Virtual TapeServer 8.3 Quick Start Guide

Virtual TapeServer Quick Start Guide | 17
Then, download the latest version of the Device Mapper Multipath Enablement Kit for HP StorageWorks
Disk Arrays Release Notes document:
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?lang=en&cc=us&
prodClassId=-1&contentType=SupportManual&prodTypeId=18964&prodSeriesId=3559651
Note Review the “Device Mapper Multipath support matrix” section of Device Mapper release notes
to ensure that the firmware version of your storage device supports multi-pathing. If
necessary, upgrade your storage device firmware.
Then, install and configure the device mapper tools as described in the following sections of the
Device Mapper release notes:
l “Installing Device Mapper Multipath tools”
l “Configuring Device Mapper Multipath to enable HP arrays”
l “Setting up Device Mapper Multipath daemon”
Finally, you must disable failover in the QLogic driver that is installed in the VTS server. To do so,
complete these steps:
1. At the command prompt, log in as bill.
2. Become root:
su -
3. Add the following line to the /etc/modprobe.conf file:
options qla2xxx ql2xfailover=0
4. Remake the initial ramdisk (initrd) and reboot the system. This command also loads the
options parameter into the kernel and forces the system to load everything at run time:
/usr/local/tape/bin/mkinitrd.pl -f
Now, you can run the multipath -v2 -ll command to review the list of known multi-pathed disks.
Access the web interface
The VTS web interface enables you to configure and manage VTS.
To access the web interface
1. On a computer that is connected to the same network as VTS, launch a web browser.
2. Enter the hostname or IP address of VTS in the address field.
Your browser may display a warning page and certificate errors. VTS ships with a self-signed
certificate that is used to establish a secure communication channel between your browser
and the VTS web application server.