Bug 10088 - Only LUN 0 is seen on each if my HBA's
Only LUN 0 is seen on each if my HBA's
Status: CLOSED NOTABUG
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
6.1
i386 Linux
medium Severity high
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Assigned To: Michael K. Johnson
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Reported: 2000-03-09 09:46 EST by stan_schembri
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Last Closed: 2000-07-26 13:45:30 EDT
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Description stan_schembri 2000-03-09 09:46:48 EST
I have two qlogic 2100 fibre channel adapters connected to a Mylex Raid
Controller fibre channel expansion unit. When I create arrays LINUX only
ever detects the array assigned LUN 0 on each HBA. Does LINUX support
multiple HBAs?
Comment 1 Adam Thompson 2000-07-26 13:45:30 EDT
Yes, multiple-LUN support exists.
Option 1) recompile kernel with multiple LUN support
Option 2) add a parameter to the boot commandline (through LILO)
 - I can't find the parameter documented anywhere, though.

BTW: best way I've found to update the kernel under RH6.2 is to install the 
kernel-2.2.16-3.src.rpm, extract with 'rpm -bp', then go modify the config file 
that corresponds to whichever version you'll be using (i686-smp, for example), 
then go back and use 'rpm -bb' to rebuild the RPM(s).  [Warning: takes a long 
time, because it builds eight(?) versions of the kernel]
Comment 2 Alan Cox 2000-08-22 14:52:07 EDT
max_scsi_luns=8

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