I have a Adaptec 5805 HW RAID card with a 6.3 TB RAID-6 array (partitioned via Parted GPT, all of which is formatted as ext4 on CentOS 5.6).
I want to expand this to 7.5GB and from reading these are the steps I've come up with, my question is, do I have the steps right on the linux part, and why is parted showing the partition as ext3 and not as ext4?
NOTE: I've read that Parted does not support ext4 yet and man Parted states "ext3 resizing does not currently work with Parted".
I've been able to backup all 6 TB of data on this drive prior to expanding.
- Verify with Fix Raid array in Adaptec Storage Manager
Expand Raid-6 Array in Adaptec Storage Manager
on Centos 5.6:
Unmount target drive/partition
- Expand partition, keeping the start position the exact same as it is currently - use Sector mode if using parted (but parted says NOT to use Parted for resizing ext3 or ext4)
resize2fs(or should I run resize4fs as it's ext4?)
Hopefully someone who has resized an ext4 drive over 2TB can chime in and state what they did to successfully resize their mount/partition. Every guide I've read says to use Parted , but
man parted says to use
fdisk doesn't work with partitions over 2 TB that need GPT).
So my biggest issues is with the resize partition step of this process as I'm dealing with a 6 TB ext4 partition.
Parted -l output (when unit set to Sector):
Model: Adaptec 6tbRD6ada8 (scsi) Disk /dev/sdb: 6979GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 17.4kB 6979GB 6979GB ext3 primary
fdisk -l of target drive:
Disk /dev/sdb: 6979.3 GB, 6979309273088 bytes 255 heads, 63 sectors/track, 848519 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 1 267350 2147483647+ ee EFI GPT
cfdisk (util-linux 2.13-pre7) Disk Drive: /dev/sdb Size: 6979309273088 bytes, 6979.3 GB Heads: 255 Sectors per Track: 63 Cylinders: 848519 Name Flags Part Type FS Type [Label] Size (MB) sdb1 NC Primary EFI GPT 2199023.26 * Pri/Log Free Space 4780283.11 *