Avamar 5.0 Exchange Client User Guide.pdf - EMC Community ...

Capabilities and LimitationsINTRODUCTIONRecommend Restoring an Entire Folder to an Empty Folder. Restoringindividual messages within an existing Exchange folder is possible but is notrecommended. Because duplicates messages could be created when restoring topopulated folders, the best practice is to:1. Create a temporary dedicated Exchange folder for restoring messages (forexample, “restored-messages”).2. Restore messages to that folder.3. Use Outlook search and sort features to locate the message or messagesyou want to add back into your Exchange mailbox.NOTE: This limitation applies to the Exchange Messageplug-in only.Initial Message Level Data Deduplication Might Be Low. Initial messageleveldata deduplication might be very low across folders and mailboxes. This isparticularly true for small messages. The reason for these initial low levels of datadeduplication is that each message contains an embedded globally-uniqueidentifier and messages tend to be very small units (usually less than 20KB). Thismeans that each message is effectively unique to Avamar. Data deduplicationlevels following initialization will be higher because messages that have notchanged since the last backup will not be sent to the Avamar server.NOTE: This limitation applies to the Exchange Messageplug-in only.Browsing More than a Few Thousand Messages Might BeSlow. Attempting to browse a folder that contains more than a few thousandmessages might result in slow performance. Actual performance has beenobserved to be approximately 48 messages per second.NOTE: This limitation applies to the Exchange Messageplug-in only.Handling of “/” and “\” in Exchange Object Names. It is generally a badpractice to create Exchange objects with forward or backward slashes embeddedin the object name. However, the Avamar Exchange Client will attempt to handlethese situations as gracefully as possible, subject to the following limitations andknown behavior:1. Forward and backward slashes in mailboxes, folders and the subject linecan be backed up and restored properly. However, if you attempt to browsefolders or messages that contain forward or backward slashes, thefollowing substitutions are made:• “/” is replaced with “/”• “\” is replaced with “\”AVAMAR 5.0 • AVAMAR EXCHANGE CLIENT USER GUIDE 14