More information on running Linux in an iSeries partition can be found in the iSeries Information Center at:

http://publib.boulder.ibm.com/iseries/v5r2/ic2924/index.htm

For running Linux in an i5 partition check, the i5 Information Center at:

http://publib.boulder.ibm.com/infocenter/iseries/v1r2s/en_US/info/iphbi/iphbi.pdf

Troubleshooting and monitoring

The /proc pseudo file system

The /proc pseudo file system is maintained by the Linux kernel and provides dynamic information about the system. The directory /proc/scsi contains information about the installed and attached SCSI devices.

The file /proc/scsi/scsi contains a list of all attached SCSI devices, including disk, tapes, processors, and so on. Example A-16shows a sample /proc/scsi/scsi file.

Example: A-16 Sample /proc/scsi/scsi file

knox:~ # cat /proc/scsi/scsi

 

 

Attached devices:

 

 

 

Host: scsi0 Channel: 00 Id: 00 Lun: 00

 

 

Vendor: IBM-ESXS Model: DTN036C1UCDY10F

Rev: S25J

Type:

Direct-Access

ANSI

SCSI revision: 03

Host: scsi0 Channel: 00 Id: 08 Lun: 00

 

 

Vendor: IBM

Model: 32P0032a S320

1 Rev:

1

Type:

Processor

 

ANSI

SCSI revision: 02

Host: scsi2 Channel: 00 Id: 00 Lun: 00

 

 

Vendor: IBM

Model: 1750511

Rev:

.545

Type:

Direct-Access

ANSI

SCSI revision: 03

Host: scsi2 Channel: 00 Id: 00 Lun: 01

 

 

Vendor: IBM

Model: 1750511

Rev:

.545

Type:

Direct-Access

ANSI

SCSI revision: 03

Host: scsi2 Channel: 00 Id: 00 Lun: 02

 

 

Vendor: IBM

Model: 1750511

Rev:

.545

Type:

Direct-Access

ANSI

SCSI revision: 03

Host: scsi3 Channel: 00 Id: 00 Lun: 00

 

 

Vendor: IBM

Model: 1750511

Rev:

.545

Type:

Direct-Access

ANSI

SCSI revision: 03

Host: scsi3 Channel: 00 Id: 00 Lun: 01

 

 

Vendor: IBM

Model: 1750511

Rev:

.545

Type:

Direct-Access

ANSI

SCSI revision: 03

Host: scsi3 Channel: 00 Id: 00 Lun: 02

 

 

Vendor: IBM

Model: 1750511

Rev:

.545

Type:

Direct-Access

ANSI

SCSI revision: 03

 

 

 

 

 

There also is an entry in /proc for each HBA, with driver and firmware levels, error counters, and information about the attached devices. Example A-17shows the condensed content of the entry for a QLogic Fibre Channel HBA.

Example: A-17 Sample /proc/scsi/qla2300/x

knox:~ # cat /proc/scsi/qla2300/2

QLogic PCI to Fibre Channel Host Adapter for ISP23xx: Firmware version: 3.01.18, Driver version 6.05.00b9

Entry address = c1e00060 HBA: QLA2312 , Serial# H28468

Request Queue = 0x21f8000, Response Queue = 0x21e0000

320DS6000 Series: Concepts and Architecture

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IBM DS6000 Series manual Troubleshooting and monitoring, proc pseudo file system, Example A-16 Sample /proc/scsi/scsi file