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218 Sun StorageTek SAM Archive Configuration and Administration Guide • Version 4, Update 6, 04/07

CODE EXAMPLE 8-1 shows the mcf file.

CODE EXAMPLE 8-2 shows the /var/opt/SUNWsamfs/devlog file.

Device 43 is the historian.

When to Use the Device Log

The device log can easily generate many log messages, especially when all logging

options for all devices are turned on and there is a great deal of device activity.

Initially, the device log settings are set to the following default values:

If you suspect there is a problem with one of the devices configured within a Sun

StorageTek SAM environment, it is appropriate to enable additional logging events

for that device. Also, it is appropriate to enable device logging if you are advised to

do so by your service provider. In these situations, set the event to detail.In

extreme cases, you might be advised by your service provider to set the event to all

for a device. This adds additional log information. However, in general, it is

probably not useful or practical to run the system with excessive logging.

The device log information is collected automatically when the samexplorer(1M)

command is issued. This allows the file system service to review any possible device

error information as part of problem analysis activity.

CODE EXAMPLE 8-1 Example mcf File

/dev/samst/c1t5u0 40 hp hp40 - etc/opt/SUNWsamfs/hp40_cat

/dev/samst/c1t4u0 41 mo hp40 -

/dev/samst/c1t6u0 42 mo hp40 -

CODE EXAMPLE 8-2 The devlog File

# pwd

/var/opt/SUNWsamfs/devlog

# ls

40 41 42 43

err retry syserr date

1 2 ... 237 238 239 240 241 242 243 244 245 246 247 ... 287 288

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