How to Mounting RAID0 EBS Volumes after reboot on EC2?

Question

I've already attached two volumes to my EC2 instance and configured RAID0 for them. After a reboot, the volumes didn't re-attach. I thought I had configured them to attach on reboot in fstab but they didn't attach.

Here's the output from lsblk:

NAME    MAJ:MIN RM SIZE RO TYPE  MOUNTPOINT
xvda    202:0    0   8G  0 disk  
└─xvda1 202:1    0   8G  0 part  /
xvdf    202:80   0   1T  0 disk  
└─md127   9:127  0   2T  0 raid0 
xvdg    202:96   0  25G  0 disk  /journal
xvdh    202:112  0  50G  0 disk  /log
xvdi    202:128  0   1T  0 disk  
└─md127   9:127  0   2T  0 raid0

But if I run df -h, xvdf and xvdi aren't there:

Filesystem      Size  Used Avail Use% Mounted on
/dev/xvda1      7.8G  1.4G  6.3G  18% /
devtmpfs         15G   80K   15G   1% /dev
tmpfs            15G     0   15G   0% /dev/shm
/dev/xvdg        25G   45M   24G   1% /journal
/dev/xvdh        50G   53M   47G   1% /log

Where did I go wrong? I'm using Amazon Linux.

score 0 · Accepted Answer · answered Jan 25 '15 at 16:11

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I needed to reference the volume as /dev/md127 in fstab.

answered Jan 25 '15 at 16:11

Michael DeLorenzo

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http://www.n2ws.com/how-to-guides/connect-aws-ebs-volume-another-instance.html helped me. – MKatleast3 Dec 28 '16 at 05:51

score 0 · Answer 2 · edited Oct 11 '18 at 13:08

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You have to simply mount "md127" to any folder. You can do that by below command.

mount -t ext4 /dev/md0 /opt

here I have mounted "md127" to /opt/ folder

edited Oct 11 '18 at 13:08

RalfFriedl

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answered Oct 11 '18 at 12:39

Bhavik Bhalodia

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But that has to be done after every reboot, it's better to add a line to `/etc/fstab`. – RalfFriedl Oct 11 '18 at 13:09

How to Mounting RAID0 EBS Volumes after reboot on EC2?

2 Answers2