated to a active/passive cluster and added a storage array to our SQL 2k5 database. Since doing this, we have started experiencing a Async_Network_IO problem that didn't exist prior to the migration. The select is returning approx. 2500 rows or 9 fields to cache them into a program. Before the move, the pull took about 25seconds, now the same program takes 15 mins to return the data. Server/Database background. Servers: -Dual-Dual Core XEON at 3.0GHz per core -4GB PC5300 RAM. -System Drives are 3 72GB SAS Drives -2 Public Gigabit NICs -1 Private Gigabit NIC for cluster and backups -Windows 2003 Ent. SP2 -SQL Server 2005 Std (9.0.3050) Storage array is a MSA500 with 14 drives. 2 - Raid 1 - Quorum 2 - Raid 1 - System Tables, TempDB and Log Files 3 - Raid 5 - Production DBs << Problem DB exists here. 4 - Raid 5 - Process Data 3 - Raid 5 - Future use This Database is in simple Recovery mood and stats are not updated automaticly. Tables are indexed and other than this one pull from a single table we have no problems that we can see. A side note that I noticed is that after clustering, when I add or change any of the login's, I see a delay in opening the properties for the logins. Any help you guys can give would be greatly appreciated. Thanks.