We are using Biztalk 2004 since 2006 and at past we had not that much problems but for 4 months at peak days the system behave weird.
First I thought the reason have to be SQL servers I/O problem and bought 4 disks to set RAID10. Then move our databases to this new disks. by that way our Biztalk server's DB and application DB seperated but this doesn't solve our problems. Then I realise that Biztalk's DBs are huge for a good performance.Then I deleted Messagebox and tracking by using these 3 commands:
bts_CleanupMsgbox
bts_PurgeSubscriptions
dtasp_CleanHMData
And shrink these DBs but still problem is not resolved.
As I said before nothing has changed at configuration but I don't know why we are getting trouble for last 4 months.
What can I look more to fix that problem?
