Host Error: Extent Size Exceeds Maximum (FSERR106)

  • 7021620
  • 13-Oct-1999
  • 01-Apr-2018

Environment

Reflection for HP version 12.0 through 14.x

Situation

This technical note contains information to help you troubleshoot the error "Unable to transfer file. Host error: extent size exceeds maximum (FSERR106)." This error may appear when you transfer a file to an HP 3000 host using Reflection for HP.

Resolution

To solve the problem, try the troubleshooting suggestions below in the order presented.

Update PCLINK2 on the Host Computer

Attachmate Technical Support recommends you update PCLINK2 to version 3.53 or higher, which contains better support for large file transfers. For more information on determining your PCLINK2 version and getting the most recent version, see KB 7021587.

The PCLINK2 file is self-documenting and includes installation instructions. After you upload the new version of PCLINK2 to your host computer, try transferring your file again.

Tip: You can verify that a newer version of PCLINK2 is being used for the file transfer by noting the version number shown in the file transfer progress window.

Use a File Equation Command

If you are unable to transfer the file after applying the patch mentioned above, define the file on the host computer using a file equation, and then transfer the file using the Purge option in Reflection.

For example, to define a file named FILE1 that can be at most 100,000 records long with a record length of 968 bytes, you would enter the following command:

:FILE FILE1;REC=-968,1,F,ASCII;DISC=100000

The file name in your command should match the name of the file being transferred from the PC. Adjust the values of DISC and REC to appropriately estimate the number of records in your file and the maximum size (in bytes) of each record.

Once you have defined the file on the host computer, transfer the actual file from the PC using Reflection and the Purge option. To do this, follow these steps:

  1. On the Setup menu in Reflection, select File transfer. When the File Transfer Setup dialog box appears, verify that WRQ/Protocol is selected for Protocol.
  2. Click the General tab. Choose Purge for the If File Exists option. Click OK to exit the dialog box.
  3. Transfer the file to your host computer.

Build the File Before the File Transfer

You can also build the file on the host computer using the BUILD command, and then transfer the file using the Append option in Reflection. There are cases where this method works even if the file equation method fails.

For example, to build an ASCII file named FILE1 that can be at most 100,000 records long with a record length of 968 bytes, you would enter the following command:

:BUILD FILE1; REC=-968,1,F,ASCII;DISC=100000

The file name in your command should match the name of the file being transferred from the PC. Adjust the values of DISC and REC to appropriately estimate the number of records in your file and the maximum size (in bytes) of each record.

Once you have built a file on the host computer, transfer the actual file from the PC using Reflection and the Append option. To do this, follow these steps:

  1. On the Setup menu in Reflection, select File transfer. When the File Transfer Setup dialog box appears, verify that WRQ/Protocol is selected for Protocol.
  2. Click the General tab. Choose Append for the If File Exists option. Click OK to exit the dialog box.
  3. Transfer the file to your host computer.

Contacting Attachmate

If you cannot successfully transfer your file after following the instructions in this technical note, contact Attachmate technical support for further assistance. For information on contacting Attachmate support, see https://support.microfocus.com/contact/.

Cause

Reflection for HP comes with PCLINK2, a host program that enables Reflection to transfer files to and from an HP 3000 using the WRQ file transfer protocol.

When you transfer a file to an HP 3000, PCLINK2 estimates the size of the file in records and sends this number to MPE before starting the file transfer. If the actual number of records exceeds the estimate sent to MPE, the host generates the "Extent size exceeds maximum" error.

Additional Information

Legacy KB ID

This document was originally published as Attachmate Technical Note 1348.

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