Consider these guidelines before creating a new master device:
Preserve the original. When creating a new master device, preserve the original device in case you need information from it. First do all the work on a new device (a filesystem is adequate for this.) Once the server is running, you can either repeat the same work on the original master device or copy the new device with an operating system utility, such as dd (Unix).
Keep tempdb on master. If you previously moved tempdb off the master device, sysusages for master will be nonstandard if the master database was altered after moving tempdb.
Maintaining tempdb on the master device ensures a standard master device layout that you can restore conveniently if the device is lost. It is recommended that you take this opportunity to move tempdb back to the master device. For details, refer to TechNote 2829 in the Technical Library at http://www.sybase.com/detail?id=2829.
To create a new master device:
Create a new master device/configuration block. Use the procedure described in How to Build a New Master Device.
To find where the current master device path is set,
look in the “run_server” file under the
Sybase install directory. The default name
is RUN_SYBASE; if the server name
is not SYBASE, the filename is RUN_servername.
Copy the “run_server” file under the Sybase install directory, and then edit the copy as follows:
Change the -d<path_to_old_master_device> to reflect the <path_to_new_master_device> that you created in step 1.
Change the comment, # Size of Master Device: <old_master_device_size>”, to reflect the <new_master_device_size>.
