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Missing Hard Disk Space

Tags:
  • Windows
  • NAS / RAID
  • Storage
  • Hard Drives
Last response: in Storage
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October 10, 2014 3:06:38 PM

So this has been an annoying spiral of annoying...ness? Well, here's what been happening:

I bought an HGST 4TB 7200RPM HDD to use as a C Drive in conjunction with a 60GB SSD vis-a-vis Intel SRT. I install windows, find out I messed up because the drive wasn't GPT, so I had to go back and redo it. Then I found out I hadn't put it on RAID, so I had to go back and reinstall it. Then I found out that I had accidentally forgotten to set it on RAID, again, and my HDD was not on GPT again.

I go back to the Windows installation that last time and delete all the partitions except the last one that I can't, a 1.7 TB partition.Now that partition is the ONLY one showing. My BIOS can detect the full 3.8TB. If I use safe mode on another harddrive I can see the 3.8TB as :unallocated space. But for the life of me I can't get it back to the point that windows reads it at 3.8. The installation only reads 1.7, I tiried installing on that partition and disk manager only reads 1.7. Diskpart only reads 1.7.

Anybody have any idea what is going on?

More about : missing hard disk space

October 10, 2014 3:17:52 PM

Doesn't work. On my disk manager it only shows the 1.7TB. I tried using an HDD from an old computer on safe mode, and I could see the whole thing. It showed the whole 3.8 as unallocated, and I tried making it into a simple volume, and reformatting it. Didn't change a blasted thing.

So formatting like that wouldn't work. I also tried diskpart and cleaning it, but that didn't change anything either.
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October 10, 2014 3:40:24 PM

Okay, update... This is really weird. So I can see the whole volume if I switch my BIOS sata controller to AHCI, so it works that way. But if I use RAID it only shows 1.7. Any ideas on how to fix this?

I really want this to run in RAID if at all possible so I can use Intel's SRT along with it.
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a c 327 G Storage
October 12, 2014 1:00:49 PM

RAID mode may be affected by a 32-bit LBA limit, either in RAID BIOS or in the RAID driver.
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