Symmetrix file system performance features
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Performance and Optimization
Enhanced system
audit and
investigation
Enginuity stores an Audit Log in the SFS. This enables improved
investigation, both at the system level and customer environment
level. Symmetrix Audit Log collects and presents a chronological list
of host-initiated Symmetrix actions and activities. Manual activities
(for example, physically removing/replacing a component) as well as
automatically initiated scripts and EMC’s Solutions Enabler activities
(for example, TimeFinder or SRDF routines), are tracked and
recorded in the SFS. This provides a means to oversee and historically
recall how and when a Symmetrix device is being used.
Enginuity also expands capabilities for host applications built on
SymmAPI
™
. Earlier, host applications were allowed to make entries
to a Symmetrix write-only buffer. Audit Log features now enable
Symmetrix ISVs and other service providers to use logged
information for their own reporting purposes. The built-in system
security in SymmAPI does not allow host applications to change
audit logs. This reduces IOSQ (I/O Supervisor Queue Time) exposure
and increases system performance.
An enhanced feature of the Symmetrix Audit Log allows the CE/PSE
to log Inlines commands to the audit log with a customer-meaningful
description. This ensures that customers are able to monitor and
create an audit trail for all work performed by EMC personnel.
Note: The “Symmetrix Audit Log” on page 185 contains additional
information.
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