Hi everyone, I've been using storage space for around a year with pool and raid functionality and I just realized the numbers don't add up... I have 7x 2TB all parts of a single pool with parity. Now here's the numbers:
Physical space: 14tb
Storage Space size (user set): 12tb
Used Storage Space size (according to windows explorer): ~6tb
Used Storage Space size (according to storage spaces): ~9tb
Individual drive used % (according to storage spaces): ~75% each
Storage spaces tells me to add a drive, low capacity... So I know how normal RAID5 works and it really shouldn't use 50% of the total used space as shown by the numbers above (6tb + 3tb assumed to be parity = 9tb). Also, if I need to add another drive, this means I'm almost full at 6tb/14tb?! This is worst than MIRROR RAID...
Am I reading it wrong?
Physical space: 14tb
Storage Space size (user set): 12tb
Used Storage Space size (according to windows explorer): ~6tb
Used Storage Space size (according to storage spaces): ~9tb
Individual drive used % (according to storage spaces): ~75% each
Storage spaces tells me to add a drive, low capacity... So I know how normal RAID5 works and it really shouldn't use 50% of the total used space as shown by the numbers above (6tb + 3tb assumed to be parity = 9tb). Also, if I need to add another drive, this means I'm almost full at 6tb/14tb?! This is worst than MIRROR RAID...
Am I reading it wrong?
My Computer
System One
-
- OS
- Windows 8 Pro
- Computer type
- PC/Desktop
- CPU
- Intel i7 2600K