Install libaio
The Linux Asynchronous I/O library, libaio, must be installed before installing Vector.
Libaio has a huge performance benefit over the standard POSIX asynchronous I/O facility because the operations are performed in the Linux kernel instead of as a separate user process.
Note: The Vector installer may install libaio automatically or flag it as missing, depending on the Vector distribution you downloaded.
To install libaio
Using RPM:
rpm ‑ivh libaio*.rpm
Using the yum system update tool:
yum install libaio
Using Ubuntu:
apt-get update
apt-get install libaio1