Redirecting the File System Partition

When you redirect a file system partition, a ToolTalk database can logically read and write ToolTalk data from and to a read-only file system partition by physically accessing a different file system partition. To redirect a file partition, you need to map the partitions to where the ToolTalk database will write. On the machine running the ToolTalk database server:

1. Create a partition_map file.

   For example:

   # Map first partition /cdrom /usr # Map second partition /sr0/export/home /export/home

   maps the read-only partition /cdrom to /usr, a read-write partition; and maps the read-only partition /sr0/export/home to /export/home, a read-write partition.

2. Store the map file in the same location at which the system ToolTalk Types databases are stored.

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   Note –

   A file partition defined in the TT_PARTITION_MAP environment variable has a higher precedence than the file partition defined in this map file.

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   The map file is read when the ToolTalk database server is started, or when the database server receives a USR2 signal. For detailed information on partition redirection see partition_map(4).