Thursday, September 8, 2011

Some of the major Data Protection Technologies:

Some of the major Data Protection Technologies:
1.       Oracle Data Guard
2.       Oracle Secure Backup
3.       Hp Data Protector
4.       Snapshot Manager for Oracle – netApps-IBM
5.       Tivoli Flash Copy Manager - IBM

1.     Oracle Data Guard:
Major features:
Data Guard provides the management, monitoring, and automation software to create and maintain one or more standby databases to protect Oracle data from failures, disasters, human error, and data corruptions while providing high availability for mission critical applications
Data Guard's loosely coupled architecture provides optimal data protection and availability:
·         Database changes are transmitted directly from memory, isolating the standby from I/O corruptions that occur at the primary.
·         A standby database uses a different software code-path than the primary – isolating it from firmware and software errors that impact the primary database.
·         Oracle corruption detection insures that data is logically and physically consistent before it is applied to a standby database.
·         Data Guard detects silent corruptions caused by hardware errors (memory, cpu, disk, NIC) and data transfer faults, and prevents  them from impacting the standby database.
·         A standby database is used to perform planned maintenance in a rolling fashion, minimizing downtime and eliminating the risks inherent with introducing change to production environments.
Oracle Active Data Guard 11g extends basic Data Guard functionality by allowing read-only access to a physical standby database while continuously applying changes received from the primary database. This increases performance and return on investment by offloading ad-hoc queries, Web-based access, reporting, and backups from the primary database while also providing disaster protection.
2.     Oracle Secure Backup:
Oracle Secure Backup is a separate product with independent release schedule and versioning from that of the database.
Oracle Secure Backup is not integrated with any 3rd-party backup tools. Oracle Secure Backup is an alternative to those product offerings. 

Oracle Secure Backup 10.3 is tightly integrated with Recovery Manager (RMAN) supporting Oracle9i to Oracle Database 11g Release 2
Oracle Secure Backup provides key benefits:
• Fastest Oracle database backup to tape
• Built-in Oracle integration:
o Oracle Enterprise Manager (EM)
o Oracle Recovery Manager (RMAN)
o StorageTek tape devices
o Oracle Exadata Database Machine
�� Oracle-recommended backup software for Exadata
�� OSB, Exadata and StorageTek tape library performance / configuration validated
by Oracle Maximum Availability Architecture (MAA)
• Single technical support resource for entire Oracle environment
• Dynamic tape drive sharing between NAS / UNIX / Linux / Windows servers
• Policy-based backup management:
o Backup encryption: Native or hardware encryption options
o Vaulting (rotation of tapes between multiple locations)
o Tape duplication
o Migration from virtual tapes to physical tapes
Achieve 75%+ cost savings migrating to Oracle Secure Backup from comparable products for initial license costs and ongoing maintenance fees.

Oracle Secure Backup provides native, host-based encryption or hardware (LTO-4, LTO-5 and T10000B tape drives) encryption options.
RMAN backup encryption is performed within the database.
Oracle Secure Backup host-based encryption occurs on the database server (outside of database) or on the tape drive. OSB 10.3 backup encryption supports Oracle9i forward while RMAN backup encryption supports Oracle Database 10gR2 forward. Encryption key management differs as following:
• Oracle Secure Backup encryption keys are managed by OSB and centrally stored on the OSB Administrative Server
• RMAN backup encryption keys are managed by the Oracle database

OSB does not support  tape-backup directly.
However, Oracle databases have always supported disk-based backups via RMAN.

3.   HP Data Protector:
Solution features
HP is committed to providing technologically advanced data protection and disaster recovery solutions.
The HP Data Protector EBS features the following:
A robust backup solution that offers the lowest total cost of ownership in the enterprise space.
Easy deployment in heterogeneous environments and automated high performance backup and restore from tape or disk.
Advanced features such as Virtual Full backups and Synthetic Full backups.
Solution components
Solution components include:
Heterogeneous operating systems such as Windows®, HP-UX, Linux, Tru64, NetWare, Solaris, and AIX
Hardware platforms including Network Attached Storage (NAS), Intel, and AMD-based ProLiant
servers, blade servers, and RA-RISC based servers
SAN interconnects such as Fibre Channel switches, host bus adapters, and Fibre Channel to SCSI tape
drive interconnects
Fibre Channel disk storage such as the HP EVA, XP, MSA, and VA
Tape libraries such as the HP ESL-E Series, EML, and MSL
HP Data Protector
The Data Protector cell is a network environment that includes a Cell Manager and client systems that run agents. The Cell Manager is the "traffic cop" that controls the activities and Internal Database (IDB) within the Data Protector cell. It is not necessary to administer the backup and restore activities directly from the Cell Manager itself, because any client within the cell (as supported) can connect to the Cell Manager over the network and be used to administrate the activities of the cell. Client systems are imported into a cell and belong to a single Cell Manager. Multiple cells may exist, each with their own Cell Manager. This
environment may be managed by a single Manager of Managers or "MoM." Client systems run agents that are allocated according to what the client needs to do. For example, in a
typical EBS environment a client is installed with a Media Agent and a Disk Agent.
The Media Agent is installed on a server if that server is going to have direct access to a tape device for backup and restore.
The tape devices can be directly attached or allocated over a SAN. The Disk Agent is allocated to a server if that server is going to read data from a disk device, whether local or remote.

4.      SnapManager
Snap Manager leverages the following components:
1.     Snapshot™,
2.     SnapRestore
3.     FlexClone
The SnapManager for Oracle architecture includes the following architectural components:
                                                             i.      SnapManager host
                                                           ii.      SnapManager graphical user interface or command line interface
                                                        iii.      SnapManager repository
                                                        iv.      Primary storage system
                                                           v.      Secondary storage systems
                                                        vi.      SnapDrive for UNIX or SnapDrive for Windows
                                                      vii.      DataFabric Manager
                                                   viii.      Management Console
                                                        ix.      Protection Manager, and Operations Manager

5.  Tivoli Flash Copy Manager – IBM
Major features:
§  Faster backups without taking applications off-line
  Minimize downtime
§  Faster recovery time (RTO)
§  More recovery points (RPO)

§  What types of snapshots are there?
  Copy on Write (with various variations)
  Redirect on Write
§  Application Awareness
§  No Application downtime
§  Manages multiple snapshots on disk
§  Runs standalone, without TSM Server
§  TSM Server (tape backup) integration optional
§  Utilizes disk system snapshot capabilities (block level)
§  No second instance of supported DBs required
§  Does not require proxy server

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