> > Is there any method to just resync WRITTEN data to new-added-disk ? > > Or any developing plan to add this feature? > > No, because md is a block device it has no knowledge of what data has > actually been written to the disk or where it is stored. This means it > has to rebuild the entire disk. > > There are plans to improve this by keeping track of which stripes have > been written to, which should help (and will also mean no need for an > initial RAID sync). I don't know whether this has progressed beyond > the idea stage yet though. Interesting - do you have any docs about this? I haven't seen any talk on this list about it... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 roy@xxxxxxxxxxxxx http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html