Hi Sandra, > I’ve recently been researching the issue of obtaining RAID status on Linux > (using a library or API, not through scripts). I’ve read that CSMI codes can > be issued (using ioctl() calls) to get RAID status, and from my > understanding (please correct me if I’m wrong), dmraid doesn’t use CSMI at > all, and the status is obtained using the metadata on the member drives. > Does this mean that using CSMI and ioctl is not possible on Linux, or does > this mean that using CSMI and ioctl is a bad idea on Linux? CSMI is an interface introduced by Compaq which never gained traction nor was accepted as an industry standard. It's only supported by the low-level drivers that manage controllers sold by Compaq/HP. That is mptlinux, mpt2sas and probably the cciss driver as well which btw has been replaced by hpsa by now. Stay away from CSMI. It's proprietary and obsolete. ...Juerg -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
