Adam Huffman wrote: > Hope it's okay to send "user problems" here. Sure, that's fine. > I've made a 15TB logical volume on a 21TB RAID6 iSCSI array. > > When I try to make an ext4 filesystem I see the following error: > > mke4fs -E stride=32 stripe-width=384 -i 65536 -j -v \ > /dev/mapper/vg2md3000isata-homes2 > > mke4fs 1.41.9 (22-Aug-2009) > mke4fs: invalid blocks count - /dev/mapper/vg2md3000isata-homes2 You're not specifying the -E options correctly: [root@host e2fsprogs]# misc/mke2fs.static -t ext4 -E stride=32 stripe-width=384 /mnt/test2/testdir/bigfile mke2fs 1.41.12 (17-May-2010) mke2fs.static: invalid blocks count - /mnt/test2/testdir/bigfile This works - you need comma-separated -E options: [root@host e2fsprogs]# mke4fs -E stride=32,stripe-width=384 /mnt/test2/testdir/bigfile mke4fs 1.41.12 (17-May-2010) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=32 blocks, Stripe width=384 blocks 1006632960 inodes, 4026531840 blocks ... Without the comma, mkfs thinks you are trying to mkfs a device called "stripe-width=384" with a block count of "<devicename>" Odd eh ;) Perhaps echoing back the blocks count which it found to be invalid (in this case the devicename string) would make the failure more obvious... > When i searched briefly yesterday, some documentation stated that the > filesystem limit was now 16TB, and some that the limit was much higher. Yep that should work. -Eric > The system is running Centos 5.5, e4fsprogs-1.41.9-3.el5. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html