Fujitsu ETERNUS DX Disk Configuratiehandleiding - Pagina 18

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Chapter 8

LUN Recognition

8.1

The following procedure is used to get the server to recognize the ETERNUS DX LUNs.

When the driver installation process is complete, shut down the OS and turn the server power off.

Use the SAS cables to connect the server to the ETERNUS DX.

After connecting to the ETERNUS DX, start the OS.

Check that the Linux server recognizes the ETERNUS DX LUNs.

At boot up, Linux automatically recognizes all SCSI disks and assigns them successive device names

starting from "sda". When assigning the device names, any internal SCSI disks are assigned first, fol-

lowed by the assignment of the ETERNUS DX storage systems' LUNs. For example, if there is one inter-

nal SCSI disk and three ETERNUS DX LUNs, SCSI device names are assigned as follows:

SCSI device name

/dev/sda

/dev/sdb

/dev/sdc

/dev/sdd

by-id name (Example)

/dev/disk/by-id/scsi-36003005700026cc011251e4b0b80ac59

/dev/disk/by-id/scsi-3600000e00d0000000001000000000000

/dev/disk/by-id/scsi-3600000e00d0000000001000000010000

/dev/disk/by-id/scsi-3600000e00d0000000001000000020000

FUJITSU Storage ETERNUS DX Configuration Guide -Server Connection- (SAS) for Linux

Explanation

Internal SCSI disk

ETERNUS DX storage sys-

tems' LUN

P3AM-3472-14ENZ0