There is a pretty big file-server(~85TB) running xfs file system, on Centos 6.9 which we use for our backups.
We were out of space, so I added 10 new similar drives to the array and rebuilt RAID 6 using Mega Raid Manager, which took nearly a fortnight.
So, the total capacity is ~150TB and with the virtual drive it is ~135 TB.
I planned to use "parted" to expand the partition size:
[root@backup-serv ~]# parted /dev/sdb
GNU Parted 2.1
Using /dev/sdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Warning: Not all of the space available to /dev/sdb appears to be used, you can fix the GPT to use all of the
space (an extra 14649917440 blocks) or continue with the current setting?
Fix/Ignore? Ignore
Model: LSI SMC3108 (scsi)
Disk /dev/sdb: 150TB
Sector size (logical/physical): 4096B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kB 90.0TB 90.0TB 1
Note: File system does not display anything.
I have 60 TB fre space as shown below:
(parted) print free
Model: LSI SMC3108 (scsi)
Disk /dev/sdb: 150TB
Sector size (logical/physical): 4096B/4096B
Partition Table: gpt
Number Start End Size File system Name Flags
24.6kB 1049kB 1024kB Free Space
1 1049kB 90.0TB 90.0TB 1
90.0TB 150TB 60.0TB Free Space
It shows there is 60 TB of free space. So, when I try to expand the "partition 1", I get the following( could not detect file system error).:
(parted) resize
WARNING: you are attempting to use parted to operate on (resize) a file system.
parted's file system manipulation code is not as robust as what you'll find in
dedicated, file-system-specific packages like e2fsprogs. We recommend
you use parted only to manipulate partition tables, whenever possible.
Support for performing most operations on most types of file systems
will be removed in an upcoming release.
Partition number? 1
Start? [1049kB]? 1049kB
End? [90.0TB]? 130.0TB
Error: Could not detect file system.
df output:
[root@backup-serv ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/Root_VG-Root
ext4 107G 78G 24G 77% /
tmpfs tmpfs 32G 0 32G 0% /dev/shm
/dev/sda1 ext4 870M 154M 672M 19% /boot
/dev/sdb1 xfs 82T 81T 1.2T 99% /export/bak
Why is parted not detecting the filesystem?
Best Answer
I guess the older version of parted was not great.
I used Gparted Live(latest parted version) on USB and booted it. That seems to make it work! I was able to expand the partition using "resizepart".
Finally, after rebooting the filesystem was expanded using "xfs_growfs".
df output: