Hi,

what exactly is the locking /concurrency control mechanism used in
NFS to prevent simultaneous updates in NFS ?

aarklon@gmail.com wrote:
> what exactly is the locking /concurrency control mechanism used in
> NFS to prevent simultaneous updates in NFS ?

"man nfs" would show you:

"The Network Lock Manager protocol is a separate sideband protocol used
to manage file locks in NFS version 2 and version 3. To support
lock recovery after a client or server reboot, a second sideband
protocol -- known as the Network Status Manager protocol -- is also
required.
In NFS version 4, file locking is supported directly in the main NFS
protocol, and the NLM and NSM sideband protocols are not used."

Toni
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