On occasion, you might need to suspend LCR for a storage group. You need to suspend LCR should either the active or passive storage group copy for some reason become unavailable. Suspending LCR is also necessary if you need to seed the LCR copy (seeding is covered next in this chapter). Finally, you need to suspend LCR when you're performing an integrity check on the passive copy's transaction logs and database file, which is a recommended practice now and then.
|Note: Suspending LCR means that all log file shipping as well as log file replaying is halted. Suspending LCR is a straightforward process; it's done by selecting the respective storage group in the EMC, then clicking Suspend Local continuous replication in the Action pane. When you click this link, you'll need to confirm that you really want to suspend LCR. In addition, you'll have the option of specifying why LCR was suspended. This comment can be viewed by clicking the View Comment button on the Properties page of the storage group (shown in Figure 8.17).|
If you'd rather to suspend LCR for a storage group via the EMS, you'll need to do so using the Suspend-Storage, GroupCopy CMDlet. To suspend LCR for the First Storage Group, where the comment shown in Figure 8.17 is specified, you should run the following command:
Suspend-StorageGroupCopy -Identity "First Storage Group" -SuspendComment "Suspending LCR as an integrity check on the passive copy's transaction logs and database file is required."
Again, you need to confirm that you really want to suspend LCR for the storage group. To do so, type Y for Yes and press Enter.
To resume LCR for a storage group via the EMS, type Resume-StorageGroupCopy -Identity "First Storage Group."
Managing Local Continuous Replication in Exchange 2007
Part 1: Exchange 2007 Local Continuous Replication overview
Part 2: Enabling Local Continuous Replication on a storage group
Part 3: Viewing the status for a Local Continuous Replication copy
Part 4: Switching to the LCR copy for database disaster recovery
Part 5: Suspending and resuming LCR for an Exchange 2007 storage group
Part 6: Manually adding an Exchange 2007 database to a storage group copy
Part 7: Use Exchange Eseutil for a passive storage group copy integrity check
Part 8: Disabling LCR on an Exchange 2007 storage group
Part 9: Adding Local Continuous Replication performance objects and counters
Part 10: Exchange 2007 LCR administration summarized
|This chapter excerpt from How to Cheat at Configuring Exchange Server 2007: Including Outlook Web, Mobile, and Voice Access, by Henrik Walther, is printed with permission from Syngress, a division of Elsevier, Copyright 2007.
Click here for the chapter download.