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Huawei SAN Storage Host Connectivity Guide for Windows

HUAWEI SAN Storage Host Connectivity Guide for Windows Servers

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Specifications

Specifications

Windows has different specifications for LUNs and file systems. Table 2-3 lists the limitations on the number of LUNs. Table 2-4 lists specifications of NTFS with GPT disks.

Table 2-3 Number of LUNs

OS

OS Kernel Limitation

HBA Limitation

Windows Server 2008

Windows Server 2008 R2

  • 8 buses per adapter
  • 128 target IDs per bus
  • 255 LUNs per target ID

4096 LUNs per target (Emulex)

256 LUNs per target (QLogic)

Windows Server 2012 and later versions

  • 255 buses per adapter
  • 128 target IDs per bus
  • 255 LUNs per target ID

4096 LUNs per target (Emulex)

256 LUNs per target (QLogic)

You can obtain more HBA limitations from its manufacturer.

Table 2-4 Specifications of NTFS with GPT disks

Allocation Unit Size

Max. NTFS Volume Size

512

2,199,023,255,040 (2 TB)

1024

4,398,046,510,080 (4 TB)

2048

8,796,093,020,160 (8 TB)

4096

17,592,186,040,320 (16 TB)

8192

35,184,372,080,640 (32 TB)

16,384

70,368,744,161,280 (64 TB)

32,768

140,737,488,322,560 (128 TB)

65,536

281,474,976,645,120 (256 TB)

Table 2-4 lists only part of NTFS specifications. For more information about specifications of each file system, see the corresponding Microsoft document, for example, NTFS Overview.

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Updated: 2020-01-17

Document ID: EDOC1000150159

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