At Wed, 5 Jan 2011 13:43:24 -0500 CentOS mailing list centos@centos.org wrote:
On Wed, Jan 05, 2011 at 10:37:23AM -0800, Alan Hodgson wrote:
On January 5, 2011 08:53:16 am Abilio Carvalho wrote:
I have Centos 5.2 and am trying to set up my first tape loader, a
Multiple LUN support has worked fine in Linux since, well, since there has been Linux on SCSI afaik. If your SCSI controller sees it CentOS should see it. Unless the driver sucks.
RedHat 4 definitely didn't scan multiple LUNs by default, even though the drivers could handle it. I thought RedHat 5 did, but it's possible to configure it not to.
The CentOS 4.8 kernel I have (2.6.9-89.0.16.EL) does not have CONFIG_SCSI_MULTI_LUN set:
sauron.deepsoft.com% grep LUN /boot/config-2.6.9-89.0.16.EL CONFIG_PREEMPT_VOLUNTARY=y # Some SCSI devices (e.g. CD jukebox) support multiple LUNs # CONFIG_SCSI_MULTI_LUN is not set
But the CentOS 5.5 kernel (-2.6.18-194.26.1.el5) does:
sauron.deepsoft.com% grep LUN /boot/config-2.6.18-194.26.1.el5 CONFIG_PREEMPT_VOLUNTARY=y # Some SCSI devices (e.g. CD jukebox) support multiple LUNs CONFIG_SCSI_MULTI_LUN=y