Hi Owen, Owen Williams wrote:
Hello, I have a SuperMicro 7045A-T with a 4 SAS drives connected to an on board LSI 1068e. The only way I have found to install linux to see these drives is to use either RHEL or SLES and LSI's proprietary mesgasr driver. Apparently the driver will only work with 2.6.19 and below. The driver: ftp://ftp.supermicro.com/driver/SAS/LSI/Driver/1068/SR/Linux/09.32_RedHat5.zip Is this still the case? I see mention of 1068e in fusion drivers mptbase and mptsas but the/my usual distros don't pick up the drives. Is it possible that because the chip is labelled: 'Subsystem: Super Micro Computer Inc Unknown device a480' that installers can't cope?
No, that's because this HBA has a software RAID built-in which you can't even disable. So it will always try to write (and read) some metadata off the disk and hence will be quite unhappy if the metadata was overwritten, eg by an installation. However, the HBA itself is just a plain mptsas device, so an echo 1000 0059 > /sys/bus/pci/drivers/mptsas/new_id will make the (raw) disks appear. And 'dmraid' knows the DDF1 metadata format used by this chip, so you can easily install on the dmraid disk without the risk of overwriting any metadata. HTH, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) -- 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
