Hello everybody, I've been using a Raid5 with 3 disks of exactly the same size, a little bit more than 250 GB (reported as 251) Disk /dev/sdc: 251.0 GB, 251000193024 bytes 255 heads, 63 sectors/track, 30515 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 1 30513 245095641 fd Linux raid autodetect Now I want to add a 4th disk - and got one slightly smaller: sanjose:~ # fdisk -l /dev/sdd Disk /dev/sdd: 250.0 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk /dev/sdd doesn't contain a valid partition table Is it nevertheless possible (with some minimal losses in possible size) to add the new disk? The Funny thing - all disks are from Maxtor, and should have the same size. Thanks a lot Michael -- Michael HEBENSTREIT FH JOANNEUM / Aviation Alte Poststr. 149, 8020 Graz, Austria Tel.: +43-316-5453-6421 Fax.: +43-316-5453-6401 e-mail: michael.hebenstreit@xxxxxxxxxxxxxx - 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