If you can try to pick up a cheap IBM M1015 Raid controller that you can configure as JBOD (look to pay no more then £50 or $75). Flash it to the standard LSI firmware (google M1015 LSI firmware...there's plenty of forum pages on this). Add your new drives to this controller, build new raid on this new controller......copy dataset from old array. I personally would NEVER suggest doing a migrate of drives or data sizes on an active live dataset...if anything goes wrong you could easily kill your data and have no backup. On 9 June 2015 at 19:46, Wols Lists <antlists@xxxxxxxxxxxxxxx> wrote: > On 09/06/15 06:23, Can Jeuleers wrote: >> On 08/06/15 21:28, Pierre Wieser wrote: >>> Hi all, >>> >>> I currently have an almost full RAID 5 built with 4 x 2 TB disks. >>> I wonder if it would be possible to migrate it to a bigger RAID 5 >>> with 3 x 6TB new disks. >> >> I'd recommend against it: >> >> https://en.wikipedia.org/wiki/RAID#Unrecoverable_read_errors_during_rebuild >> >> Jan >> > Please expand! Having read the article, it doesn't seem to say anything > more than what is repeated time and time on this list - MAKE SURE YOUR > DRIVES ARE DECENT RAID DRIVES. > > If you have ERC, then the odd "soft" read error doesn't matter. If you > don't have ERC, then your data is at risk when you replace a drive, and > it doesn't matter how big your drives are, it's the array size that matters. > > Cheers, > Wol > -- > 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 -- 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
