Mac mini lion server raid setup
If the Internet install re-create the recovery partiton evrything should be back to normal. Question is, does it work this way?
How to Verify/Repair a RAID Volume
Aug 5, 3: Once the array had rebuilt having been degraded upon adding the second blank disk , the diskutil command line AND the GUI, both reported "Online" for both disks. This was after nearly 40 hours by the way people … yep … 40 hours to rebuild Gb! Flashing folder with question mark of death on it.
No recognised operating system apparently this means! This is where it got even more curious…. It re-installs, which took about 4 hours in total, and then boots up as if it's virgin 'out of the box'.
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So it asks for company name, etc etc. Then it gives me a login prompt.. I try the previously working admin account, hey presto, in we get! Launch Server. All the users are still there , all the groups are still there. The sharepoints have gone, but re-adding them maintains their original mount permissions. Now the dilemma … do I restore from the previous time machine backup … or do I leave it as it is now?
Seriously… on a BT broadband line in the UK the Mac was estimating about 12 hours to re-install the OS, that's assuming the line stays up for that long, which is not a given in some places! Aug 6, Aug 7, After that I followed the steps in the first post and configured Raid 0 striped , installed Lion, both from a TimeMachine backup and from Internet just to verify both ways. I can only tell that it worked like a charm either way.
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That also worked without any problems. I just noticed that you had wrote "Software Raid". My answer does only cover the non software Raid. Communities Contact Support. Sign in. Browse Search. Ask a question. User profile for user: Here's a more concise step-by-step of how to set up the system with RAID: Best of luck to you all.
More Less. All replies Drop Down menu. Loading page content. I've just completed my 5th minute long attempt at reinstalling Lion Server from the web and I got the same error as before: This is a crying shame. Apple, you need to provide backup media. Reply Helpful Thread reply - more options Link to this Post. Still, for the benefit of any readers of this thread, I'm wondering: Has anyone gotten RAID 1 mirrored working?
Thanks and good luck. Eccles6 Eccles6. Community User Community User. After installation as usual make a backup with the time- machine to an external storage Recovery: Insert the Leopard install DVD server and then select restore function. Not tested by me If this will not: Make a lion client Recovery DVD.
To assume that the backup can be put back. I also assume that you have a lion client. Tommiemel Tommiemel. What you need to use is the command line version of Disk Utility, diskutil. Launch the terminal and type the following command: Using this syntax: On my mac mini server this was disk3 disk 2 was the USB I booted from, disk 0 the first disk and disk 1 the second disk Next add the disk HD2 to the Server HD raid mirror volume on my mac, as I said before, this is disk3 as a new member.
Rob Davies1 Rob Davies1. This allows one to place Xcode and other necessities within install key. But, as above, once purchased App Store knows this, and lets one re-download. This way, I didn't need to re-setup the server nor have to worry about the download failing. Before doing anything other than the original power up of the new server and the nonsense that involves, you can do te following to make a machine specific clone with recovery drive.
Get a USB or Firewire drive. On the Mini Server, open terminal and type in the following: Open disk utility and in the debug menu select show all partitions.
The Recovery HD shoul be seen grayed out. Select and mount it. Next select restore option. It should be shown as source, if not drag it there.
Creating highly-redundant, low-cost Mac servers with Lion Server and Mac minis | ZDNet
Next drag the 1 GB partition created on the external drive to destination. Then click restore. Actually, at this point you have an exact duplicate of all the files preset on the Recovery HD. This will be machine specific.
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You can use the Restore to clone the actual Lion install the the remaining partition in the same way. Or, use your favorite cloning software. Then you can do as you wish with the internal drives and still have a bootable Recovery HD and system HD, which is "pristine". Mac OS X Speciality level out of ten: Apple Heart Apple Heart. Any data written to a RAID 1 set is immediately copied to all members of the set; the same is true when you erase a file.
As soon as you erase a file, that file is removed from all members of the RAID 1 set. As a result, RAID 1 does not allow you to recover older versions of data, such as the version of a file you edited last week. Using a RAID 1 mirror as part of your backup strategy ensures maximum uptime and reliability. You can use RAID 1 for your startup drive, a data drive, or your backup drive. The hard drives you use as members of the RAID 1 mirror set must first be erased. When you zero out data, you force the hard drive to check for bad data blocks during the erasure process and to mark any bad blocks as not to be used.
This decreases the likelihood of losing data due to a failing block on the hard drive. It also significantly increases the amount of time it takes to erase the drives from a few minutes to an hour or more per drive. Here's how:. It then creates the actual RAID 1 mirror set and mounts it as a normal hard drive volume on your Mac's desktop. The total capacity of the RAID 1 mirror set you create is equal to the smallest member of the set, minus some overhead for the RAID boot files and data structure. As a result, you can use them as startup volumes, data volumes, or backup volumes.
Drives added after a RAID array is created are known as hot spares. At that point, the RAID array automatically uses a hot spare as a replacement for the failed hard drive and automatically starts a rebuilding process to convert the hot spare to an active member of the array.
When you add a hot spare, the hard drive must be equal to or larger than the smallest member of the RAID 1 mirror set. When this occurs, the rebuilding process begins, assuming you selected the automatic rebuild option during the RAID 1 mirror set creation process. During the rebuilding process, the out-of-sync disk has data restored to it from the remaining members of the set.
Questions tagged [raid]
The rebuilding process takes time. While you can continue to use your Mac normally during the rebuild, you should not sleep or shut down the Mac during the process. Rebuilding can occur for reasons beyond a hard drive failure. Some common events that trigger a rebuild are an OS X crash, a power failure, or improperly turning off your Mac.
Share Pin Email. Tom Nelson has written hundreds of articles, tutorials, and reviews for Other World Computing and About. He is the president of Coyote Moon, Inc. Updated November 24, OS X While these instructions should work for both past and future versions of OS X, some of the steps, nomenclature, or images shown in this article may be different. Disk Utility , which is included with OS X. Two or more hard drives. The process of creating RAID 1 mirrored sets erases all the data on the hard drives.
Using hard drives that are the same make and model is recommended, but this is not a requirement. One or more drive enclosures. Mac Pro users may have internal drive bays available.