Copyright © Acronis, Inc., 2000-2009 75net start “Microsoft Exchange Event”net start “Microsoft Exchange IMAP4”net start “Microsoft Exchange MTA Stacks”net start “Microsoft Exchange POP3”net start “Microsoft Exchange Routing Engine”Create batch files in any text editor (for example, name itpause_services.bat andresume_services.bat). Use Edit buttons to the right of Before data capture commandand After data capture command fields, to open the Edit Command window whereyou can browse folders to find the respective batch files or scripts. A single command canbe specified in the same window along with its arguments and working directory.It is critical to note that these commands, as opposed to Pre/post commands above,will be executed before and after thedata capture process, which takes seconds, whilethe entire backup procedure may take much longer, depending on the amount of data tobe imaged. Therefore, the database idle time will be minimal.Before/after data capture commands can also be used for other purposes, especiallyif VSS support is enabled. You may want to suspend an application other than a database,for example. The commands execution and the VSS actions will be sequenced as follows:“before” commands -> VSS Suspend -> data capture -> VSS Resume -> “after”commands.The backup process will run concurrently with your commands if you uncheck the Do notperform operations until the commands execution is complete box, which ischecked by default.3. Multi-volume snapshotThe preset is disabled.Enable the Multi-volume snapshot feature if you are going to back up data located onmultiple volumes and you must preserve its consistency (such as a database spannedacross the volumes). In this case, a single snapshot for all volumes is created, which willbe used for backup creation. When disabled, snapshots for volumes will be taken one byone.6.3.5 Compression levelThe preset is Normal.The data will be copied without any compression, which may significantly increase thebackup file size, if you select None as the compression level. However, if you selectMaximum compression, the backup will take longer to create.The optimal data compression level depends on the type of files stored in the archive. Forexample, even maximum compression will not significantly reduce the archive size if thearchive contains essentially compressed files, such as .jpg, .pdf or .mp3. However,formats such as .doc or .xls will compress more than other file types.Generally, it is recommended that you use the default Normal compression level. Youmight want to select Maximum compression for removable media to reduce the numberof blank disks required.
