Nfs Async/Sync Settings; Nfs Locks - HP StorageWorks NAS 1500s Administrator's Manual

NFS async/sync settings

As mentioned in a previous section, there are two versions of NFS: Version 2 and Version 3.
Version 3 supports additional file operations that Version 2 did not have, such as asynchronous
file operations.
To indicate whether to use asynchronous or synchronous write settings:
1. From the WebUI, access the NFS Protocol Properties menu by selecting Shares,
2. In the NFS Properties menu, select NFS Async/Sync Settings. The NFS Async/Sync
3. Select the desired write setting. The default setting is Synchronous writes.
Note:
performance but will reduce data integrity as the data is cached before being written to disk.
Changing the write state causes the NFS service to be restarted. Notify users before toggling this
setting.
Figure 61: NFS Async/Sync Settings page

NFS locks

NFS supports the ability to lock files. File locking helps prevent two or more users from
working with the same files at the same time.
NFS locking depends on the software application components to manage the locks. If an
application does not lock a file or if a second application does not check for locks before
writing to the file, nothing prevents the users from overwriting files.
NAS 1500s and 500s Administration Guide
Sharing Protocols. Select NFS Protocol and then click Properties. The NFS Properties
menu is displayed.
Settings page is displayed.
Using synchronous writes allows for greater data integrity. Asynchronous writes will increase
Microsoft Services for NFS
123