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Auspexian's avatar
Auspexian
Level 2
14 years ago

SFRAC

Hello all, Need your inputs to see what we really need? :-) Environment: Oracle RAC 11Gr2 on Linux with Netapp backup. Need to write to 2 netapp at the same time for data mirroring (Frame mirrori...
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  • Gaurav_S's avatar
    Gaurav_S
    14 years ago

    CVM can be installed without VCS however the management becomes a little difficult (my experience) .. you would  just have handfull of commands to diagnose like vxclustadm ...

    Again to my experience, this is sort of rare configuration.... major of CVM/CFS implementations go alongwith VCS only (specially on solaris).... This is because VCS has all the agents to control CFS/CVM ...

    Gaurav


Gaurav_S's avatar
Gaurav_S
Moderator
14 years ago

From SFRAC Install guide, some features why SFRAC could prove better over plain RAC

Veritas Storage Foundation for Oracle RAC (SF Oracle RAC) from Symantec
provides a robust infrastructure for Oracle Real Application Clusters (RAC) that
simplifies management of RAC databases. SF Oracle RAC integrates existing
Veritas storage management and clustering technologies into a flexible solution
for administrators.
About SF Oracle RAC

SF Oracle RAC is a storage management and clustering solution that enables you
to:

â–  Create a standard approach toward application and database management
in data centers. While other clusterware can only work with an Oracle
database, SF Oracle RAC incorporates existing Veritas storage management
and clustering technologies that provide flexible support for many types of
applications and databases. Administrators can apply existing expertise of
Veritas technologies toward this product.

â–  Set up an infrastructure for Oracle RAC that simplifies database
management while fully integrating with Oracle Cluster Ready Services
(CRS).

â–  Enhance scalability and availability with access to multiple RAC instances
per database in a cluster.

â–  Transition from a local high availability site to a wide-area disaster recovery
environment with primary and secondary sites.

â–  Back up and recover databases using volume-level and file system-level
snapshot technologies. SF Oracle RAC enables full volume-level snapshots
for off-host processing that reduce load on production systems, and file
system-level snapshots that involve efficient backup and rollback processes.

â–  Prevent data corruption at the storage layer with robust split-brain   <<<<<<<<<<< This one is important
protection.

â–  Increase scalability with high throughput and low latency technology for
use by Oracle Cache Fusion.

â–  Share all types of files, in addition to Oracle database files, across nodes.

â–  Increase availability and performance with dynamic multipathing (DMP),
which provides wide storage array support for protection from failures and
performance bottlenecks in the HBAs and SAN switches.

â–  Model and test cluster configurations without affecting production systems
using the simulator and firedrill clustering technologies.

â–  Optimize I/O performance through storage mapping technologies and
tunable attributes.


Gaurav