Situation: Bitmap feature is enabled for a mirroring array with three members.
Is there one global bitmap marking areas of the array yet to be resynced or one bitmap per member?
I.e. if one member is on a internal (laptop) hdd and the other two are on separate external SATA drives, will the external drives resync only what is needed when they are attatched one at a time?
Or will, if one of the external drives isn't resynced that often, the other drive allways resync more that needed when it is attatched? (also everything that the second mirror is yet missing)
I am using a HotplugRaid and found out there might be some little bugs in the md driver that prevents true hotpluging of (complete not degraded) raids between machines: https://wiki.ubuntu.com/ReliableRaid