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Re: [Networker] How to avoid library reconfiguration
2007-01-23 11:54:59
Robert Vuerstaek wrote:
I have a Netbackup 7.3.2 server
I assume you mean NetWorker... ;-)
and 3 storage nodes, all on Win 2003
servers. My library with 4 LTO3 fibre Tape-drives is SAN connected to
the 4 servers via Qlogic boards (QLA2462). DDS for the 4 tapedrives is
enabled and on the Qlogic boards Persistent Binding is activated (with
SanSurfer utility).
The logical tapepaths are \\.\Tape0, \\.\Tape1, \\.\Tape2 and \\.\Tape3.
When I loose, for whatever what reason, the connection to a tapedrive
and the server is rebooted, the tapedrives are scanned again and I will
have the following logical paths: \\.\Tape0, \\.\Tape1and \\.\Tape2.
Because the logical tapepaths have been changed, I need to reconfigure
the library with jbconfig.
Does anybody have a solution for this problem in order to avoid
reconfiguring the library?
Persistent binding does not solve this.
You're right - it doesn't. Persistent binding only fixes part of the
mapping - the part which maps WWNN or WWPN to SCSI addresses. The
mapping of device names to SCSI addresses is done dynamically at boot
time in Windows. In Solaris this only happens when you run a
reconfiguration reboot, but in Windows you have no control. It seems
that no-one involved in the design of Windows ever envisaged using a
system large enough to run multiple tape drives.
There is no solution other than to use a different operating system.
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