With the release of NetBackup 6.5.2, Symantec has created a new watershed event: they have released (to my knowledge) the first mainstream backup features that require disk to use them. Click Read More to learn more.
NetBackup released Puredisk a while ago, and that was obviously a disk-only backup product. But that is a product designed for the remote office, so I'm not putting it in the "mainstream" category.
With 6.5.2 (released a few days ago), and 6.5.3 (due soon), they have released features for Sharepoint and Exchange that require disk. Specifically, they finally have the ability to perform a single information store backup, and still do granular restore. With Exchange, that means no more mailbox (AKA "brick level") backups in order to be able to restore mailboxes or messages. They can (once 6.5.3 comes out) extrapolate mailboxes and messages from the information store backup, without having to do a separate backup. The same is true of Sharepoint (in the current releas, 6.5.2). They can perform a single backup of the entire Sharepoint server, while still being able to restore individual elements, such as documents.
Both of these features are very welcome, but it's interesting that in order for them to work, the backups must be sent to a disk storage unit, or open storage (OST) storage unit. Backing up to tape or VTL won't cut it.
That's interesting, don't you think? It's an important point in backup history, as far as I can see. It sure is a sign of the times.