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NFS Gateway properties

This topic provides information on the NFS Gateway parameters.

Server Name

Displays the name of the server you selected in the NFS Gateway Server Selection page.

NFS Gateway Status

Indicates the NFS Gateway status, which can be Running or Stopped. Click the Start or Stop button to start or stop the NFS Gateway.

Gateway Volumes

Click Volume list to launch the NFS Gateway Mounted Volumes page that displays the list of NFS Gateway volumes.

General

Shadow Volume

Specifies the name of the volume where shadow files are to be stored. Default = sys:

You can change this parameter only when the NFS Gateway status = Stopped. When the NFS Gateway status = Running, this parameter cannot be modified.

The shadow files are stored in shadowVolume:\gateway directory. The shadow volume specified with the nfsgy is used if shadowVolume parameter is not specified with the gymount command. The NFS Gateway does not load if the volume specified is not available.

Shadow Cache Size

Size of the shadow cache (in MB). Range : 8 to 32. Default = 8. For improved performance, we recommend you set the value to 32 MB.

Page Cache Size

Size of the page cache (in MB). Range : 8 to system limit. The maximum limit is based on the available system memory. Default = 8.

8 MB of page cache size is adequate to hold up to 50,000 entries in a single directory. If the number of entries in a single directory is greater than 50,000, we recommend that you increase the pageCacheSize value.

 

Log

Log File Size

Specifies the log file size (in MB). The maximum value can be 32 MB. Default = 4. If any invalid value is specified, default value is used. After the log file size reaches the set value, the contents of the log file (.log) are backed up as a .bak file.

The log messages specific to each volumes are saved as shadowVolume/gateway/volumename.log. The general log messages for NFS Gateway are saved as shadowVolume/gateway/system.log.

Log Level

Specifies the logging level to be enabled for the volume. Default = 1. Valid log levels : 0, 1, 2, 4, and 8. The values indicate the following:
0 = None
1 = Errors
2 = Warning, Errors
4 = Info, Warning, and Errors
8 = Debug, Info, Warning, and Errors
The logLevel = 8 is not recommended in typical cases. Use this only for debugging purposes.

Log Verbose

Enable this to log verbose information. Default = Unchecked (Disabled).

Log Flush Immediate

Enable this to force the log messages to be written to file immediately. Default = Unchecked (Disabled).
If this option is not enabled, the log messages are cached until the buffer is full.

Save/Apply

Click Save or Apply as applicable.

When you click Save, the changes are saved in the sys:\system\gystart.ncf. When you click Apply, the changes are saved in the sys:\system\gystart.ncf and also dynamically put into effect without stopping the gateway.

Refresh

Refreshes this user interface with the gateway parameters from the back end.

Cancel

Discards the changes and returns to the NFS Gateway Server Selection page.