AssuredCopy Quick StartAssuredCopy Quick Start

Dot Hill Systems NDA Material

AssuredCopy - Basic Facts

• Licensed feature• Takes advantage of our snapshot technology

But does not need licensed snapshots to work properly Does not impact snapshot count at all

• Can copy up to 255 volumes• Requires an annual support contract

AssuredCopy - Ability to copy a point in time data capture of either a master volume or a snapshot to a completely independent volume.

Dot Hill Systems NDA Material

Licensed Feature

• Must obtain a license key to use this feature

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AssuredCopy - Copy

• Manage > Volume Management > Volume Copy Services > Volume Copy Select Vdisk destination Enter Volume Name

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AssuredCopy - Status

• Manage > Volume Management > Volume Copy Services > Volume Copy Status Shows detailed information about volume copy

operation Last line gives % complete

The volume copy operation copies the entire volume, block for block.

So a sparsely populated 100GB volume and a fully populated 100GB volume will take the same amount

of time to copy.

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AssuredCopy - Abort

• Manage > Volume Management > Volume Copy Services > Abort Volume Copy Select Vdisk destination Enter Volume Name

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Volume Copy Operation

• Only works with master volumes or snapshots Must have an associated snap pool

A snapshot is taken and the copy process starts Can not mount the snapshot taken for the purpose of creating a

volume copy

If you create the copy from a snapshot you can mount the volume

• Once the copy operation is completed the snapshot is deleted Unless the volume copy was initiated from a snapshot to

begin with

Dot Hill Systems NDA Material

Additional Points and Restrictions• Additional points

When a volume copy is initiated on a master volume or the original data corresponding to a snapshot, the master volume and/or snapshot can continue to be accessed and updated.

Volume copies initiated on the master volume do not count against the snapshot license count

• Restrictions The source and destination of a volume copy must both be owned

by the same preferred controller. While the volume copy is in process, the new volume cannot be

mounted for access. If the copy is from the modified data of a snapshot, the snapshot

must first be unmounted from the host prior to starting the copy, and must remain unmounted through-out the copy process.

Copies of a standard volume is not supported. Volume Copy and Rollback cannot happen at the same time for the

same Master Volume.

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Scheduling Tasks• Schedule Task

Starting Date Recurrence Constraints Expiration Name

• Capability to schedule either an AssuredCopy or AssuredSnap operation

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CLI Commands

• Volume Copy: Volumecopy

Initiates a copy of a master volume or snapshot to a new volume

show volumecopy-status Show status for the volume copies in process

abort volumecopy Abort the specified volume copy

Dot Hill Systems NDA Material

AssuredCopy

• Description Complete physical and independent copy of a data volume (i.e., volume

copy) Discrete (vs. continuous) action Copy of a master or a snapshot volume

• Benefits Data protection

Additional protection against vdisk or complete volume failure Non-disruptive use of production data

Mitigate resource contention and performance impact on production volume

• Applications Data Restoration Backup Development & Test Decision Support and Data Mining Data Migration

Protect against data loss or corruption

Dot Hill Systems NDA Material

Competitive Matrix – Quick Look  Dot Hill LSI Engenio HDS IBM

Platform 2730 1331/1333 AMS 100/200 DS4700

Product Name AssuredCopy R1SANtricity Volume

CopyShadowImage In-System

Replication SoftwareFlashCopy

Copy source volume Yes Yes Yes Yes

Persistent copy pair No Yes Yes Yes

Source volume available during copy process

Read/write Read only   Read only

Volume copy available on copy initiation

Read/write upon copy complete

No   No

Split Volume No   Yes  

# Target Volumes per Source Volume

255 per system; 127 per controller

8 9 8

# Target Volumes per system255 per system; 127 per controller

  4,096  

Intra-array creation - Alt. disk group diff. controller

No Yes Yes Yes

Scheduled Volume Copy Yes Yes Yes Yes

License Fee Yes Yes Yes Yes

License Model per subsystem per subsystem per subsystem per subsystem

Licenses Transferable No      

We do not maintain any changes that have occurred in the original volume once

the copy has started While the volume is being copied, the source volume is available for

read/write operations

The volume being copied must reside on the same controller. After the copy has

completed, the physical disks can be relocated to a separate sub-system

A full Competitive Matrix is available at www.dothill.com