This is the output of fdisk -l
Disk /dev/sda: 5.5 TiB, 6001175126016 bytes, 11721045168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 3F81FC32-1FB9-4EE4-8226-95022D806E2C
Device Start End Sectors Size Type
/dev/sda1 4096 67112959 67108864 32G Linux RAID
/dev/sda2 67112960 68161535 1048576 512M Linux RAID
/dev/sda3 68161536 4291825663 4223664128 2T Linux RAID
/dev/sda4 4291825664 11721045134 7429219471 3.5T Linux RAID
/dev/sda5 2048 4095 2048 1M BIOS boot
Partition table entries are not in disk order.
Disk /dev/sdb: 5.5 TiB, 6001175126016 bytes, 11721045168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 03C36C97-C821-4AC7-A1C4-26B1494E2BDD
Device Start End Sectors Size Type
/dev/sdb1 4096 67112959 67108864 32G Linux RAID
/dev/sdb2 67112960 68161535 1048576 512M Linux RAID
/dev/sdb3 68161536 4291825663 4223664128 2T Linux RAID
/dev/sdb4 4291825664 11721045134 7429219471 3.5T Linux RAID
/dev/sdb5 2048 4095 2048 1M BIOS boot
Partition table entries are not in disk order.
Disk /dev/md2: 2 TiB, 2162380767232 bytes, 4223399936 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md3: 3.5 TiB, 3803625095168 bytes, 7428955264 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md0: 32 GiB, 34325135360 bytes, 67041280 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md1: 511 MiB, 535822336 bytes, 1046528 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
What I want to achieve is to shrink /dev/md3 from 3.5T to 100GB and to "give" all the other space to /dev/md2 (extend the /dev/md2 from 2TB to 5.4TB)
I cannot have physical access to server in order to use a Live CD so the whole thing has to be done from command line,using fdisk and resize2fs.
Any thoughts or advice?
