BIOS DVPro T10B3, Руководство пользователя, Страница: 61 / 65

DVT10B3
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Appexdix A - MBR of different Operating Systems
Since first LBA of LUN partition is not always aligned with data buffer size, an unaligned LUN might impact the
performance of data access. Especially this happens on earlier Windows Operating Systems. In LUN MODE
setup parameter; there are different offset option to adjust the alignment at LUN creation. Please refer to
below table for different combinations.
OS
MBR GPT
Note
First LBA Alignment First LBA Alignment
Win7x64 206848 ○ 264192 ○
Win7x86 206848 ○ 264192 ○
WS2008R2 206848 ○ 264192 ○
VistaSP1x86 2048 ○ 264192 ○
VistaSP1x64 2048 ○ 264192 ○
WS2008x86 2048 ○ 264192 ○
WS2008x64 2048 ○ 264192 ○
WS2003R2x86 63 × 262178 ×
MBR: MBR(+1)
GPT: MBR(-2)
WS2003R2x64 63 × 262178 ×
MBR: MBR(+1)
GPT: MBR(-2)
WinXPx86 63 × N/A × MBR: MBR(+1)
WinXPx64 63 × 262178 ×
MBR: MBR(+1)
GPT: MBR(-2)
○: Aligned
X : Need Alignment