- Complete Messaging Single Instance Storage (Exchange Server 2000, 2003, and 2007) --This option checks to see if attachments, message bodies and other components of messages have already been backed up and then backs up only one copy. This eliminates the need to back up each time the attachment and message are referenced. This can significantly decrease the size of your backups.
Note: Although Exchange Server 2010 no longer uses single instance storage, the Document Level Agent still supports backing up only one copy of a message sent to different recipients.
No Single Instance Storage - Without Single Instance Storage, an Exchange Server is scanned mailbox by mailbox, and copies of individual message bodies and attachments are backed up as they arrive, without any regard for data that may have been backed up already.
- Back up Only Local Public Folder Documents--In Exchange Server, public folders can include multiple public folder stores on many servers across the organization. As a result, when you select to back up a public folder, you could be backing up many public folder stores. To save time and maximize performance, this option lets you exclude remote public folder documents during public folder backups.
- Number of Threads--This is the number of threads you want to use to connect to MAPI per session. If you increase this number, it increases performance, but also increases CPU utilization. The default Number of threads value is 1.5 multiplied by the number of CPUs rounded down and the supported range is between 1 and 64.
- Thread Priority--This is the priority you want to set for your threads: low, medium, or high. If you increase the priority, the operating system increases the CPU cycles to the thread. If you increase the number of threads in the Number of threads field, you should decrease the thread priority to lessen the impact on your server.
- Maximum Backup Size--To allow an efficient flow of information during backup, data is stored in a transition queue. This setting lets you configure the size of this queue. The default Max queue depth value is 256 items and the supported range is between 32 and 1024.
- Maximum Restore Size--This sets the threshold for memory that SIS restores will use before saving objects to the temporary location you specify. If the amount of cached SIS data exceeds this value, you can increase the value to gain better performance. If the amount of cached SIS data exceeds the value you select, the restore is not affected, but a notification message appears in the activity log. The default Max Restore memory value is half of your system RAM and the supported range is between 32 and 1024.
- Retry Counter--If a MAPI error or time out occurs while trying to retrieve an object from Exchange Server, this setting lets you control the number of times you want to retry. This is useful for when your backups are competing with third-party applications or during periods of high volume activity. If a MAPI error or time out occurs, the object is skipped, but the backup continues and a notification message is displayed in the log location you specify. The default Retry counter value is 1 and the supported range is between 0 and 10.
- Retry Delay--If a MAPI error or time out occurs while trying to retrieve an object from Exchange Server, this setting lets you control the delay between retries. This is useful when your backups are competing with third-party applications or during periods of high volume activity. If a MAPI error or time out occurs, the object is skipped, but the backup continues and a notification message is displayed in the Log location you specify. The default Retry Delay value is 0 and the supported range is between 0 and 60.
- Log Detail Level--This sets the level of detail on the debug trace and log in the log location you specify. The log detail level determines the level of detail in the debug trace and log. This does not affect the level of detail in the Activity Log in the CA ARCserve Backup Manager window. The default log detail level value is 1 and the supported range is between 0 and 5. If you want to disable agent side logging, use 0. Otherwise, you should always use level 1.
Important! Do not change this value unless directed by a trained CA Customer Support technician.
- Job Continuation Level--If a job fails to complete, this setting lets you skip mailboxes and root public folders that already have been backed up and continue the job from the point of interruption. This is especially useful for continuing jobs in the case of a cluster failover. The default Job Continuation Level value is 1 and the supported range is between 0 and 2. 0 disables job continuation, 1 continues makeup jobs only, 2 continues any interrupted jobs.
Note: Because job continuation begins the job at the point of interruption and skips items that were already backed up in the original job, you should ensure that the skipped items were backed up properly in the original job and that they can be browsed from a restore view.
- Skip Log Setting--At the end of each backup job, a summary of each session is displayed in the Activity Log. If individual folders, messages, and attachments are not backed up, by default, the details will be listed in the skip log in the agent log directory. If you would rather view the skip log information in the Activity Log or if you want to view it in the Activity Log in addition to the skip log, this setting lets you configure the location. The default Skip Log Setting value is 0 and the supported range is between 0 and 2. 0 logs information to the skip log only, 1 logs information to the Activity Log only, 2 logs information to both the skip log and Activity Log.
Note: This skip log is also useful for tracking corrupt messages in an Exchange Server.
- Backup Additional User Properties--If you are using Exchange 2000 Server, Exchange Server 2003, Exchange Server 2007 or Exchange Server 2010, this setting lets you back up a greater level of user properties detail and determines what is restored when using the Create user if not existing restore option.
Note: For more information on restore options, see Document Level Restore Options.
If you do not enable this option, only the display name that is associated with the mailbox is backed up. This is useful if you will be using this user as a placeholder to perform an audit or test restore. If you do enable this option, most additional properties, such as first name, last name, fax number, and address information are backed up. This is useful for migration, but will increase the backup time.
- Disable Purge Option--When a backup job is created using the time based backup method, the Purge documents after backup option can be enabled so that documents are automatically deleted after they are backed up. However, since this option should be used with caution, you can enable the Disable Purge Option as a safety feature to override the purge and prevent an agent from pruning an Exchange Server.
- Append To Restored Mailbox--During restore, if you want to create duplicates of existing users and mailboxes in the same organization, you must append a string to the user and mailbox names. Enter the string you want to append in this field. Since the maximum character limit for user and mailbox names on some systems is 20 characters, try to keep the string short. If you do not want to create duplicates, leave this field blank.
Note: This option must be used in conjunction with the Create mailbox if not existing options. For information about Create mailbox if not existing, see Configure Document Level Restore Options.
- Log Location--If you want to change your log location from the default location, click Browse and select a new location.
- Temp Location--If you want to change your temp location from the default, click Browse and select a new location.
- Allow Brick Level Restore--Select this option to restore brick level backup data that was backed up using a previous version of the Agent for Microsoft Exchange Server.
- Configure Brick Level Agent--This option lets you open the Exchange Brick Level Agent Configuration dialog. If you selected the Allow Brick Level Restore option, you can click this button to configure the Brick-Level agent. To restore Brick Level backup data, you must create or verify a Brick Level account. For more information, see Create or Verify a Brick Level Account.
Note: This option does not apply to Exchange Server 2007 or 2010 systems.