Tuesday, November 19, 2013

Creating an LVM Volume on EBS with XFS

Well that's mouth full.. I wanted to add some storage to a VM but wanted to be able to add to it later if I got to that point. So, I attached a 100G EBS volume, and here's how I formatted it. It's EBS as the physical volume, then LVM formatted as XFS. You can attach another EBS volume to this VM, then add it to the volume group later, striped for increased capacity. Anyway, here's how it's done:
rpm -q xfsprogs &> /dev/null || yum -y instal xfsprogs
mkdir /export
pvcreate /dev/vdb
vgcreate VolGroup_EBS /dev/vdb
lvcreate -I 2M -l 100%FREE -n export VolGroup_EBS
mkfs.xfs /dev/mapper/VolGroup_EBS-export
mount /dev/mapper/VolGropu_EBS-export /export/
Finally, add this to /etc/fstab to get it mounted when your system boots:
/dev/mapper/VolGroup_EBS-export /export  xfs defaults 1 1

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