Any downside to compressing exchsrvr folder and subfolders

Discussion in 'Windows Small Business Server' started by RM Denton, Jun 27, 2004.

  1. RM Denton

    RM Denton Guest

    My information store is growing and my tape backup is
    trying to grow to 2 tapes. The tapes are 20g or 40g
    compressed. I haven't set anything to compress because I
    am not sure if it will create problems. Compressing would
    solve my tape backup capacity problem.

    Has anyone experienced any problem after setting exchange
    server folders, system folders or any other folders to
    compress?

    Thanks in advance for the help.
     
    RM Denton, Jun 27, 2004
    #1
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  2. You'll be lucky to get better than 1.2:1 compression unless your backup only
    included easily compressible information. I'm not sure about your Exchange
    but the system folders will not compress much, there is no reason not to use
    tape compression just don't expect much out of it.
     
    SuperGumby [SBS MVP], Jun 27, 2004
    #2
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  3. Running Exchange databases on compressed volumes is not supported


    http://support.microsoft.com/default.aspx?scid=kb;EN-US;318116

    To avoid a possible data loss that may be caused by a corrupted database,
    make sure not to put the following items on a compressed drive. Note that
    this list includes any Jet-related files such as DIT files, logs,
    checkpoints, and temporary databases:
    Active Directory (NTDS)
    File Replication service (FRS)
    Windows Internet Name service (WINS)
    DHCP
    Security Configuration Engine (SCE)
    Certificate Server
    Terminal Services Session folder
    Terminal Services Licensing service
    Catalog database
    Help and Support Services
    Directory Synchronization service (MSDSS)
    Remote Storage (RSS)
    Phone Book service
    Single Instance Store (SIS) Groveler
    Windows NT Backup/Restore
    Exchange store
    Microsoft Exchange folder (SRS and DXA)
    Key Management service (KMS)
    Instant Messaging
    Content Indexing
    Note Do not install Windows Server 2003, Standard Edition, on a compressed
    drive unless the drive was compressed with the NTFS file system compression
    utility. Uncompress a DriveSpace or DoubleSpace volume before running Setup
    on it.

    Thank you,
    --------------------------
    Christopher Ames
    Microsoft Online Support Engineer

    =====================================================
    When responding to posts, please "Reply to Group" via your newsreader
    so that others may learn and benefit from your issue.

    For SBS 4.5 issues, post to: microsoft.public.backoffice.smallbiz
    For SBS 2000 issues, post to: microsoft.public.backoffice.smallbiz2000
    For SBS 2003 issues, post to: microsoft.public.windows.server.sbs
    =====================================================
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    </BODY>
     
    Christopher Ames MSFT, Jun 27, 2004
    #3
  4. Yeah.. don't do that.

    On that tape backup, you don't need to backup the leftover patches in
    the Windows directory.... go through that harddrive and clean up badmail
    directories, etc. You can probably clean up a bit and buy some time.
     
    Susan Bradley, CPA aka Ebitz - SBS Rocks [MVP], Jun 27, 2004
    #4
  5. Chris's response made me revisit this. We are talking about two different
    concepts.

    The subject seems to refer to compressing the folders on HDD (not supported
    for your Exchange database) but the content of the post is referring to
    compression during backup. RM, you do realise they are completely unrelated?
     
    SuperGumby [SBS MVP], Jun 27, 2004
    #5
  6. RM Denton

    Justin Wong Guest

    RM,

    The others have answered your compression question. These hints below will
    buy you some extra time.

    You could use ntbackup to backup the client apps directory to file. Burn the
    backup file to DVD or CDS and then exclude the clientapps directory from the
    backup.
    Off the top of my head that would save you about 1 Gig in the backup. The
    Clientapps directory is static as far as I am aware so you will only need to
    back it up if you change the contents. If anyone knows otherwise please
    correct me!

    Also if you have had users clean up their mailbox's recently have a look at
    the eseutil to shrink the actually database size. Exchange only cleans up
    the database itself. It never shrinks the database file size.

    Justin
     
    Justin Wong, Jun 28, 2004
    #6
  7. Sorry for responding to the wrong question. The others are correct you will
    not gain much from enabling compression on you back up. I may already be
    there in hardware anyway. One thing I will ask is when was the last time
    you did a offline Defragment of your exchange database? That may gain you
    the space you need.

    XADM: How to Defragment with the Eseutil Utility (Eseutil.exe)
    http://support.microsoft.com/?id=192185

    Thank you,
    --------------------------
    Christopher Ames
    Microsoft Online Support Engineer

    =====================================================
    When responding to posts, please "Reply to Group" via your newsreader
    so that others may learn and benefit from your issue.

    For SBS 4.5 issues, post to: microsoft.public.backoffice.smallbiz
    For SBS 2000 issues, post to: microsoft.public.backoffice.smallbiz2000
    For SBS 2003 issues, post to: microsoft.public.windows.server.sbs
    =====================================================
    This posting is provided "AS IS" with no warranties, and confers no rights.
    </BODY>
     
    Christopher Ames MSFT, Jun 28, 2004
    #7
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