943714 wrote:We configure, as standard, h/w RAID (mirror) on our Sunfire servers. Two drives. Mirrored using the onboard and integrated RAID controller. O/s (Linux) only sees a single drive.
Also, there should not be a failure, because it looks same on all our 8 servers. there is no /dev/sdb, only /dev/sda. if there is failure, should not we have some tools to detect?
943714 wrote:From a default o/s perspective, no. You can try and use the IPMI drivers in the o/s to talk to hardware. There is also light-out-management (LOM) - do you have the management ports of that Sunfire server wired? You should - IMO one cannot effectively manage servers without LOM.
but, without rebooting the server, is there any command line I can use to show me that relationship, two internal, and they are bound as a logical name, and /dev/sda is a logical name, there are two physical ones underneath?