Matrix SATATYA NVR0801X System Manual

Matrix SATATYA Devices Manual 319
Total Logical Volume Calculation
If Volume of HDD1= V1 and HDD2= V2,
then Logical Volume= V1+V2
Suppose HDD1= 2TB and HDD2= 1TB, then Logical Volume= 2TB + 1TB= 3TB
RAID 1
Minimum 2 HDDs are required. The data in the 2 blocks is mirrored. Thus, the data stored in disk 2 will be the
replica of the data available in disk 1. Hence, redundant data is available.
Total Logical Volume Calculation
If Volume of HDD1= V1 and HDD2= V2,
then Logical Volume= Lowest of the two disks
Suppose HDD1= 2TB and HDD2= 1TB, then Logical Volume= 1TB
RAID 5
Minimum 3 HDDs are required. It stores data as well as parity in the disks. The data is striped and parity is
randomly distributed in the disks. Parity is written into one disk by XOR-ing the data of other disks and this parity is
stored randomly in different disks.
Now, if any one hard disk gets failed, then from the Parity bit which is the result of XOR-ing the data of the other two
disks, data can be retrieved easily by performing the reverse operation.

Matrix SATATYA NVR0801X Specifications

General

Brand	Matrix
Model	SATATYA NVR0801X
Category	DVR
Language	English