RE: Anyone using IBM's FastT900 SAN for Oracle DBs?

2003-06-18 Thread John Kanagaraj
Rich, BTW, are you RAID 0ing along with your RAID 1 or are you relying on the SAN cache for performance? Whole DB or just data? We are pure RAID 1 for the whole DB (along with the Apps). It was a long fight, but worth it,and I had a savvy SA on my side early on. John -- Please see the

RE: Anyone using IBM's FastT900 SAN for Oracle DBs?

2003-06-17 Thread John Kanagaraj
Rich, There are two big issues with backup of an OLTP VLDB such as an ERP database: Backup window, and redo generation during hot backup mode. Disk I/O and network degradation during backup are also issues, albeit to a lesser extent. While RMAN would obviate the redo generation part, your backup

RE: Anyone using IBM's FastT900 SAN for Oracle DBs?

2003-06-17 Thread Jesse, Rich
Thanks John, but I already know the generic issues with Oracle DB backup on SAN. That's why I was asking specifically about the FastT900. After some research, I've found out that there is an option called FlashCopy, which appears to be different than the third mirror approach, but am having a