Error Code details
Severity: Warning 
Component: Volume Manager 
The Read Capacity 16 command failed. Hence the disk size will be truncated to 2TB size only

Veritas Volume Manager (VxVM) uses a pass-through interface to send the Read Capacity 10 SCSI command to retrieve the device capacity. If the number of logical blocks on the device exceeds 2 TB , which is the maximum value supported by Read Capacity 10,  VxVM issues a Read Capacity 16 command to retrieve the device capacity. If the SCSI Read Capacity 16 command fails, device size is truncated to 2 TB. The command failure can be caused by the non-support of SCSI standards, or problems with the disk array and disk controller.


Veritas solutions
Solution 1 Vote: [Useful] [Not useful]
Last Modified: 2012-09-25 07:51:36 PST
Platform: HP-UX 11i v1 (IA-64/PA-RISC), HP-UX 11i v2 (IA-64/PA-RISC), HP-UX 11i v3 (IA-64/PA-RISC)
Release: Generic

To solve the issue, perform the following:


  • Check the device specifications to make sure that the device supports SCSI standards.


  • Contact your system admin to solve the disk array and disk controller problems.


Note: This solution applies to releases 5.0.1, 5.1SP1, 6.0 and 6.0.1.


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