| Anchor |
|---|
| TopDSSIPageTOCTopDSSIPage |
|---|
| TOC |
|---|
|
| Include Page |
|---|
| KBCOMMON:KB-CSSstyle |
|---|
| KBCOMMON:KB-CSSstyle |
|---|
|
Table of Contents
General description
This section describes how to find proper "/dev/sg" device for CHARON mapping
...
Procedures of finding the target "/dev/sg" device
...
First method
...
Method 1
Open a terminal console and issue:
If the "lsscsi" command is not installed on your system, use "yum install lsscsi" to make it available. If you cannot install "lsscsi", use method 2 or method 3 described below.
Output example1:
[0:0:0:0] disk VMware Virtual disk 1.0 /dev/sda /dev/sg0
[0:0:10:0] tape COMPAQ SDLT320 5F5F /dev/st0 /dev/sg9
[0:0:11:0] tape COMPAQ SDLT320 5F5F /dev/st1 /dev/sg10
[0:0:12:0] mediumx COMPAQ MSL5000 Series 0520 /dev/sch0 /dev/sg11
|
Output example2:
[0:0:0:0] disk VMware, VMware Virtual S 1.0 /dev/sda /dev/sg0
[4:0:0:0] cd/dvd NECVMWar VMware SATA CD01 1.00 /dev/sr0 /dev/sg1
|
| Include Page |
|---|
| KBCOMMON:DOC-GoToToc |
|---|
| KBCOMMON:DOC-GoToToc |
|---|
|
Method 2
Open a terminal console and issue:
# cat /proc/scsi/sg/device_hdr; cat /proc/scsi/sg/devices |
The output will look something likeOutput example:
host chan id lun type opens qdepth bus online
4 0 0 0 5 1 1 0 1
5 0 0 0 0 1 1 0 1
|
The fifth field column ("type") is the device type.value has the following correspondence:
| Value | Device |
|---|
| 0 | Disk |
| 1 | Tape |
| 5 | CD-ROM |
| 8 | Tape changer |
The "N" in the "/dev/sgN" device is the line number in this table (starting from 0) corresponded to the devices CHARON-AXP will use.Thus corresponding to the output provided by the commands above without taking the header into account so here "/dev/sg0" will be corresponds to the the CD-ROM mapping in this example.
Back to Table of Contents
...
| Include Page |
|---|
| KBCOMMON:DOC-GoToToc |
|---|
| KBCOMMON:DOC-GoToToc |
|---|
|
Method 3
On a freshly booted system please , issue the following command:
The output will look like that:
[ 1.503622] sr 4:0:0:0: Attached scsi generic sg0 type 5
[ 1.780897] sd 5:0:0:0: Attached scsi generic sg1 type 0
|
This table lists all the devices, not only the real SCSI ones (SATA/IDE for example). CHARON supports only real SCSI devices.
...
| Include Page |
|---|
| KBCOMMON:DOC-GoToToc |
|---|
| KBCOMMON:DOC-GoToToc |
|---|
|