Thinking about setting-up as distributed RAID array over iSCSI. Has anyone else tried this, if so what was your experience.
To be more specific I am thinking of a couple of CentOS servers each with say four drives, all published as iSCSI targets. Then one Windows Server accessing all of these via iSCSI and connecting those targets together to create a software RAID array.
One of my concerns is the rebuild time if one of those servers is offline for a short amount of time. Would it then be necessary to rebuild the entire array from scratch or is software RAID clever enough to only rewrite sectors that have changed? My concern being that a small network glitch could otherwise potentially cause a long rebuild process.