NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Xraid 5 Parity and Stripping how much capacity?
I've been trying to get my head round this one. Take a 4 drive nas for instance with four 500gb drives. With xraid5 the volume availanle is 1500gb. That's where I'm stumped and I know it's because of ...
X-RAID on Sparc (e.g. Duo/NV+ v1) models with four disks is RAID-4
X-RAID2 (single-redundancy) on x86 or ARM with four disks of equal capacity would be RAID-5.
Let's say you have four disks installed. The sectors on the disks would be synced so that:
A = 1/3 B + 1/3 C + 1/3 D
B = 1/3 A + 1/3 C + 1/3 D
C = 1/3 A + 1/3 B + 1/3 D
D = 1/3 A + 1/3 B + 1/3 C
WIth RAID-5 the parity is distributed amongst the disks. With RAID-4 there's a dedicated parity disk.
X-RAID2 (single-redundancy) on x86 or ARM with four disks of equal capacity would be RAID-5.
Let's say you have four disks installed. The sectors on the disks would be synced so that:
A = 1/3 B + 1/3 C + 1/3 D
B = 1/3 A + 1/3 C + 1/3 D
C = 1/3 A + 1/3 B + 1/3 D
D = 1/3 A + 1/3 B + 1/3 C
WIth RAID-5 the parity is distributed amongst the disks. With RAID-4 there's a dedicated parity disk.
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
