IBM TS2340 User Guide - Page 171
Disable and Enable Primary and Alternate Paths, System-Managed Encryption, Device Driver Configuration
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Solaris Device Driver (IBMtape) Disable and Enable Primary and Alternate Paths Once you enter the parameter dpf_support in the IBMtape.conf file and install the IBMtape device driver, all the available paths for a physical device are enabled. If it is necessary to disable a path and not perform path fail over (for example due to maintenance), run commands to disable and then later enable the primary and alternate paths. Note: See Chapter 10, "IBM Tape Diagnostic Tool (ITDT)," on page 259 or "Solaris System - Tape Utility Program (tapeutil)" on page 397 System-Managed Encryption Device Driver Configuration System-Managed Encryption can be set on global or a specific tape drive in IBMtape.conf in /usr/kernel/drv. There are 2 new configuration parameters added for encryption: sys_encryption_proxy "ON/OFF" Use System Encryption FCP Proxy Manager sys_encryption_write "OFF/ON/CUSTOM" System Encryption for Write Commands at BOP The sys_encryption_proxy parameter enables device driver system-managed encryption for a tape drive by setting the value to ON (default set). The sys_encryption_write parameter controls if the device driver can set the tape drive to encryption enabled for write commands. When set to OFF, the tape drive uses encryption for read operations; write operations do not use encryption. When set to ON, the tape drive uses encryption for both read/write operations. When set to CUSTOM, the device driver does not modify current tape drive setting. The custom setting is intended for applications using system-managed encryption to control write encryption without device driver intervention. The parameter is set to "CUSTOM" by default. Note: If sys_encryption_write is set to ON, an application can not open a tape drive using the append mode. To make a global setting to enable SME in IBMtape.conf: sys_encryption_write=1; # System Encryption for Write Commands at BOP To enable SME for a particular target: name=″IBMtape″ class=″scsi″ target=0 lun=0 block_size=0 buffering=1 immediate=0 trailer=0 sili=0 sys_encryption_write=1; Chapter 6. Solaris Tape and Medium Changer Device Driver 153