Guys, I just upgraded to 4x1.5TB drives and my first issue is, I'm only getting 4.1TB and I thought I'd get 4.5tb or so but in any case, I want to set up ONE share only, AND for the full size, but it only allows me to set 2097151MB or roughly 2TB.
What am I doing wrong?
I've got the latest firmware and I just did a factory restore and did Xraid on the unit.
This is linux for chrissake, there should be no 2tb limitations?
What I was doing was ENTERING a size, ie, the size I wanted but for some reason, NOT entering share size does the trick...oh well, makes little sense to me but if that's what it takes, that's fine with me.
Would you explain the pros and cons of 10 vs 5 and 6 please (SIMPLE terms please) and how many drives you need for how much storage, etc. Let's say you're using 1TB drives to keep the math simple for me.
You can't do raid 10 with a readynas can you? I know I can do with a raid card in the puter but not sure about the readynas..
RAID 10 is a stripped set of mirrored drives. But at a loss of 50% total capacity. Required 4 drives. So four 1TB drives = 2TB of raw storage.
RAID 5 is a configuration that will strip the data across 3 or more drives. The total loss is minimized as the number of drives increase. However the risk of more then a single drive failure increases.
RAID 6 is very similar to RAID 5, but can allow for 2 drives to fail. Usually better with larger number of drives.
The NV+ does not do RAID 10 or 6. Only 0,1,5 or XRAID.
I thought I'd get a 3ware raid card in the new puter (IF I get a new one) and put a raid 6 in there and prolly go down to 1tb's instead of the 1.5's (WD's). I've already lost one drive and a few other ones are failing tests.
I guess there's too much density and frankly, since I'm going with a big case, I should have the space. Actually, I'm thinking about getting a rack and cramming all my **** in there including the UPS's and my stereo and cable box and stuff.
Who here knows about servers and racks and stuff. I want to know a few things about how the racks work as in putting equipment in them.
be aware that raid 6, while nice, comes with a pretty hefty cpu price. unless you get a pretty high end perc/raid card, the parity calculations will be done by your cpu which will slow your system down overall. then you can forget about it during a raid reconstruct once a drive fails. You are at its mercy until the reconstruct completes assuming you can get a spare drive in there and nothing else goes wrong. as sad as it seems, raid 1+0 is still probably the best poor mans solution. Create a raid 0 stripe, then mirror it.