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Talds_AloudsFlag for Afghanistan

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Missing HDD space

Hi guys,

Just built a system with 5 x 1TB drives in RAID5 (Gigabyte GA-X79-UD5).

The array sees the right amount of space. And even windows see's the correct amount but it says it's already allocated. I have the latest BIOS installed and I'm running server 2012.

Just had a quick read up and can see the storage limitations. I can see that if I create a dynamic disk, then I can do it? I don't know how to do it? And does this mean that I don't create an array in the intel RAID BIOS?

Any help appreciated - thanks.
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David
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The largest bootable RAID array with what you have is a 3-disk RAID5.  So do that, build another 2-disk RAID1.   Use the RAID1 for the O/S and write intensive apps & files.

RAID5 write performance will suck on your hardware because that controller has no caching. If you want decent performance, you'll need to buy a real controller with battery backup cache.
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Thank you. I'm not too concerned about write speeds as it's not going to be used as an actual server but rather just a workstation with a fair bit of storage/RAM.

If I get a dedicated RAID controller, will I be able to have a 5 disk array (like I currently have)? If so, what's a decent cheap RAID controller that would do this? Remembering that I'm trying to do this on the cheap.

Thanks mate.
Sorry, but decent and cheap are mutually exclusive for RAID controllers .. assuming you are buying new.  No matter what you need a controller with battery backed up cache and dedicated CPU from one of the major players that is writing device drivers and maintaining them for your O/S.

As such, my suggestion is to go with a family of products such as LSI MegaRAID, 3Ware, or late-model Adaptec and try to pick something up used on ebay.
So by doing this, I'll be able to run a 5 disk RAID5 and have a volume bigger than 2TB?
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David
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Awesome thanks. Just realised you said bootable.
I'll probably just use a std. HDD for OS and 5x RAID5.
Ps. isn't RAID1 bad for SSDs?
Nothing wrong with W2K12 software R1 for SSDs.  The O/S does TRIM, so it works quite well.