Chapter 6 Accessing the Harmonic MediaGrid
© 2017 Harmonic Inc. All rights reserved.
188
Harmonic MediaGrid Release 4.1
Mounting a Harmonic MediaGrid File System Using Linux
Viewing Quota Information from a Macintosh Client
To view quota information for a given Harmonic MediaGrid directory from a Macintosh client, use
the mgquota utitlity provided by Harmonic. For details, see
Using the mgquota Utility for the Mac FSD
.
Mounting a Harmonic MediaGrid File System Using Linux
Follow these steps to mount the Harmonic MediaGrid file system from a Linux computer. These
instructions assume you have installed the Harmonic MediaGrid FSD for Linux. Refer to
Clients to Harmonic MediaGrid Using ContentBridge
for instructions on mounting a Harmonic MediaGrid
file system without using the Harmonic MediaGrid FSD for Linux.
noopendelete
This option prevents other clients from deleting or renaming files which are in
active use (in the application “open” state) by this client. When listing this
option in the mount command, it will affect all files open on the volume mount
and no other client may remove or rename any of those files. By default, this
option is turned off.
Note: This is associated with the “Deny delete/rename of open files” option in
the Mac FSD GUI.
singlewriter
This option provides exclusive write access for applications on the client. This
means files cannot be opened
for writing
on another client system at the same
time. They can, however, be opened on other clients in read mode. By default,
this option is turned off.
Note: This is associated with Mac FSD GUI option, “Open files with exclusive
write access”.
maxdeferredclose=
n
Specifies the maximum number of handles on a per mount basis. The default
value is 64. Setting this to zero will result in the close system call blocking until
data is flushed to the Harmonic MediaGrid. Setting this to zero will increase
latency times when working with a large number of files
maxsmallfilesize=
n
Hint to pre-open prediction code. The default value is 1048576.
smallfilewindow=
n
Hint to pre-open prediction code. The default value is 500.
smallfilethreshold=
n
Hint to pre-open prediction code. The default value is 3.
cachefilesize=
n
Hint to pre-open prediction code. Specifies the maximum number of bytes to
pre-read for a file. The default value is 20971520.
maxpendingbulkclose=
n
Specifies the maximum number of handles for deferred close on a per driver
basis. The default value is 128. Setting to zero may result in the close system
call blocking until the handle is closed in the Harmonic MediaGrid. Setting this
to zero will increase latency times when working with a large number of files.
numberpreopen=
n
Specifies the number of files to open in advance based on prediction logic.
The default value is 8.
Table 6–1: Macintosh FSD Mount Options
continued
Option
Description
