Amazon Marketplace AMI and EBS volume setup

Hey guys,

I recently started an upgrade of my Couchbase 3.0.3 cluster in Amazon, by spinning up new instances from the Amazon Marketplace with Couchbase 4.0.0 AMI from

I noticed that the default template for spinning up these VMs attaches a 40GB EBS volume, however the volume is not used for the /opt/couchbase/var directory. The /opt/couchbase/var was linked to /mnt/ebs, while the actually EBS volume was mounted under /media/ephemeral0.

Any idea if its a known bug/issue?