On Mon, 08 Sep 2014 09:18:11 +0200 "azurIt" <azurit@xxxxxxxx> wrote: > > > > CC: linux-raid@xxxxxxxxxxxxxxx > >On Sat, 06 Sep 2014 23:09:28 +0200 "azurIt" <azurit@xxxxxxxx> wrote: > > > >> Hi, > >> > >> i'm having problems with growing my RAID0 array over 2 TB. I installed two 4 TB drives, created 4 TB partitions but array cannot be resized over 2 TB. Superblock versoin is 0.90 and kernel version is 3.2.53 - according to linux RAID wiki, it should support 4 TB component/array size: > >> https://raid.wiki.kernel.org/index.php/RAID_superblock_formats#The_version-0.90_Superblock_Format > >> > >> Some more info: > >> > >> # mdadm --detail /dev/md2 > >> /dev/md2: > >> Version : 0.90 > >> Creation Time : Tue Sep 28 16:54:04 2010 > >> Raid Level : raid1 > >> Array Size : 2147483520 (2048.00 GiB 2199.02 GB) > >> Used Dev Size : 2147483520 (2048.00 GiB 2199.02 GB) > >> Raid Devices : 2 > >> Total Devices : 2 > >> Preferred Minor : 2 > >> Persistence : Superblock is persistent > >> > >> Update Time : Sat Sep 6 23:04:44 2014 > >> State : clean > >> Active Devices : 2 > >> Working Devices : 2 > >> Failed Devices : 0 > >> Spare Devices : 0 > >> > >> UUID : 9a363004:ad04abfe:2e31e1c3:caf66df4 > >> Events : 0.77066 > >> > >> Number Major Minor RaidDevice State > >> 0 8 33 0 active sync /dev/sdc1 > >> 1 8 49 1 active sync /dev/sdd1 > >> > >> > >> > >> > >> > >> > >> > >> # fdisk /dev/sdd > >> > >> WARNING: GPT (GUID Partition Table) detected on '/dev/sdd'! The util fdisk doesn't support GPT. Use GNU Parted. > > > >Why are you using "fdisk" even though "fdisk" is telling you not to use it? > > > >What does > > cat /proc/partitions > > > >say about the sizes of the partitions? > > > >NeilBrown > > > > > > I, of course, didn't use fdisk to create partitions - they were created using cgdisk, but it's graphical tool so i wasn't able to send output from it, so i get output from fdisk to prove, that partitions are large enough. Yet fdisk *didn't* prove that the partitions are large enough - it said the partitions were: /dev/sdd1 1 4294967295 2147483647+ ee GPT ^^^^^^^^^^^ 2 Gig. And /proc/partitions tells me: > > > # cat /proc/partitions > major minor #blocks name > > 9 2 2147483520 md2 > 8 32 3907018584 sdc > 8 33 2147483647 sdc1 > 8 48 3907018584 sdd > 8 49 2147483647 sdd1 that the partitions are 2Gig. You need to sort the partition size out. I cannot help you. I have no experience with GPT. Maybe a reboot? NeilBrown
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