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Adaptive Server devices and system databases
10 Adaptive Server Enterprise
When preparing a raw partition device, follow these guidelines:
• Do not initialize a database device on the partition that contains your
Sybase installation software. Doing so destroys all existing files on that
partition.
• A raw partition designated for use by Sybase cannot be mounted for use
by the operating system for any other purpose, such as for file systems or
swap space.
• After a Sybase configuration utility or the
disk init command has initialized
a portion of a partition as a database device, the entire partition cannot be
used for any other purpose. Any space left on the partition beyond the size
specified for the device becomes inaccessible, unless you drop and re-
create the device.
• For best performance, place the Sybase software and all disk devices,
including the
master device, on the same machine.
• To avoid any possibility of using a partition that contains the partition map,
do not use cylinder 0.
v Choosing a raw partition
1 Determine which raw partitions are available.
2 Determine the sizes of the raw partitions.
3 From the list of available raw partitions, select a raw partition for each
device, based on the size recommendations in Table 1-1 on page 9.
4 Verify with the operating System Administrator that the partition you have
chosen is available.
5 Make sure the “sybase” user has read and write privileges to the raw
partition.
Note For more information on choosing a raw partition, see your
operating system documentation.