First, this is the first RAID array I've ever set up, I chose RAID 5 to get the most out of the 4, 1TB, WD RE3's that I am using. Also I am using the Intel RAID utility that is built in to my MOBO, an ASUS P6X58D Premium. This is a new build so I am not married to the current set up and can change it based on recommendations from folks in this forum.
Here's what's going on; I finished my build and after making sure the basics were stable I added a RAID array (Corsair 800D using all 4 'hot swap' bays). After adding the HDD's I booted the machine and used the Intel RAID utility to set up a 4 HDD RAID 5. This worked well for about 24 hours. I had time to put about 93Gig of info on the RAID array.
Yesterday when I booted the machine the POST screen only saw 3 of the 4 drives, OK, I pulled the offending drive, tested it, it had failed so I put in the spare that I bought for just such an occasion. As soon as I booted the RAID utility asked me to identify the replacement drive as a member of the Array and off it went 'rebuilding'. That was 24 hours ago and it's still at it.
Is this unusual?
Like I said, I'm new at this and I thought it would only take a few hours to rebuild. While it is rebuilding I am doing nothing with machine just letting it chew on the rebuild process.
Here are my primary questions:
Repeating above: Is this an unusual amount of time for only 93 GIG of data?
What would happen if I have to reboot? (power failure) Does it start over?
If I have to abandon this set up and start over are the drives toast? (kind of a part two of above)
And finally how can you tell the progress of the rebuild? Or, is it even possible to find out?
FYI: to keep things simple I used the 4 SATA 3Gbs ports on the MOBO (0,1,2,3) and set up the bays from top to bottom (0 on top, 3 on the bottom)
I appreciate any help or wisdom you all can provide.
For those of you who are checking this thread for information here is what I discovered, keeping in mind that I'm using the 'Intel Matrix Storage Utility' that was included in the BIOS of my P6X58D Premium MOBO and I did not set this up as a bootable RAID.
1. Intel has a small utility called "Intel Rapid Storage Technology". It can be downloaded for free from here;
(current version 10.1.0.1008, file name = iata_cd.exe)
2. This utility will tell you just what is going on with your RAID/s.
3. After I loaded it it told me where I was in the rebuilding process (% complete) and the array that was being rebuilt. (It continues to monitor the health of my RAIDs.)
4. It took 41 hours to rebuild.
5. Rebooting the machine made no difference, the rebuild process picked up where it left off and nothing happened to the drives.
6. For some reason I was not getting the full advantage of the RAID 5. I chose this because with a RAID 5 using 4 1Tb drives I should get about 2.8Tb of storage but the system would only recognize 1.9Tb and put the rest into 'unalocated space'. I can only assume this is a Win 7 limitation as the Intel Matrix software had no problem with the size.
In any event I ended up deleting the single RAID 5 and setting up 2 RAID 1 (mirror) arrays which gave me more flexibility and about the same storage space and it is a bit faster.
I hope this info is helpful to anyone with the same questions.
Some info about my machine:
ASUS P6X58D Premium MOBO
12 Gig corsair RAM
Radeon HD5870 x 2 in CrossFire
Win 7 Home Premium 64
Finally, thanks to FireWire2 for the info but I'm going to stick with what I have.