Pegasus R4: RAID level and Time Machine setup?

We're a small architectural firm looking at getting a Pegasus R4 RAID + Mac Mini Server. Our current data use is 540 GB, which add about 10 GB/year to. We currently use Time Machine for local server backup and Crashplan for offsite backup.
What RAID level do you recommend? And what if we wanted to use Time Machine as well?

What RAID level do you recommend?
The choice of RAID format depends on many factors that likely can't be answered directly - there are too many variables based on your own usage and expectations.
If you're looking to use it for backups then you probably want some kind of protected storage, which likely means either RAID 5 or RAID 10. Of the two, RAID 10 will have better throughput, but RAID 5 will give you more usable capactiy (about 2.7TB vs. ≈ 2TB).
Since your primary goal isn't likely to be speed (you'll be throttled by the network bandwidth), I'd be inclined to go with the RAID 5, but there are other considerations, especially if your data usage is highly dynamic (which causes Time Machine backups to take up more space since it saves more revisions of various files).

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    I would like to help you but you need to clear up some things..
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    Okay. First of all, I spent about 30 minutes searching through all the time machine questions here and found nothing like it so I'm sorry if its a duplicate question, but it does seem rather unique.
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    Ladies and gentlemen, I have the answer.
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  • Time Capsule and time machine with third party router

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    In this case the apple support people reveal a truly poor understanding.
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  • IPhoto, iTunes, and Time Machine

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    Thanks for the response. I understand that I would need a backup of all three drives.  However, I was asking if it is better to have your iPhoto and iTunes libraries on separate drives versus using 1 large drive to hold the data. The other point, iPhoto and iTunes can get fairly large in size over time. So, do you use 1 large external drive or use 2 separate drives.  Obviously, I know that when a drive crashes, you may or may not be able to recover any data off of it. Obviously, I know that you need a backup of the drives in case of drive failure. 
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  • ICloud and time machine not compatible

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    I've had similar problems, with a hard drive connected to an Airport Extreme (essentially same setup as Time Capsule). I eventually found I was creating these problem. If you change any settings relating the disk, i.e. rename the disk, change access permissions etc, Time Machine can no longer connect to the disk. You can get Time Machine to recognise the disk again if you open TM preference and select the Change Disk option. You might have to mount the disk in finder for TM to find it. But once you reselect the disk TM will work again.
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  • Here's a very basic question about 2 TB external drives and Time Machine.

    Here's a very basic question about 2 TB external drives and Time Machine.
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    I tried searching around on the new Apple discussion forum, but I find it much harder to use than the old forum I used to use.

    The problem with terabyte drives is that that a 3 TB is about as big as you can get without going into RAID territory. Ideally, a Time Machine drive should be 3 times as large as all the drives you are backing up. So, if you have 2.75 TB of internal storage, you should have 8 TB of Time Machine space.
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  • No "OPTIONS" box in Time Machine setup window

    just finished setting uo a Time Capsule as a WDS remote, for the time with a PB on its wired ethernet. added an external USB disk to the TC for trial.
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    Apple has never fully committed support of the Time Machine/Airport Extreme combination.  I have a Airport Extreme 6th gen that supposedly supports the Time Machine, (page 13 of the installation manual).  After a year of experience I have concluded that it does not work - period.  If you have any critical data on your system(s) I would recommend that you use a dedicated backup/recovery product like Carbon Copy Cloner.

  • Time Machine Setup Questions

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    1 - iMac TM + media --> 2TB partition
    2 - MB TM --> 300GB partition
    3 - other Mac TM --> 700GB partition
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    1 - iMac TM --> 2TB partition (by itself rather than shared with media)
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    A - MB TM --> 320GB HD (rather than in a 300GB partition)
    B - media backup --> 1TB HD (rather than in co-storage on a 2TB partition)
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  • Time capsule and time machine keep disconnecting

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