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If this describes your business, you should read on.

Data Storage Requirements
High availability requirements, low tolerance for downtime with your applications
Low tolerance for any data loss
Recovery Point Objective less than one day
Organizations who depend on information and systems to conduct business (knowledge based industries)
Mission critical billing systems
ERP systems considered mission critical

Defining a Storage Area Network

SAN (Storage Area Network) - SANs connect devices through a network of switches, hubs, routers and servers to facilitate the transmission of raw blocks of data. From these criteria, SANs can guarantee compelling advantages: storage consolidation, centralized management, improved data access, flexibility for growth, security, data movement overhead taken off the server and backup.

Data on a SAN is contained in packets. These can be made to contain any type of data desired, since the data is raw. This leaves room for many types of data (for example, bytes, video, files, audio, etc.) to be sent concurrently across a SAN, much like any other network.

SANs are used to create a fabric of components including hubs, switches and gateways/routers to connect storage devices. Application and transaction servers attached to the SAN create what appears to be a pool of storage.

There are several, most-commonly discussed advantages that a SAN has over using a single network for all applications:

Centralized Storage

Since SAN resource management is centralized, physical storage devices are virtually isolated from what the client can see. This "big-picture" management results in better use of the disk and tape resources and allows more flexibility for distributing and reconfiguring resources.

Superior Connectivity

A storage area network offers much faster and more robust network connectivity than DAS (direct attached storage) and NAS (Network Attached Storage).
SAN connect at either 1 gb 2 gb speeds using higher performance low latency fibre channel connectivity.
DAS typically connects a 160 mb per channel for SCSI, and NAS typically connects at 100 mbps Ethernet.

Scalability

By removing general-purpose traffic (end-user data such as e-mail, etc.) from the network, the SAN servers and storage devices can dedicate resources to managing and supporting only I/O traffic. Since ongoing operations are not affected, storage capacity can grow and storage performance can improve.

TELUS Storage Solutions

Managed Backup

TELUS Managed Backup Service offers co-location and customer managed hosting customers the ability to have their data backed up in a consistent, reliable and secure manner without incurring the cost of implementing their own backup solution. Clients who wish to subscribe to this service must also subscribe to the Dedicated Hosting Co-location or customer-managed service offered at our AB, ON and BC data centers. There are two primary options that will be made available to customers:

Option A - A full backup will be done once weekly (seven days), with incremental backups on the other days. The customer will have the ability to restore data to any specified daily backup date in the past two weeks or any full backup date in the past four weeks.

Option B - A full backup will be done once a week (every seven days), and the customer will have the ability to restore data to any specified weekly backup in the past four weeks.
The solution is based on Netbackup from Veritas, and will require the installation of an agent (software) on the customer's server(s).


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