Time Machine to a Raid 5 Array

I bought a brand new tower a few weeks ago. This is our file server and is in production.
The problem is that the machine was purchased with a raid 5 array however the OS was installed on the main drive our database software is also on this drive.
I would like to know if its possible to use time machine to do a restore of the systems data to the raid array and then set it as the boot drive.
1. Will this work and are there any potential issues with this method.
2. Is there a better way to do this.

Yes, there are issues with having your operating system on a storage array. Were there a drive failure you would lose everything on the array including the ability to boot the system. Keep the OS where it is, and use the array for its intended purpose - storage.
You should also consider another array that you can use as backup for the existing one. Perhaps a mirrored array so your backup has a backup.

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    ChangeAgent wrote:
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    ChangeAgent wrote:
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  • Server Monitor Notifications - Drive Status Changed - Time Machine

    I'm using an Xserve as a file server for a small workgroup . It has a Raid 1 set which is being backed up via Time Machine to an attached disk array.
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    [email protected]  2 root  admin    68  4 Jun 14:44 (null)
    [email protected] 14 root  admin   476  4 Jun 14:44 .
    [email protected] 43 root  admin  1462  4 Jun 14:43 ..
    [email protected]  1 root  admin    37  4 Jun 14:44 .serverBackupSignature
    [email protected]  2 root  admin    68  4 Jun 14:44 addressBookServer
    [email protected]  2 root  admin    68  4 Jun 14:44 calendarServer
    [email protected]  5 root  admin   170  4 Jun 14:44 iChatServer
    [email protected]  6 root  admin   204  4 Jun 14:44 mailServer
    [email protected]  1 root  admin  3826  4 Jun 14:44 master.browse.plist
    [email protected]  4 root  admin   136  4 Jun 14:43 openDirectory
    [email protected] 61 root  admin  2074  4 Jun 14:44 serverSettings
    [email protected] 23 root  admin   782  4 Jun 14:44 sharePoints
    [email protected]  8 root  admin   272  4 Jun 14:44 webServer
    [email protected]  2 root  admin    68  4 Jun 14:44 wikiServer
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    serveradmin$ ls -al
    total 81936
    [email protected]  4 root  admin       136  4 Jun 15:32 .
    [email protected] 14 root  admin       476  4 Jun 15:33 ..
    [email protected]  1 root  admin  41947136  4 Jun 15:32 ServerBackup_OpenDirectoryMaster.sparseimage
    [email protected]  1 root  admin       249  4 Jun 15:32 openDirectory.browse.plist
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    Jun  4 16:00:56 yourservername com.apple.backupd[25117]: Starting standard backup
    Jun  4 16:00:56 yourservername com.apple.backupd[25117]: Backing up to: /Volumes/YourBackupVolume/Backups.backupdb
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    Jun  4 16:09:26 yourservername servermgrd[75]: servermgr_backup: TimeMachinePreBackupHook done.
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    Jun  4 16:10:29 yourservername com.apple.backupd[25117]: Backup completed successfully.
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  • Recurring directory errors in Time Machine backup

    I'll try to make this brief:
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    I'll try to make this brief:
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  • HT3275 Time Machine full - compatibility with external mirrored drive???

    A friend of mine is using a 2TB mirrored drive (so 999GB capacity available for back-up).  He is getting messages saying time machine cannot back up as drive is full.  As Time Machine is meant to delete older back-ups as and when space is needed obviously drive should not become full.
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  • Time Machine Server - external firewire 800 RAID array incompatible??

    Hi all
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    I think what I am going to do is completely and utterly start again... go nuts one weekend and erase everything, every computer, every wireless router, everything, and start fresh. Since there have been so many little glitches here and there I just want them dead.
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    Hi everyone, Just thought I would give you all an update on how things went.
    Lets just say that I got everything working fine... this is what I did.
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    3. Completely reformatted all client computers and reset all client accounts (Once again, probably not an option for most)
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  • RAIDS and Time Machine?

    I want to get a Mac Pro with 4 500 GB HDs. I want to stripe two of the HDs together, and then stripe the other 2 together giving me two RAID 0's of 1 Terabyte each.
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    Would this be a good solution?

    Assuming your RAID setup is as follows:
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    Drive 3 and Drive 4 are Striped into a RAID 0 (Logical Disk 2)
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    "There's still plenty of room for legitimate Time Machine criticism, however. While the hard link trees are a clever solution, given the constraints of HFS+, the strategy dictates a file-level granularity for all backups. In other words, if you change a single byte of a 500MB file, the entire 500MB file will be copied to the backup volume during the next Time Machine backup. Frequent modifications to large files will fill your backup volume very quickly."
    "Worse, there does not appear to be a way to prioritize backup retention. When space runs out on the backup volume, presumably Time Machine will recycle old space. But if it does so based on date rather than (user-specified) "importance", a relatively unimportant change to a large file could necessitate the loss of hundreds of small files from the backup volume. Where once a small text file may have had an entire year's worth of revisions on the backup volume, now only the past month's revisions may exist due to the need to reclaim space for a few recently modified large files."
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    -Berylium
    Mac OS X (10.4.7)

  • Time Machine on Raid 1

    I have had two Time Machine external hard drives crash within the last year, so I've decided to create a Raid 1 mirror to use as my Time Machine. I understand the basic requirement is that the drives be of the same size. I have two 1TB drives, different in size by only .03TB (999.16TB versus 999.13TB). However, the drives are of different manufacturers, and one is Firewire and the other is USB. Will I have an issue creating an efficient Raid 1 array?
    Thanks,
    Nick
    Message was edited by: nickditoro

    nickditoro wrote:
    Thanks for the response about different connection types; that's what I was looking for. That takes me back to your other response and my reply about cloning TM periodically to another external drive. Is it possible with Carbon Copy Cloner or Superduper?
    Nick
    I haven't tried that, you can look over at the CCC forums if cloning a TM drive is possible and if TM will accept it afterwards.
    Supposedly the only thing that can access a TM drive is TimeMachine, not EVEN ROOT USER (which CCC uses obviously), can access TM drive because of MAC (Mandatory Access Controls) built into OS X.
    So Apple really ties everyone's hands with their TM solution and when your hard drive dies, or you can't use your Superdrive to c boot off the installer disk, your totally SOL with TimeMachine.
    With a clone, your up on the clone in the time it takes to boot.
    And, you can clone that to another drive, or a thousand drives, whatever gives you the most peace of mind.
    Heck I got clones of Leopard and even Tiger laying around. All just a option boot away.
    What you can do, is do both, a clone AND a TimeMachine drive, just make sure to label them so as you connect the clone OSX pops up that annoying "You want to make this a TimeMachine drive" window and you might make a mistake and say ok on a clone.
    So like once a week you hook up the clone and run CCC to update it. Keep the TM drive connected all the time.
    Some people do this. I don't see the need unless your prone to deleting stuff or can't do a "Save As..." for file revisions. That's the only thing TM is good for, not worth locking all one's data to being only accessible from TimeMachine if you ask me.
    But using both is a option.
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