Fujitsu ETERNUS DX60 VFY:DX600XF050IN Folheto
Códigos do produto
VFY:DX600XF050IN
Copyright 2009 FUJITSU LIMITED
7
Data Block Guard
saves additional 8-byte check code to every 512-byte data to
ensure data integrity both on the disk and in the cache
ensure data integrity both on the disk and in the cache
Controller Module
Cache
ECC Protected
A0
A1
A2
CC
CC
CC
Write
Read
Apply Check Code
Verify Check Code
Verify & delete Check Code
DISK
(1)
(3)
(2)
(1)
Written data
A0
A1
A2
A0
A1
A2
CC
CC
CC
User data
A0
A1
A2
CC
CC
CC
A0
A1
A2
User data
CC: Check Code
8-byte check code
applied every 512
bytes
applied every 512
bytes
(2)
(2)
(3)
•
Improve data integrity beyond RAID