GRASS VALLEY K2 SOLO -, Service Manual

Page: 45 / 106

09 April 2010 K2 Solo Media Server Service Manual 45
Chapter
3
Service Procedures
Topics in this section include the following:
• “About the write filter” on page 45
• “Enabling the write filter” on page 45
• “Disabling the write filter” on page 46
• “Committing a file to disk with write filter enabled” on page 46
• “Exporting log files” on page 47
• “Replacing a RAID 0 drive” on page 49
• “About networking” on page 49
• “Restoring network configuration” on page 50
• “Checking services” on page 60
• “Checking pre-installed software” on page 61
• “Making CMOS settings” on page 62
• “Using recovery images” on page 62
• “Using diagnostic tools” on page 67
About the write filter
The K2 Solo Media Server has a file-based write filter, which is a feature of the
Windows embedded operating system. With the write filter enabled, files can be
created, modified, and deleted, but these changes are held in a memory cache. When
the K2 Solo Media Server restarts, these changes are lost and the K2 Solo Media
Server returns to its original state. This protects the K2 Solo Media Server from
changes and increases on-air reliability. For any system configuration change the
write filter must be disabled otherwise changes are lost at the next restart.
Some directories, such as C:\logs, C:\Profile\config, and C:\Profile\ChannelSuites,
are excluded from write filter protection, so that channel configuration and logs are
saved. Do not attempt to alter this list of excluded directories. If you suspect that write
filter configuration has been altered, use the recovery image process to restore to the
default configuration.
To enable the write filter, the K2 Solo Media Server must be restarted. Likewise, to
disable the write filter, the K2 Solo Media Server must be restarted. You can enable/
disable the write filter remotely using the SiteConfig lock/unlock feature on one K2
Solo Media Server at a time or on a group of K2 Solo Media Servers all at once. You
can also enable/disable the write filter from a local K2 Solo Media Server.
Enabling the write filter
Prerequisite: