220 likes | 414 Views
BACKUP/EXECUTIVE : Where Data Protection is Headed. A look ahead. Pierre Dorion Business Continuity Consultant Mainland Information Systems Ltd. Calgary, Alberta Canada. Definitions. Backup:
E N D
BACKUP/EXECUTIVE:Where Data Protection is Headed A look ahead Pierre Dorion Business Continuity Consultant Mainland Information Systems Ltd. Calgary, Alberta Canada
Definitions • Backup: • The action of taking a copy of the data and writing to an alternate location for safeguard. Data backed up must typically be restored (written back) for access. • Data protection: • The act of protecting data from potential loss, corruption, alteration, etc. This can be achieved through backups, data replication, high availability or redundant storage components.
Simpler times… • Not so long ago data protection meant: • Making sure there was a tape in the drive before leaving • Applications were likely shutdown for the backups • We had all night to backup • Tape operator was an entry-level position
Today’s IT environments • Terabytes of data to protect • Multiple applications to support the business • Shrinking backup windows • 24X7 access to data • High-end skills requirements
IT & business trends • On-demand computing • Business intelligence • Portal solutions • Distributed environments
New paradigms & drivers • Legislation & regulations compliance • ILM (Information Lifecycle Management) • Business continuity
Compliance – The latest driver • New legislations are taking data protection beyond business requirements • Prompting the review of existing B&R infrastructure, policies and procedures • Generating increased storage requirements beyond usual growth • Will have to rethink storage strategy to accommodate capacity and recoverability
Information Lifecycle Management (ILM) • Vendors offer only partial solutions at this time • A lot of work remains in order to offer an end-to-end solution • Still a very manual process • Requires a good understanding of the value of data, retention policies and requirements • Will be necessary to exert some form of control on data growth
Business continuity • Every organization will need some form of recovery strategy • Tighter RTOs keep driving new technologies and data protection strategies • Direct links between business continuity and compliance are emerging • Again, requires a very good understanding of data retention policies and requirements
Data replication -The way of the future • Data replication will gain more popularity as the primary means of data protection • Allows the creation of data point-in-time copies ready to be accessed within tight RTOs without requiring a restore operation • Can be supplemented by tape backup for low-cost, offsite storage • Copies can be backed up without accessing the production copy • Can be extended to remote site copies at the hardware or software level
Data replication - Scenario 1 Disk-to-disk $
Data replication - Scenario 2 Disk-to-disk-to-tape $$
Data replication - Scenario 3 Disk-to-remote disk-to-tape $$$
Data replication - Scenario 4 HA Cluster + disk-to-remote disk-to-tape $$$$
Leveraging technologies -Data storage • Central storage & SAN (Storage Area Network) • NAS (Network Attached Storage) • Storage intelligence
Central storage & SAN • Central data storage is at the core of many emerging technologies • Allows data replication at the storage device level • Numerous new technologies
NAS – Network Attached Storage • Does not require a costly front end • Data is accessed through a TCPIP network • Reduces the cost of deployment • Back-end disk can be provisioned from a central storage array or SAN
Storage intelligence • Storage virtualization • Sun’s QFS/SAM-FS • IBM SVC & SAN File System • HDS • Compaq/HP • FalconStore Datacore, CommVault & many more • However, highly competitive market often result in the hasty release of partial solutions
Leveraging technologies - Data transport • Fibre channel – Offers bandwidth, low processing and long distance but at a cost • iSCSI – The new contender which relies on proven TCPIP to encapsulate SCSI protocol – More affordable but higher processing • NDMP – Network Data Movement Protocol. Specific to NAS.
Disk vs. tape • Is tape dead? • Because of the generally slower performance of the media due to sequential data access, tape is slowly falling out of favor as the preferred backup media • Is disk the only way? • Decreasing cost, multi-session and random data access capabilities have made disk an increasingly popular backup media. However, disk still presents some offsite storage challenges. • How about backups to disk?
The new order • We need to change how we look at data protection • Data protection must be integrated with the SDLC (System Development Life Cycle) • We must close the gap between both the business and IT’s view of the data • We must establish the value of the data and make it common knowledge within the organization
Not all data is critical • Why should it all be stored on premium storage? • Tiered storage with QoS, performance, availability and redundancy aligned with the value of the data • Business continuity planning is a good way to establish the value of data