09-11-2013 10:27 AM
I'm googling for days and can't get a straight answer if this will work or not.
to save you the link click, i'll be setting it up using C:\Windows\System32\diskmgmt.msc
the above old article does a good job explaining now it's done with 2tb drives in win7.
i need confirmation it will work with a pair of 3tb or 4tb drives without doing 2 partitions.
I'm booting the OS off a separate 128gb SDD, so i'm only using the 4TB pair for data.
please don't tell me i should buy a NAS Box, or use my Bios for RAID or some tangent.
either you know what I propose to do will work, or not, and if not, is there any other way,
meaning another software raid program, exotic format, or buried deep registry setting, etc.
i'm running a 4-core CPU, 8GB RAM, 990FX Bios, sata6/ahci, so hardware is not an issue.
09-19-2013 08:57 AM - edited 09-19-2013 09:13 AM
since nobody at Seagate could be bothered to answer such a common interest application question, here's my answer;
once you install your 4tb drives on an ahci capable sata bus and your mobo bios recognizes it, boot up win7ult and once it settles down search for diskmgmt.msc and open/run it. you should see the new 4tb disks listed. right click and delete any existing partitions on those 4tb drives (which is common if you pulled it out of a usb enclosure). once all partitions are gone from your 4tb drives, right click on the gray box to the left of the partition area and you will see "Convert to GPT Disk" so do that now for each of the two disks listed. once it's done, right click on the same spot again and click on "New Mirrored Volume" which will start a script that will ask you what two drives you want to mirror together. once that's done you will need to format them in NTFS using default blocks (usually 4K which is best for any HDD and Mobo/Bios build since 2009). notice at some point it will ask/assign a drive letter to your new NTFS formatted mirror partition - I used M: as not to interfere with all my other internal, usb, wireless stuff. you should have nearly 3.63tb of useable storage - for some reason this method creates an unused 256mb partition - why i don't know, but it's so relatively small that i left it alone.
i hope this helps somebody searching for answer here - since you are unlikely to get them from seagate employees.
this same solution should work for 3tb drives as well. for 2tb and less, you may not need to do the "Convert to GPT" step.
it's a good idea to check in on the health of these drives by running a s.m.a.r.t. monitor utility like "CrystalDiskInfo". it may be useful to find out if any drive is running hotter than normal or generating above normal threshold errors. if your drives are running above 50°C it is advisable to add a fresh air blowing case fan nearby, which is worthwhile to prolong the lifetime of your drives, and keep their additional heat load inside your PC case from harming other components.