Hi Jordan, > I haven't been able find any info on this subject: Is it > somehow possible to mirror a partition from the local machine > to a remote machine in real time using the md driver? > According to the FAQ, "Software RAID works with any > block device in the Linux kernel." Is there some way to create > a block device which points to a block device on another machine? > Or is this just a Bad Idea to begin with? Any help would be > appreciated. While this might work it's definitely a bad idea: The standard raid code has no concept of one device being local and one on a (slower) network connection; it'll read from both drives and thus give lousy performance. You should use the drbd driver instead, see http://www.linbit.com/en for more info; drbd does disk mirroring over a network connection and also has code to correctly handle disconnect / reconect. for reconect it does a quick sync whenever safely possible (just sync the blocks that were changed while the 2nd computer was offline). drbd uses a plain network connection for communication, so if you want/need encryption you'll have to set that up seperately using one of the many encrypting tunnel drivers (cipe, freeswan (ipsec), poptop..). Bye, Martin - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
