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how do i mount raid array in CentOS?

I have 2 raid array's setup. 2x1TB in raid1. How do i mount the 2nd array? I want to be able to save files to the 2nd array, but its not listed. md127 was originally saying "pending", but i did get it switched over to "active".

[root@server public_html]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md2 909G 33G 830G 4% /
tmpfs 7.8G 0 7.8G 0% /dev/shm
/dev/md0 190M 60M 121M 33% /boot

Personalities : [raid1]
md127 : active raid1 sdd1[1] sdc1[0]
976629568 blocks super 1.1 [2/2] [UU]
bitmap: 0/8 pages [0KB], 65536KB chunk

md0 : active raid1 sda1[0] sdb1[1]
204736 blocks super 1.0 [2/2] [UU]

md2 : active raid1 sda3[0] sdb3[1]
968036160 blocks super 1.1 [2/2] [UU]
bitmap: 4/8 pages [16KB], 65536KB chunk

md1 : active raid1 sda2[0] sdb2[1]
8384448 blocks super 1.1 [2/2] [UU]

arnold

You need to run mkfs first to format it, or use pvcreate md12607 to add it into the LVM volume overlay.

If you use mkfs to setup the filesystem on it, you need to decide where you want this volume to appear.
Mount /dev/md127 /mount_point
Mount_point can be /home or any other location you want this storage to be.

AfternoonShift

ASKER

i'm still not really sure what to do... i wanna call the mount /home.

while i looked up the command mkfs, i'm confused of what exactly it wants.

mkfs -t ext4 /dev/md127 /home ???

what ext do i want? i see ext2, ext4... etc.

to keep everything in line, can i rename md127 to md3 ?

do i need to add anything to the /etc/mdadm.conf ?

[root@server public_html]# mdadm --detail /dev/md127
/dev/md127:
Version : 1.1
Creation Time : Tue Apr 7 21:21:40 2015
Raid Level : raid1
Array Size : 976629568 (931.39 GiB 1000.07 GB)
Used Dev Size : 976629568 (931.39 GiB 1000.07 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent

Intent Bitmap : Internal

Update Time : Sun Apr 19 02:52:44 2015
State : active
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0

Name : localhost.localdomain:3
UUID : 1f2d576e:0e18332f:b8d14fbf:6464d6c9
Events : 1451

Number Major Minor RaidDevice State
0 8 33 0 active sync /dev/sdc1
1 8 49 1 active sync /dev/sdd1

SOLUTION

arnold

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AfternoonShift

ASKER

I guess i should explain my setup better. its a webserver setup with about 8 domains. 7 of the domains are on the first Raid1 while i just want to setup the 2nd raid for the 8th website, since it takes up a lot data(wedding/event photography/video).

So i don't want all users /home to be on the 2nd drive. I planned to just make a symbolic link of the /home/photographyuser/ to point to the 2nd raid array once i create the user in DirectAdmin.

Sorry about the confusion. so should i name the drive mount to something else? ie: /home2 ? so i don't need to move all data to another drive.

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arnold

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AfternoonShift

ASKER

thanks Arnold. i'll go with LVM! :D Thanks for all your help!