Amazon announced high I/O instances today. This is huge for
anyone with a database larger than available memory, as it’s been
a complete nightmare dealing with EBS up till now. Now your
Cassandra, MongoDB, MySQL, or whatever your using should be able
to perform well without requiring keeping your entire dataset in
With each instance you get 2x1TB of disk. In this tutorial I’ll
be setting it up as a RAID0 to get a single 2TB disk which should
deliver excellent performance.
Before you get started, make sure you’ve got mdadm installed:
apt-get install mdadm
To begin, check fdisk and make sure your 1TB drives are mounted.
root@ip-10-140-128-232:~# fdisk -l
Disk /dev/xvda1: 8589 MB, 8589934592 bytes[Read more]
255 heads, 63 sectors/track, 1044 cylinders, total 16777216
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / …