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Archive Shuttle 11.3 - Administration Guide

Introduction Configuring Archive Shuttle Using HOTS Using the Archive Shuttle user interface Dashboards Manage Configuration Advanced configuration Monitoring Logging Reporting Journal Transformation migration Troubleshooting

Which Office 365 license to use for leavers or virtual journal

Archive Shuttle has ability to provision mailbox in Office 365 and set flags like “Legal Hold”, “Hide from GAL”, etc for “Leavers”, or “Virtual Journal” type of migrations.

There are several differences between each Office 365 Plan/License options. This can be checked here or here.

The biggest difference from the migration perspective is the mailbox size/storage limits as the data will be migrated there:

Feature

Microsoft 365 Business Basic and Standard

Microsoft 365 Business Premium

Microsoft 365 Enterprise E3/E5

Office 365 Enterprise E1

Office 365 Enterprise E3/E5

Office 365 Enterprise F3

User mailboxes

50 GB

50 GB

100 GB

50 GB

100 GB

2 GB

Archive mailboxes

50 GB

1.5 TB

1.5 TB

50 GB

1.5 TB1

Not available

Shared mailboxes

50 GB

50 GB

50/100 GB

50 GB2

50/100 GB

50 GB

Resource mailboxes

50 GB

50 GB3

50 GB

50 GB

50 GB

50 GB3

Public folder mailboxes

100 GB

100 GB

100 GB

100 GB

100 GB

100 GB

Group mailboxes

50 GB

50 GB

50 GB

50 GB

50 GB

50 GB

 

Click here for more information on storage limits.

Therefore, Archive Shuttle recommends to use Enterprise E3 or E5 licenses for migration as “Leavers”. If the mailboxes will not exceed 50GB, use an E1 license.

Enterprise E1 and all Microsoft 365 Business licenses include Exchange Plan 1 licenses. Enterprise E3 and E5 licenses include Exchange Plan 2 licenses. Click here for more information.

info

NOTEs:

·Use of an E1 license does not include data loss protection. Microsoft recommends to use an additional Exchange Online archiving service. For more information, click here. You may also need to confer with Microsoft to determine whether the terms of your licensing agreement are impacted by the legal hold feature.

·Review this associated article.

·Archive Shuttle also supports the government equivalent of each of these licenses mentioned.

Suggested values for splitting journal data

This article gives an indication of some suggestions relating to splitting of data when migrating with Archive Shuttle.

Virtual Journal Total Mailbox Item Count Limit

900,000 items

Virtual Journal Total Mailbox Item Size Limit (MB)

80 Gb, this way it is lower than the normal size allowed for a personal archive

Journal Split Base Folder Name

This is a customer/migration dependent, or can be left at the default

Journal Split Threshold

100,000 items, this way if it is ever necessary to open a mailbox it won’t cause too many problems if using Outlook.

Journal envelope processing

Prior to Enterprise Vault 10.0.3 journal envelope information was not returned by the Enterprise Vault API. In versions of Enterprise Vault prior to 10.0.3 a process called ‘Envelope Reconstruction’ is used to rebuild a journal message, where the API-retrieved item can be added, thus giving the entire P1 & P2 message.

Envelope Reconstruction does have a performance impact but is essential for maintaining data integrity and Chain of Custody for journal archive migrations.

In testing the performance impact it was observed that if extract performance was N with an Enterprise Vault 9.0.4 server doing the journal extract (and envelope reconstruction) and that machine was upgraded to 10.0.4, the extract performance would be between 4x and 6x faster than N.

Journal archive folder split settings

When migrating a large source journal archive into a target, you might want to implement and use Folder Splitting functionality in Archive Shuttle, as well as archive splitting. This article explains why.

When migrating from a source archiving system, such as Enterprise Vault, to a new target archiving system, such as Enterprise Vault, there is usually no need to split the source archive in terms of the archive itself, or into new folders (and subfolders).

However, if the migration is to Exchange or Office 365, then it is often desirable for several reasons:

·Office 365 and Exchange have limits on the number of items that can be stored in individual folders.

·Performance in relation to viewing folders that contain millions of items is poor when using Outlook-type clients (MAPI based).

·Mailbox or Personal Archive size limits on the target may prevent a large journal archive being ingestable into a single target container.

For these reasons, splitting at the folder level (which is a configuration of the Enterprise Vault Collector module) is desirable and easy to do. Splitting at the archive level by querying Enterprise Vault and counting the number and size of items in the journal archive per day, per week, per two weeks, or per month. Once a suitable splitting range has been defined, filters based on a date can be implemented in Archive Shuttle, and the source archive can be mapped multiple times to different target archives with different filters.

User Interface

When migrating a journal archive, using the Archive Shuttle folder splitting feature is recommended since many target environments have limits on the number of items that can be in a single folder.

These settings can be found on the Configuration > General System Settings page.

The settings are:

·Journal Split Base Folder Name: This is the name of the top-level folder that will be split when items are ingested into the target environment.

·Journal Split Threshold: This is the number of items that should be placed in each folder before a new folder is created.

FolderSplit

The settings above can be applied only for Enterprise Vault and SourceOne sources.

Other sources (like EAS, DAM/QAM, and PST) are not supported. This is because they are unable to recognize the journal archive as a specialized container and are treated like a normal archive. For EAS, DAM/QAM, and PST sources, the large folder setting named Split threshold large folders (except journal / folderless) can be applied on their journal archive.

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