DataKeeper for Windows All Documentation - SIOS

DataKeeper ComponentsThese tabs provide information on the mirror that has been selected.• The icon shows the state of the mirror, which provides more information than the icons and statesprovided in the Failover cluster UI.DataKeeper ComponentsSteelEye DataKeeper for Windows is comprised of the following components:• DataKeeper Driver (ExtMirr.sys) - The DataKeeper Driver is a kernel mode driver and is responsiblefor all mirroring activity between the mirror endpoints.• DataKeeper Service (ExtMirrSvc.exe) - The DataKeeper Service links the DataKeeper GUI andCommand Line Interface to the DataKeeper Driver. All commands to manipulate the mirror are relayedthrough the DataKeeper Service to the DataKeeper Driver.Important: Stopping the DataKeeper Service does not stop mirroring. Sending the driver a PAUSEmirror, BREAK mirror or DELETE mirror command is the only way to interrupt mirroring.• DataKeeper Service Log On ID and Password Selection - The DataKeeper Service Log On ID andPassword Selection allows you to select the type of account to be used to start the service. Domainand Server account IDs with administrator privileges allow improved disaster recovery when networkdisruptions occur.• Command Line Interface (EMCMD.exe) – There is an entire suite of EMCMD command options thatcan be used to operate DataKeeper.• DataKeeper GUI (Datakeeper.msc) - The DataKeeper GUI is an MMC 3.0 (Microsoft ManagementConsole) based user interface which allows you to control mirroring activity and obtain mirror status.• Packaging files, SteelEye Protection Suite scripts, help files, etc.The following diagram displays how the DataKeeper components interface with the NTFS file system andeach other to perform data replication.DataKeeper for Windows Technical DocumentationPage 3