Real-time matters

Real-time Matters

We have heard some FUD coming from our friends at Nasuni about our file locking capabilities. Could that be to divert attention from what they offer?

Panzura is the leader in REAL-TIME global file locking. That means we provide the lock at the time of open, not eventually after the file is open as our friends from Boston do. So, with Panzura, if someone in Boston has a file open, another person in San Jose cannot simultaneously write to that file. No collisions, no issues. Nasuni “file locking” on the other hand happens eventually. In other words, the lock will eventually get to Boston, meanwhile, everyone else has made changes and, oops, collisions and corruption can occur.

The bottom line, real-time matters. Eventually only gets you “eventually in trouble.

Some Recent Panzura Innovations

Panzura is the leader in distributed cloud file system functionality including distributed file locking. Not only did we introduce byte range locking that actually works, we also introduced additional cloud file system functionality that no one else can offer:

  • Panzura SmartSync™ is simply the fastest way to move files between sites by transferring the least amount of data possible. Since each Panzura appliance has the metadata of every file in the distributed cloud file system, including a global dedup table, only the unique blocks of any file changes are sent to the receiving Panzura appliance without any need for compute or I/O. Nasuni uses RSYNC technology so they need to have the sender and receiver both use local system CPU and IO checksums before knowing what to send. In a highly collaborative environment, SmartSync enables Panzura to avoid cloud reads, saving significant WAN bandwidth and reducing the time to transfer files.
  • Distributed Change Notifications extend this NAS file change notification functionality to a distributed cloud file system. During operation, a Panzura appliance receives a request from a client to access a file in the distributed file system. The appliance determines that the file needs strong read-after-write consistency and sends a registration notification to the other appliances in the distributed file system to request immediate notification of any changes to the file.
  • Opportunistic Lock (Opp Lock) functionality has also been extended to a distributed cloud file system. Windows uses opportunistic locks so that clients can cache data locally, reducing network traffic, and improving response time. Panzura extended this same functionality so that it works across multiple clients in geographically distributed locations.

To learn more about Panzura innovations, visit our Technology Section on

Leave a Reply