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4 Installation Notes
Linux Installation Notes
SCSI generic module required for device support
If you are running Data Protector Express under Linux, you must install the sg (SCSI generic) module for
device suppor
t in Data Protector Express.
To verify that this module is loaded and running, issue the following command at a terminal prompt:
lsmod
sg should be listed in the list of running mo dules. If it is not listed, you must manually load this m o d ule
so that Data Pr
otector Express can c om municate with tape devices. Consult your operating system
documentatio
n for instructions on manually loading the sg module.
Red Hat Enterprise Linux EXT3 hardware issue
If you are running Data Protector Express on Red Hat Enterprise Linux (RHEL) v3 or v4, a known hardware
issue exists when you use the EXT3 journal or file system on certain hardware configurations. Update
your Red Hat Enterprise Linux v3 or v4 installation to the latest kernel and jbd patches listed below to
resolve this issue:
• jbd-1.1-multiarch-1
• kernel-2.6.9-11.EL (RHEL 4)
• kernel-2.4.21-37.EL (RHEL 3)
IDE/ATAPI Support
Data Prote
ctor Express suppor ts the use of IDE/ATAPI tape devices. If your Linux d istribution compiled
the ide-tape.o module into the kernel, update the configuration file and verif y the configuration to
access these devices.
NOTE:
When D ata Protector Express runs, it loads the ide-scsi module. This may cause the ide-cdrom module
to fail to l
oad, which may affect CD operation. To work around this problem, mount the CD as a SCSI
device,eventhoughitisanIDEdevice.
To update the configuration file and verify the configuration (LILO)
1. Add the following line to the end of each boot selection section in the /etc/lilo.conf file:
Installation Guide
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