-: In this section of the course,
we're going to be talking all about
how to troubleshoot storage device issues
including boot issues, storage issues,
drive performance issues, and issues with RAIDs.
So as we move through this section
we're again going to be focused on domain five,
hardware and network troubleshooting
as we fully cover objective 5.3.
Objective 5.3 states that given a scenario
you must be able to troubleshoot and diagnose problems
with storage devices and RAID arrays.
So as we begin this section,
we're going to first take a look at different boot issues
including the storage device not being found by the bios
or UEFI during the boot process and others.
Then we'll move into some different storage device issues
such as when a device makes a grinding or clicking sound,
it's LED status indicators display a fault to you,
data loss or corruption occurs, and SMART failures,
which stands for the self monitoring analysis
and reporting technology that is built into
most modern storage devices.
Next, we're going to move into our discussion
of drive performance issues
such as low input/output operations per second,
which is known as IOPS.
After that, we'll cover issues with RAID arrays
such as a disc failure in the RAID
or a failure of the entire RAID itself.
As you're going to learn in this section of the course
there are lots of potential storage device issues
that you're going to encounter as a technician in the field.
So let's get started with our coverage
of how to troubleshoot storage devices
in this section of the course.