SpaceGuard SRM vs. Native Windows
Quotas

SpaceGuard SRM offers far more control over user disk space consumption
than the standard native Windows 2000 and 2003 quotas. By using directory
quotas, SmartQuota technology, extensive alerting capabilities (SMS, pager,
popup, email, SNMP, eventlog), quotas on NT environments and rapid deployment
and configuration options,
SpaceGuard SRM surpasses Windows 2000/2003 quotas in functionality,
performance and ease of use.

Directory Quota Features

	Windows quotas	SpaceGuard SRM
Directory based quotas
Multiple disk quota limits
SmartQuota technology
Auto-Add disk quotas
Quota support for NT
Quota monitoring on FAT drives
Free definable alerts per limit
Configurable disk quota policies
Quota limits based on reference values (%)
Quota limits based on absolute value
Quota limits based on directory size (%)
Quota limits based on disk size (%)
Quota enforcement

Alerting
Features

	Windows quotas	SpaceGuard SRM
Popup alerting
E-mail alerting
Pager and SMS alerting
Event log alerting
Command line actions
Repetition and delay on all alarm actions
Execute alerts when exceeding quota
Execute alerts when dropping below disk quota limit

Other
Features

	Windows quotas	SpaceGuard SRM
Command line interface for scripting
Easy API for application integration

Multiple disk quota limits:

Each disk quota can have one or more limits. A limit is a percentage based
on the disk quota size. If you have for example a fixed disk quota size of 50MB and
you define a limit of 100% and assign an alert, the alert will be executed
when the 50MB has been exceeded. This way, you can assign multiple limits
to a single quota, for instance:

Fixed disk quota size, 50MB:

Limit 1: 80%, send a popup to the user assigned
to the quota. (executed at 40MB)

Limit 2: 90%, send a popup to the administrator. (executed at 45MB)

Limit 3: 100%, revoke
the write access of the user assigned to the quota. (exectued at 50MB)

Auto-Add quotas

An Auto-Add disk quota removes the need to add a disk quota each time a directory
is added. Each time a directory is created (inside a specified directory)
a quota is set on that directory using a predefined policy or custom sizes/limits.

The
SpaceGuard SRM service continuously scans the local computer's file
system for directory changes. If a new subfolder is created under the
branch where the Auto-Add disk quota is active, SpaceGuard SRM automatically
creates a new quota according to the Auto-Add policy. Also, whenever
subfolders under an Auto-Add quota root are removed, the related
quota
is also removed automatically.

This is extemely useful for large and
rapidly changing home directory shares. Each time a new home folder
inside for example G:UserData is
created, you want each home directory to get a 50MB disk quota with a standard
size and limit policy. All you have to do is create an Auto-Add quota
on G:UserData, customize the sizes and limits, and notice how SpaceGuard
SRM creates all quota's automatically.

Configurable disk quota policies

Quota policies are used to store configuration settings such as quota
size, limits and alarm actions in a single policy. When creating quota's
later on, you can use this policy for one-step deployment.

Quota enforcement

The revoke access alarm action can be used to deny write access to
the quota's directory for a single user or an entire group of users.
When linked
to a certain quota limit, SpaceGuard SRM will revoke the access rights
by setting explicit 'Deny' write in the directory's ACL.

When the limit is no longer
exceeded, SpaceGuard SRM will revert back to the original access rights
and restore
the ACL including the owner
to its original state. This also happens when deleting a quota that
was previously revoked by SpaceGuard SRM.

Pager and SMS alerting

The Pager-SMS alarm action can send standard formatted page and SMS messages
to any compatible pager and mobile phone worldwide. SpaceGuard SRM supports
a wide range of international telecom providers to relay these messages.