User manual

Set up devices

iXOS-JUKEMAN 2.2 User Manual Pre.12/97 49

SCSI devices and device names

In UNIX and NT, each device is represented by a device name, which is a

path in the root file system tree.

NT hides the devices, but iXOS-JUKEMAN makes the names visible. The

SCSI ID x on bus y of controller z is represented by the path \\.\pzbytx.

So if you have a PCI bus and put Adaptec twin adapters AHA 3940 into

bus slots 0 to 2, you will have 6 SCSI buses, and ID 4 on bus 1 of adapter

2 is represented as \\.\p2b1t4. Each enumeration begins with 0.

Within an ID, LUNs are represented by appending a comma and the LUN.

So \\.\p2b1t4,1 is LUN 1 of SCSI ID 4. \\.\p2b10t4 and

\\.\p2b1t4,0 are the same.

In UNIX, all devices are located in a subdirectory of /dev. iXOS-

JUKEMAN creates directories such as /dev/iXOS_SCSI0,

/dev/iXOS_SCSI1, and so on. Each directory represents a SCSI bus.

Devices are represented by numbers. So if your bus is represented by

/dev/iXOS_SCSI1, the device using SCSI ID 4 is represented as

/dev/iXOS_SCSI1/4. If you use LUNs, add a comma and the LUN

number. /dev/iXOS_SCSI1/4,1 is LUN 1 of the device using SCSI ID 4

on bus /dev/iXOS_SCSI1.

SCSI device representation for iXOS-JUKEMAN

NT UNIX

\\.\pbt<T>,<L> /dev/iXOS_SCSI/<T>,<L>

(=adapter, =bus, <T>=SCSI ID, <L>=LUN)

Windows NT: What is the path of MY Jukebox?

If you know which paths represent your devices, you can use the in-

quiry command (in the JUKEMAN directory) to verify the paths. For ex-

ample, if you have a HP Sure Store Recorder 4020i that is connected to

the only SCSI bus on an NT system using SCSI ID 5, the command

inquiry \\.\p0b0t5

will return something like

0000002 \\.\p0b0t5 is HP's CD-drive "C4324/C4325"

0000004 ProRevL 1.25, Firmware 04/15/96

SCSI devices

in NT

SCSI devices

in UNIX