How to increase disk size for Master partition

tareq.mohd · 02-25-2015, 03:06 PM

Hello

Is there any way to increase the disk size without harming the work and datas. Just to be more specific and clear, I am providing the screenshot, wherein I want to increase the disk size from 49.22GB to 200GB.

Any help/suggestion much appreciated.

michaelk · 02-25-2015, 05:06 PM

Welcome to LinuxQuestions

Yes but there is no guarantees that something might go wrong so it is always best to have backups. We need to know more about your hardware and drive configuration?

Physical or virtual machine?
What kind of storage i.e. single disk/RAID etc
Are you using LVM?

tareq.mohd · 02-26-2015, 10:43 AM

Quote:

Originally Posted by michaelk

Welcome to LinuxQuestions

Yes but there is no guarantees that something might go wrong so it is always best to have backups. We need to know more about your hardware and drive configuration?

Physical or virtual machine?
What kind of storage i.e. single disk/RAID etc
Are you using LVM?

Hi Michaelk,
Many thanks for the hopeful reply. we are using "2 x 2 TB SATA 6 Gb/s 7200 rpm HDD (Software-RAID 1)". We are using solusvm on the physical machine to have more vm facilities.

michaelk · 02-26-2015, 09:19 PM

RAID complicates things a bit.
Do you want to increase / but keep the others the same size?

tareq.mohd · 02-27-2015, 12:48 AM

Quote:

Originally Posted by michaelk

RAID complicates things a bit.
Do you want to increase / but keep the others the same size?

Yes, want to increase the Disk size prior. But do you think we need to increase others as well?

pan64 · 02-27-2015, 12:55 AM

No, you may need either add new disks or lower the space on the other partitions. The real question is where is the space to add (do you have free disk space anywhere?)

tareq.mohd · 02-27-2015, 01:13 AM

Quote:

Originally Posted by pan64

No, you may need either add new disks or lower the space on the other partitions. The real question is where is the space to add (do you have free disk space anywhere?)

Thanks again. Hope the below info will help.

Quote:

[root@server1 ~]# sudo fdisk -l
Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000ceebb

Device Boot Start End Blocks Id System
/dev/sdb1 1 523 4194304+ fd Linux raid autodetect
Partition 1 does not end on cylinder boundary.
/dev/sdb2 523 588 524288+ fd Linux raid autodetect
Partition 2 does not end on cylinder boundary.
/dev/sdb3 588 243202 1948791896+ fd Linux raid autodetect

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00063111

Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 64 243202 1953001472 8e Linux LVM

Disk /dev/mapper/vg_bt-lv_root: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mapper/vg_bt-lv_swap: 4294 MB, 4294967296 bytes
255 heads, 63 sectors/track, 522 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/md127: 4294 MB, 4294901760 bytes
2 heads, 4 sectors/track, 1048560 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/md126: 536 MB, 536805376 bytes
2 heads, 4 sectors/track, 131056 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/md125: 1995.6 GB, 1995562745856 bytes
2 heads, 4 sectors/track, 487197936 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Disk /dev/mapper/vg_t-lv_home: 1941.9 GB, 1941887254528 bytes
255 heads, 63 sectors/track, 236087 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Mr.Russy · 03-03-2015, 11:55 PM

What information do you get back when you run "vgdisplay -v"? Based on the output from fdisk it appears you are using LVM and you maybe be able to simple use lvextend and resizefs to increase the disk space.