Device Files And Wwns - Hitachi Universal Storage Platform V Configuration Manual

Device Files and WWNs

The SGI IRIX system creates device files for new devices automatically during
server startup. For LUN 0, the device name may not specify the LU number.
The rdsk devices use a raw interface, while the dsk devices use a block
interface. The port# and nodename indicate the worldwide name (WWN) and
device port numbers (fibre-channel disks have two ports). The vh and vol
devices are only in the rdsk directory and are normally used only for ioctl and
raw access. The format for device file names in SGI IRIX is:
•
FC-AL (and parallel SCSI)
/dev/rdsk/dkscontroller#ddrive#{spartition#|vh|vol}
/dev/rdsk/dkscontroller#ddrive#llun#{spartition#|vh|vol}
/dev/dsk/dkscontroller#ddrive#spartition#
/dev/dsk/dkscontroller#ddrive#llun#spartition#
Example: /dev/rdsk/dks8d0l8s0
•
Fibre-channel fabric
/dev/rdsk/nodename/lunlun#{spartition#|vh|vol}/ccontroller#pport#
/dev/dsk/nodename/lunlun#spartition#/ccontroller#pport#
Example: /dev/rdsk/50000e10ff809999/lun1vol/c8p50000e10ff80
9999
Note: When the Brocade SilkWorm
information is displayed by the nsShow command (see
PortName (column 4) is the WWN and the NodeName is the device port
number.
switch:admin> nsShow
The Local Name Server has 7 entries {
Type Pid
*N 011200; 2,3;10:00:00:60:69:00:ab:ba;10:00:00:60:69:00:ab:ba; 60
FC4s: FCIP
N 021200; 2,3;10:00:00:60:69:00:03:19;30:00:00:60:69:00:03:19; na
FC4s: FCIP
N 021300; 3;10:00:00:60:69:00:02:d6;20:00:00:60:69:00:02:d6; na
NL 0214e2; 3;21:00:00:fa:ce:00:21:1e;20:00:00:fa:ce:00:21:1e; na
FC4s: FCP [STOREX RS2999FCPH3
NL 0214e4; 3;21:00:00:fa:ce:00:21:e1;20:00:00:fa:ce:00:21:e1; na
FC4s: FCP [STOREX RS2999FCPH3
NL 0214e8; 3;21:00:00:fa:ce:04:83:c9;20:00:00:fa:ce:04:83:c9; na
FC4s: FCP [STOREX RS2999FCPH3
NL 0214ef; 3;21:00:00:ad:bc:04:6f:70;20:00:00:ad:bc:04:6f:70; na
FC4s: FCP [STOREX RS2999FCPH3
}
Figure 2-5
2-16
Hitachi Universal Storage Platform V/VM Configuration Guide for SGI
COS PortName
Displaying the WWN (NodeName) on Brocade Fabric Switch
Installing the USP V
®
2800 fabric switch is used, the WWN
NodeName
MT09]
CD09]
NS09]
JB09]
®
Figure 2-5). The
TTL(sec)
®
IRIX Host Attachment