Emulex LightPulse LPe1105-M4 HBA Installation Guide download pdf (Page 160)

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EMC Host Connectivity with Emulex FC HBAs and FCoE CNAs for the Linux Environment

Additional Notes

device file names. Not all Linux distributions provide corresponding

sg device file names for the sd device file names. Additionally, since

the alphabetic sg device file names are deprecated, some

distributions, such as SuSE SLES 8 do not provide them at all. For

example, on Red Hat releases there are generally 128 sd device file

names, 16 sg numeric file names, and 16 sg alphabetic file names. On

SuSE SLES 8, there are 256 sd device file names, 64 sg numeric file

names, and no sg alphabetic device file names.

In order for i

nquiry and other Solutions Enabler commands to

complete successfully, the sg alphabetic file names must exist and be

linked to the sg numeric. You can use mknod to create any sg numeric

file names needed and use ln to create the link from the sg numeric to

the SG alphabetic.

Note: The Linux kernel assigns minor SCSI device numbers dynamically by

assigning them only to devices that are actually connected to the host in the

order of their SCSI IDs. This means that connecting an external SCSI device

can change the minor numbers of all the internal SCSI devices with a higher

SCSI ID.

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Emulex LightPulse LPe1105-M4 HBA Installation Guide Page 160