[Linux-cluster] Can't see all volumes

Jay Leafey jleafey at utmem.edu
Thu Feb 15 17:34:37 UTC 2007

You might want to change the number of LUNs visible to the SCSI adapter. 
  We've got a Fibre-based SAN and we use a lot more than two LUNs.  You 
can alter the number of LUNs the SCSI subsystem sees by adding the 
following to your /etc/modprobe.conf file:

options scsi_mod max_luns=255

This will tell the SCSI subsystem to allow for up to 255 LUNs for each 
SCSI device.

Since we boot off of local storage I'm not sure how you would handle 
this on boot, but I imagine it can be passed as a boot-time kernel 
option for the initial install.

Just a thought!
Jay Leafey - University of Tennessee
E-Mail:  jleafey at utmem.edu  Phone:  901-448-5848  FAX:  901-448-8199
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