I have a large file server that has a 1.5TB partition that is using about 1TB of the available 1.3TB. The volume is using Shadow Copies, but they disappear each time a defrag runs. I found a MS KB article that explains this is a problem with small cluster sizes. I'm looking for a solution to increase the cluster size to 16k or higher.
The server is running Windows Server 2003 R2 x64, obviously formatted NTFS.
This server is being used for DFS Replication so I don't want to have to go through the process of backup and restore as this triggered complete DFS repopulation last time. Also, backups fail miserably using NTBackup with that volume of data and take forever to get anywhere. They never get past about 650GB.
What tools or options are there for upping the cluster size in NTFS?