Harmonic MediaGrid, Руководство по установке и настройке

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Chapter 6 Accessing the Harmonic MediaGrid
© 2017 Harmonic Inc. All rights reserved. 190 Harmonic MediaGrid Release 4.1
Mounting a Harmonic MediaGrid File System Using Linux
readpri= abc Specify read data priority. The following types are supported:

bg
(lowest priority) = background

low
= low

nr
(default) = normal

rt
= real

sys
(highest priority) = system
CAUTION: Changing these settings from the default can have adverse
effects cluster-wide.
writepri= abc Specify write data priority. The following types are supported:

bg
(lowest priority) = background

low
= low

nr
(default) = normal

rt
= real

sys
(highest priority) = system
CAUTION: Changing these settings from the default can have adverse
effects cluster-wide.
iflist=
abc
:
def
Specify the interface(s) used to transfer data. Refer to Enabling Multi-NIC Usage on
Linux for details.
allnic Specify use of all system interfaces. Refer to
Enabling Multi-NIC Usage on Linux
for
details.
noopendelete This option prevents the deleting or renaming of 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.
noflushonclose This option prioritizes the file close operation and delays the transfer of modified
data to the server (the transfer of data typically, but not always, occurs within a few
seconds). This may be useful when you are writing to a large number of files, and
other clients do not need immediate access to the files after you have closed
them.
mdsconn= n Specify the maximum number of ContentDirector connections. Supported
numbers are 8 >= n <= 32. The default is 8. Increasing the number may improve
the performance of large numbers of metadata operations.
throughput This option improves Linux FSD throughput and sets the following values:

readahead is 16

mdsconn is equal to 16

number of cache write thread is 16
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.
Table 6–2: Linux FSD Mount Options
continued
Option Description