User's Guide

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T-010, Rev. B November 13, 2001
2. Select “Add a tape Drive”
3. Select the type of tape drive you will be adding. Use the “Other SCSI
Tape Drive” option.
4. Select the Parent SCSI Adapter from the available list
5. The Add a tape Drive “Entry Fields” now appear. Some of the standard
options need can be changed to maximize drive performance and
functionality:
1. Set the Connection Address with the Drives Target and Lun (
always use Lun 0 ). In the list, the Target is the first number
and the Lun is the second. For example, if the drive is ID 5,
choose 5,0
2. Set the “BLOCK size” to 0
3. Set “Use DEVICE BUFFERS during writes” to yes.
4. Set “RETURN error on ape change or reset” to no
5. Set “Use EXTENDED file marks” to yes.
6. Set “RESERVE/RELEASE support” to yes
7. Set “BLOCK SIZE for variable length support(Num.)” to 0
8. Set “Density 1” to 0
Leave the “Set delay. . .” and “Set timeout. . .” lines at the default value.
Click on OK and the drive will be installed in the system database, and
devices created. There is no need to reboot the system.
Now exit SMIT
Notes: We suggest using the AIX commands ‘backup’ and ‘restore’ when
transferring data to and from the Viper 200. These commands
transfer data more quickly than other commands such as tar and
cpio. For cpio we suggest a blocking factor of 128. For tar we
suggest using the –N option and a factor of 128. Some older
systems with poor video controllers may experience a reduction in
performance when using the –v option which prints the path names