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The size of LCR is getting bigger and bigger

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The size of LCR is getting bigger and bigger - 20.Apr.2008 2:46:14 AM

wshamroukh

Posts: 10
Joined: 20.Apr.2008
Status: offline

Dear All

I have MS Exchange 2007.. The LCR logs and database is located beside the Storage groups logs in a drive with size 40GB... the size of the LCR is getting bigger and bigger every day and I dont know what to do.. it is now only 900MB left in that drive!!! and I don't know what to do in this issue.. can anybody give me advice??!!

thanx in advance

Post #: 1

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RE: The size of LCR is getting bigger and bigger - 20.Apr.2008 2:51:01 PM

charliegadget

Posts: 52
Joined: 16.Nov.2007
Status: offline

hi

not quite following you, but if the logs are getting more and more, you need to run a backup program.. ntbackup for example. This will clear all the seeded logs from the drive.

Charlie

(in reply to wshamroukh)

Post #: 2

RE: The size of LCR is getting bigger and bigger - 21.Apr.2008 1:29:36 AM

wshamroukh

Posts: 10
Joined: 20.Apr.2008
Status: offline

but if i do ntbackup that would not delete the logs!!!! can u clarify plz?

thanx in advance

(in reply to charliegadget)

Post #: 3

RE: The size of LCR is getting bigger and bigger - 22.Apr.2008 10:14:34 PM

charliegadget

Posts: 52
Joined: 16.Nov.2007
Status: offline

yes, it does delete the logs that have already seeded to the mailbox db

Thanks

Charlie

(in reply to wshamroukh)

Post #: 4

RE: The size of LCR is getting bigger and bigger - 26.Jun.2008 8:35:24 AM

wshamroukh

Posts: 10
Joined: 20.Apr.2008
Status: offline

i have just done a normal backup using ntbackup to LCR logs and to the database, but still the log size is the same!!! why?? and when the logs will be deleted?

(in reply to charliegadget)

Post #: 5

RE: The size of LCR is getting bigger and bigger - 2.Jul.2008 2:30:09 PM

jassyca

Posts: 227
Joined: 20.Jul.2006
Status: offline

Are you using ntbackup to backup the folders / directories or are you using ntbackup to backup the Exchange Information Store? If you use it to backup the directories where you have your Exchange databases, that's not a proper backup and the logs won't be removed. Start ntbackup, tell it you don't want it to start in "Wizard mode" (if it asks) and tell it "let me choose what I want to backup" (I think that's what it says). If you see the screen in ntbackup that allows you to see the tabs across the top and one says "Backup", to the left, you should see something like:
- [ ] Desktop
- [ ] My computer
- [ ] 3 1/2 Floppy (A:)
- [ ] Local Disk (C:)

.. and so on. Near the bottom of that list, you'll see:

+ [ ] My Documents
+ [ ] Microsoft Exchange Server
+ [ ] My Network Places

See that "Microsoft Exchange Server" stuff with the gray box? Expand it and drill down until you see your Exchange databases (ie, the "Info Store") that you need backed up. That's where you want to go to backup your Exchange server the proper way. When you go in there with ntbackup in this manner and backup your Exchange databases, then Exchange will know that the databases were backed up and that it can safely delete the old log files. When you just backup directories, Exchange doesn't know that a backup happened so it won't remove those log files.

Did that make sense? Let us know if you still need help!

(in reply to wshamroukh)

Post #: 6

RE: The size of LCR is getting bigger and bigger - 5.Jul.2008 12:14:00 PM

Exchange_Geek

Posts: 1026
Joined: 31.Dec.2006
Status: offline

I understand and can answer your question exactly. I'm sure not many people know this and thats why its my pleasure to state that Exchange 2007 by itself generates logs for even an idle state of LCR / CCR.

The following table lists the maximum number of transaction log files that will be generated each day by an idle storage group as a result of log roll activity as stated in the doc below

http://technet.microsoft.com/en-us/library/cc535020(EXCHG.80).aspx

Maximum number of logs generated each day due to log roll activity
Mailbox server configuration Maximum number of transaction logs generated per day by an idle storage group Stand-alone (with or without LCR)
Single copy cluster
96
Cluster continuous replication
960

Hope this answers your question - incase, it dsnt do tell me.

(in reply to jassyca)

Post #: 7