HP Xw8200 Adaptec SCSI RAID 2120S: Software User's Guide - Page 9
RAID-0, A RAID-1 must contain only two disk drives. All data stored on
UPC - 882780210455
View all HP Xw8200 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 9 highlights
Introduction Adaptec RAID controllers support the following types of array: RAID-0 A RAID-0 is created by striping data across two or more disk drives. Simple striping like this creates no redundancy to protect the data, but by sharing the load equally across multiple drives, it does provide the best read and write performance of any RAID type. RAID-0 Drive Data 0 Data 3 Data 6 Data 9 Drive Data 1 Data 4 Data 7 Data 10 Drive Data 2 Data 5 Data 8 Data 11 RAID-1 A RAID-1 must contain only two disk drives. All data stored on the array is written to both drives. This duplication, or mirroring, of the data provides redundancy, ensuring that if one drive fails no data loss will occur. RAID-1 Drive Data 0 Data 1 Data 2 Data 3 Drive Data 0 Data 1 Data 2 Data 3 1-3