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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
Method 1
Open a terminal console and issue:
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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
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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
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Method 2
Open a terminal console and issue:
# cat /proc/scsi/sg/device_hdr; cat /proc/scsi/sg/devices |
Output 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
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The fifth column ("type") value has the following correspondence:
| Value | Device |
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| 0 | Disk |
| 1 | Tape |
| 5 | CD-ROM |
| 8 | Tape changer |
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Method 3
On a freshly booted system, 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
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This table lists all the devices, not only the real SCSI ones (SATA/IDE for example). CHARON supports only real SCSI devices.
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