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Knowledge Base

When a VTL Connects to a PTL, Robot Arms of the Quantum Scalar i500 PTL Cannot Be Detected But a Driver Can Be Detected

Publication Date:  2015-07-31  |   Views:  429  |   Downloads:  0  |   Document ID:  EKB1000083402

Contents
Issue Description Handling Process Root Cause Suggestions

Issue Description

Product and version information:

VTL3500 V100R002
VTL6000 V100R003
VTL6900 V100R005

A VTL connects to a driver of the Quantum Scalar i500 PTL. After the cat /proc/scsi/scsi command is executed, the driver of the Quantum Scalar i500 PTL can be detected but robot arms of the PTL cannot be detected.

Attached devices:
Host: scsi104 Channel: 00 Id: 01 Lun: 00
   Vendor: HP       Model: Ultrium 4-SCSI   Rev: H58Z
   Type:   Sequential-Access              ANSI SCSI revision: 05
Vendor: SEAGATE  Model: ST3300657SS      Rev: ES64
   Type:   Direct-Access                  ANSI SCSI revision: 05
Host: scsi0 Channel: 00 Id: 00 Lun: 00
   Vendor: SEAGATE  Model: ST3300657SS      Rev: ES64
   Type:   Direct-Access                  ANSI SCSI revision: 05

Handling Process

1.  In the address box of Internet Explorer, enter the IP address of the PTL. Log in to the PTL. The default user name and password are admin and password.

2.  Associate the PTL with the driver by performing operations according to arrows in the following figure.



3.  After the preceding operations are complete, log in to the VTL Console. Choose Physical Resources > Rescan. In the dialog box that is displayed, select Discover New Devices and click OK.

4.  In the Fibre Channel Devices area, check devices that have been detected. Robot arms and the driver can be detected.

Root Cause

The PTL is newly purchased. No settings are made on the PTL. Therefore, you need to log in to the PTL and associate the PTL with a driver on the PTL interface. By default, robot arms of the PTL are associated with a driver of the PTL. If you do not set a control path, robot arms of the PTL cannot be detected at a certain probability.

If a driver of the PTL connects to the VTL through an optical fiber, the VTL can detect robot arms of the PTL.

Suggestions

If the PTL is newly purchased, you are advised to associate the PTL with a driver.

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