Hello - I'm using Redhat Enterprise 4, Update 2, with kernel 2.6.9-22, and am having an issue with multiple LUNs on an Adaptec controller. The controller is a: 09:04.0 SCSI storage controller: Adaptec AHA-3960D / AIC-7899A U160/m (rev 01) On startup, I can see everything on LUN 0: # cat /proc/scsi/scsi Attached devices: Host: scsi0 Channel: 00 Id: 01 Lun: 00 Vendor: EMDI 1HD Model: 40704 Rev: 0001 Type: Direct-Access ANSI SCSI revision: 03 Host: scsi2 Channel: 00 Id: 06 Lun: 00 Vendor: PE/PV Model: 1x2 SCSI BP Rev: 1.0 Type: Processor ANSI SCSI revision: 02 Host: scsi2 Channel: 01 Id: 06 Lun: 00 Vendor: PE/PV Model: 1x4 SCSI BP Rev: 1.0 Type: Processor ANSI SCSI revision: 02 Host: scsi2 Channel: 02 Id: 00 Lun: 00 Vendor: MegaRAID Model: LD 0 RAID1 69G Rev: 521S Type: Direct-Access ANSI SCSI revision: 02 Host: scsi2 Channel: 02 Id: 01 Lun: 00 Vendor: MegaRAID Model: LD 1 RAID0 279G Rev: 521S Type: Direct-Access ANSI SCSI revision: 02 But am seeing the following error through dmesg: # dmesg |grep -i lun Attached scsi disk sda at scsi0, channel 0, id 1, lun 0 scsi: host 0 channel 0 id 1 lun 0x00000200080c0400 has a LUN larger than currently supported. scsi: host 0 channel 0 id 1 lun 0xff010000ffffffff has a LUN larger than currently supported. scsi: host 0 channel 0 id 1 lun 0x0002202020202020 has a LUN larger than currently supported. scsi: host 0 channel 0 id 1 lun808529923 has a LUN larger than allowed by the host adapter scsi: host 0 channel 0 id 1 lun3078 has a LUN larger than allowed by the host adapter Clearly the controller is misreporting LUNs > 0, and so I've tried several things: 0) Confirming that the latest firmware is installed on the controller (it is - 3.1), 1) Recompiling and installing the vanilla 2.6.15.4, enabling CONFIG_SCSI_MULTI_LUN, 2) Adding "options scsi_mod max_luns=128" to /etc/modprobe.conf, 3) Explicitly passing scsi_mod.default_dev_flags=0x40000 to the kernel through grub.conf, 4) Confirming that multi-LUN support is enabled in the Adaptec BIOS, on both channels. So far, no luck - same errors. I was wondering if there was anything obvious that I was missing. Thanks much in advance, - Corey ** -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subjecthttps://www.redhat.com/mailman/listinfo/redhat-list
