Product specifications

ISR654605-00 A 1-1
1 Getting Started
In a typical storage area network (SAN), the storage array serves one or more
servers. When data is migrated from a source LUN to a destination LUN on a
different storage array or the same storage array, it is important to understand:
 Which applications and servers (or cluster) are affected?
 How is application data related to a physical storage?
 How does the server access old and new physical storage?
A single blade of the MPX200 can deliver up to 4TB/hr. migration rate. Following
the suggestions outlined in this guide may allow you to perform most migration
jobs using simple offline migration, while meeting application downtime
requirements. Thus, it removes the complexity of performing online data migration
using other data migration tools.
Terminology
This guide uses the following terms:
 Mount point: A node or a directory where application data is stored.
 Volume: A single, logical presentation of one or more physical disks.
 Physical disk. The raw disk device discovered and configured in the
operating system. The object represented in the operating system is usually
associated to a LUN on a storage array.
 Multi-pathing software. The LUN may be accessed through multiple ports
on a storage array. Each port of a storage array may be accessed through
multiple ports (adapters) in the server. Multi-pathing software in the host
manages the multiple paths to a LUN.