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Increasing mail storage on SAN

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  • Increasing mail storage on SAN

    so i have to increase the size of my mailstores... i have 100 gigs, but i also have to migrate 480 users off of groupwise to exchange and there is currently 90 gigs of mail already there.
    the quest tool that im using will move the mail in the groupwise accounts to the corrasponding exchange account, so it is obvious that im going to need more drive space...
    the mail store is located on a SANs array and to increase the LUN size i will have to dismount the mail store and break the LUN, rebind, and then rebuild the array... then restore the data.
    what would be the best way to implement this? i am going to use the GUI to do this, because i dont want to mess up the ESM... the data on the mailstore now is not needed and can be lost. its mostly test messages and such...

    anyone with any experience like this?
    its easier to beg forgiveness than ask permission.
    Give karma where karma is due...

  • #2
    Re: Increasing mail storage on SAN

    ok... im still at it but i need some help... i dont want to screw anything up.

    i ll ask this different.. this is what i want to do:

    i just wanna freeze the mailboxes and get a back up... then i want to destroy my LUNs and recreate them with the additional 400 gigs.. this shouldnt be that hard.

    when i try to do a back up, it fails either as a full or copy type...
    Code:
    Backup Status
    Operation: Backup
    Active backup destination: File
    Media name: "July18_PreSAN.bkf created 7/18/2006 at 11:56 AM"
    
    Volume shadow copy creation: Attempt 1.
    Backup of "KAPPA\Microsoft Information Store\First Storage Group"
    Backup set #1 on media #1
    Backup description: "Set created 7/18/2006 at 11:56 AM"
    Media name: "July18_PreSAN.bkf created 7/18/2006 at 11:56 AM"
    
    Backup Type: Copy
    
    Backup started on 7/18/2006 at 11:57 AM.
    Backup completed on 7/18/2006 at 11:57 AM.
    Directories: 4
    Files: 6
    Bytes: 202,416,760
    Time:  20 seconds
    Backup of "KAPPA\Microsoft Site Replication Service\SRS Storage"
    Backup set #2 on media #1
    Backup description: "Set created 7/18/2006 at 11:56 AM"
    Media name: "July18_PreSAN.bkf created 7/18/2006 at 11:56 AM"
    
    Backup Type: Copy
    
    Backup started on 7/18/2006 at 11:57 AM.
    The 'Microsoft Site Replication Service' returned 'Error returned from an ESE function call (d).
    
    ' from a call to 'HrESEBackupSetup()' additional data '-'The 'Microsoft Site Replication Service' returned 'Functions called in an invalid sequence.
    
    ' from a call to 'HrESEBackupClose()' additional data '-'
    The operation was ended.
    Backup completed on 7/18/2006 at 11:57 AM.
    Directories: 0
    Files: 0
    Bytes: 0
    Time:  1 second
    im missing something simple, but i cant figure it out... what services do i need to start or stop to complete a full backup of exchange? it isnt important if the server is recieveing mail.. just that i can get a backup and increase the drive space..

    thanks for the help...
    its easier to beg forgiveness than ask permission.
    Give karma where karma is due...

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    • #3
      Re: Increasing mail storage on SAN

      I hope you havent break the LUN. Point of SAN storage is to have hilgly available system. At least that's the way I look at it as the thing cost a lot of money.
      So what you have to do is create meta LUN. Process depends on the SAN solution vendor you have so I can not give you exact steps. The idea is the same:
      You have to use Meta LUN. Meta LUN consists of two or more standard LUN.
      - add drives to array (if you have the new one)
      - bind (why the hell they don't call it "create" beats me) additional LUN
      - Create meta lun with old lun attached to host running exchange
      - Attache new lun to the same meta lun.
      - re-boot exchange host. NOTE: In my case free space showed up without re-boot but emc recomands re-boot.
      - use windows disk tools to expand partition - works like a charm
      I just did exactly the same for a client on EMC 300 san solution. It took les than 15 min and without taking exchange off line. But it did take over 30 hour to add new drives to array.

      Good luck.

      Trbonja
      Last edited by trbonja; 22nd July 2006, 04:56.

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