RAIDGuard X User’s Manual
52
RAID 1
RAID 1 is commonly referred to as Disk Mirroring, Disk Shadowing or Disk Duplexing
as all data is duplicated across both disks. RAID 1 can only be performed with two hard
drives (with four drives, RAID 0+1 is configured automatically). As data is identical on
both disks, storage capacity is that of the smaller disk. RAID 1 has poor performance
for write operations but very high performance for read intensive operations.
RAID 1:
Mirroring
Characteristics: Recommended
use:
Better Read transaction rate then single disks,
same Write transaction rate as single disks.
100% redundancy of data means no rebuild of
data is necessary in case of disk failure, just a
copy to the replacement disk.
All the disks have the same data.
RAID level 1 requires two drives.
Storage capacity = Capacity of smaller disk
Accounting
Payroll
Financial
Any application requiring
high availability
Arrangement of data blocks saved on a Level 1 array
Summary of Contents for S8A2
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Page 3: ...PCIe to Serial ATA II Disk Array System easyRAID S8A2 Software Manual ...
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Page 8: ...RAIDGuard X User s Manual 4 Introduction ...
Page 13: ...9 Software Installation ...
Page 18: ...RAIDGuard X User s Manual 14 Basic RAID Configuration ...
Page 34: ...RAIDGuard X User s Manual 30 Advanced RAID Configuration ...
Page 40: ...RAIDGuard X User s Manual 36 Step 3 Check the Confirm box and then the OK ...
Page 49: ...45 Appendices ...