Hello,


i'm karthick , hope all are good and everything is fine. im new to this kind of forum. Lets share our knowledge and learn lot more

Thank you..

Greetings Karthick.

Hi Karthick and welcome to LQ!

Hello and welcome to the forum

Hello Friends ,

I have some queries on increasing sapce in "Raid1" partition on centos 6

I have 2 HDD (sda & sdb) with four partition (swap, /boot, / and /opt), all are configured on Raid1. The four raid1 partition (md0, md1, md2, md3)on each HDD

are taken from four "part" of each HDD

[root@mail ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.7T 0 disk
├─sda1 8:1 0 32G 0 part
│ └─md0 9:0 0 32G 0 raid1 [SWAP]
├─sda2 8:2 0 512M 0 part
│ └─md1 9:1 0 511.4M 0 raid1 /boot
├─sda3 8:3 0 100G 0 part
│ └─md2 9:2 0 100G 0 raid1 /
├─sda4 8:4 0 3.5T 0 part
│ └─md3 9:3 0 3.5T 0 raid1 /opt
└─sda5 8:5 0 1M 0 part
sdb 8:16 0 3.7T 0 disk
├─sdb1 8:17 0 32G 0 part
│ └─md0 9:0 0 32G 0 raid1 [SWAP]
├─sdb2 8:18 0 512M 0 part
│ └─md1 9:1 0 511.4M 0 raid1 /boot
├─sdb3 8:19 0 100G 0 part
│ └─md2 9:2 0 100G 0 raid1 /
├─sdb4 8:20 0 3.5T 0 part
│ └─md3 9:3 0 3.5T 0 raid1 /opt
└─sdb5 8:21 0 1M 0 part

I need to increase the space only on /opt , So i added one more HDD - sdc.

[root@mail ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.7T 0 disk
├─sda1 8:1 0 32G 0 part
│ └─md0 9:0 0 32G 0 raid1 [SWAP]
├─sda2 8:2 0 512M 0 part
│ └─md1 9:1 0 511.4M 0 raid1 /boot
├─sda3 8:3 0 100G 0 part
│ └─md2 9:2 0 100G 0 raid1 /
├─sda4 8:4 0 3.5T 0 part
│ └─md3 9:3 0 3.5T 0 raid1 /opt
└─sda5 8:5 0 1M 0 part
sdb 8:16 0 3.7T 0 disk
├─sdb1 8:17 0 32G 0 part
│ └─md0 9:0 0 32G 0 raid1 [SWAP]
├─sdb2 8:18 0 512M 0 part
│ └─md1 9:1 0 511.4M 0 raid1 /boot
├─sdb3 8:19 0 100G 0 part
│ └─md2 9:2 0 100G 0 raid1 /
├─sdb4 8:20 0 3.5T 0 part
│ └─md3 9:3 0 3.5T 0 raid1 /opt
└─sdb5 8:21 0 1M 0 part
sdc 8:32 0 5.5T 0 disk


Now my question is,

1. Is it possible to increase the space only on /opt ? (in this scenario im asking)
2. If possible, Can i do two equal partition on sdc and may i use it for sda4 & sdb4 to increase the space on md3 (/opt) ?

Hope my explanation is bit clear, please help on my query.

Thank you,

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. Your post duplicates your thread in the Linux Server forum. There is at least one answer to that thread in that forum. Please continue there versus here where it is for introductions.