Michael Salmon writes:
Jim Voll writes:
Jim Harm writes:
Could UNIX backups maintain the NT information, when you have the Legato backup agent running on the netapp box?
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When we have the Legato backup software running on the Netapp box it will capture both the Unix and NT attributes. This product is still under developement however.
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I have wondered since I heard that the client would written in Java who in their right mind would use Java for such an application. We have enough trouble getting the data off of our Auspexes (Auspices?) with a real sparc and yet you expect a virtual machine to be up to the task.
I understand why Java was chosen, I just don't understand why anyone thought that it would work.
It remains to be seen whether or not we're crazy, but perhaps I can convince you that we're not *completely* crazy.
I understand your skepticism, because running the entire backup data flow through Java would probably not result in acceptable performance.
Our idea is to use Java to execute the Legato daemons, and to direct the data movement, but to provide new primitives in WAFL that allow Java to say things like: "stream the data from this inode to this network connection." I'm not sure what all WAFL primitives Jim ended up adding to boost performance, but hopefully you get the idea. We're not talking about the normal Java I/O library here.
So Java orchestrates the backup, but the data flow itself goes directly from WAFL to the network, using the same basic code path as NFS, CIFS or HTTP.
Dave