Maxim Sobolev wrote: > Dag-Erling Smørgrav wrote: > >> Maxim Sobolev <sobomax_at_portaone.com> writes: >> >>> Well, my knowelege about internals of software RAID controllers is >>> quite limited, but as long as I know they are no more than BIOS with >>> UI for setting up RAIDs and interface to main BIOS that hides internal >>> RAID structure allowing to boot off the RAID. Also they provide some >>> persistent storage for RAID configuration, I assume either in some >>> controller's NVRAM or on the HDDs. >> >> >> >> The configuration is always stored on-disk, otherwise it wouldn't be >> possible to recover from controller failure. >> >> >>> Therefore, the same set of GEOM >>> RAID modules can work with different software RAID controllers (SCSI, >>> ATA, SATA etc) if there will be a standard way to extract this info >>> from the controller's driver, and present it in some common >>> format. That's what I am talking about. >> >> >> >> You're kicking down open doors. This problem has already been solved >> for Vinum, which is conceptually identical from a GEOM point of view. > > > Nah. As I said there should be some standard way to extract RAID > configuration info out of controller's driver in controller-independent > format. > > -Maxim > Correct, and vinum lacks this. My goal with RAIDframe was to provide this, but I had to abandon it due to lack of time. ScottReceived on Wed Jun 23 2004 - 12:49:59 UTC
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