Siemens V4.0 manual Restricting the user’s disk space, Functionality

Configuring Advanced Server for UNIX Restricting the user’s disk space

5.4 Restricting the user’s disk space

When configuring disks under UNIX, system administrators can limit the disk space that can be used by “normal” users.

Advanced Server for UNIX is configured by default to allow all free disk space to be used by all AS/X users.

From Version 4.0B, Advanced Server for UNIX can be configured optionally to observe the limit set under UNIX.

Furthermore, Advanced Server for UNIX supports the UNIX “quotas” function, which can be used to restrict the disk space available to users on an individual basis.

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The “quotas” function is currently only supported by UNIX on ufs file systems.

Since both functions use the same mechanisms under UNIX, the new functionality is likewise controlled by the “UnixQuotas” registry parameter. The following table clarifies the behavior of Advanced Server for UNIX depending on the different settings for the “UnixQuotas” parameter:

Value of	Usage of	Write under	Disk space	Display free
UNIXQuotas	Quotas	user ID of	usage	area
parameter	functionality
0	No	“root”	Total free area	Total free area
1	Possible, if	Mapped UNIX	Reserved area	Reserved area is
	supported by	user	remains free if	not displayed as
	operating		supported by	being free if
	system		operating system	supported by
				operating system

UNIX commands are used for “quotas” to allocate the disk space for the respective UNIX users. Should you require information on this topic, please refer to the UNIX system documentation (“System Administrator’s Guide”) or the example given below.

Product Manual U7613-J-Z815-6-76