On Mon, Nov 06, 2006 at 10:58:43AM +0100, Arjan van de Ven wrote: > On Mon, 2006-11-06 at 11:07 +0200, Jaco van der Schyff wrote: > > Hi, > > > > I wonder if you guys might be able to help. Automatic LUN detection > > does not seem to be functioning on my kernel despite all my efforts to > > persuade it otherwise. (Kernel 2.6.17.6, although I tried newer versions > > aswell...) > > > > CONFIG_SCSI_MULTI_LUN=y is set in my kernel config, and I am passing > > max_luns=12 as kernel parameter. The scsi system is _not_ compiled as a > > module, and my HBA is in Adaptec 3930A-R, (aic79xx) > > > > Once the system has booted, I can force it to detect all luns with: > > > > echo "0 0 1" > /sys/class/scsi_host/host[x]/scan > > echo "0 0 2" > /sys/class/scsi_host/host[x]/scan > > echo "0 0 3" > /sys/class/scsi_host/host[x]/scan > > > > I have a hardware RAID array connected to the HBA which maps 4 x 1TB > > slices to LUNS[0-3]. > > > > Like I said the kernel is only interested in LUN0 for some reason... > > > > Any way I can ask my kernel to detect all LUNs at startup? > > Hi, > > what probably is needed is to teach the kernel about your array and to > make the kernel either scan all luns or ask the device which luns it > has. > Can you post the /proc/scsi/scsi entry for your array ? (only for the > LUN0 is enough); that information is going to be needed to make a > special entry for your array with either of the two behaviors.. > Contents of /proc/scsi/scsi: Attached devices: Host: scsi0 Channel: 00 Id: 06 Lun: 00 Vendor: PE/PV Model: 1x6 SCSI BP Rev: 1.0 Type: Processor ANSI SCSI revision: 02 Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: MegaRAID Model: LD 0 RAID1 139G Rev: 521X Type: Direct-Access ANSI SCSI revision: 02 Host: scsi1 Channel: 00 Id: 00 Lun: 00 Vendor: SA-6640S Model: Rev: R0.0 Type: Direct-Access ANSI SCSI revision: 03 The device is question is the SA-6640S on scsi1:0:0:0 http://www.maxtronic.com/raid_systems/janusraid_series/janusraid_sa-6640s/ Kind regards, - Jaco - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
