Implementing the RAID is little challenging and user must take decision to
install either software-based RAID or hardware based RAID.Software based RAID
configuration is cheap in price and OS is managing it internally. As all disk
drives are connected and accessed using operating system which helps to
configure RAID. Hardware base RAID controller also a suitable option for our
scenario which required hard drive and RAID controller which need to buy.In
our implementation we used Hardware based RAID controller is used which is
available in the market helps to install RAID in server. Using RAID controller,
we have more advantages like, it is a dedicated processing unit means RAID
card will mange all RAID configuration apart from the operating system. Gives
more speed and space to read and write operations. This can be work on any
operating system also maintaining hard drives is very easy just replace the old
drive with new one. The cost of implementing RAID is costly but it has
various levels and cost of the implementation varies as per levels. RAID has
different attributes which are mirroring data, stripping data, parity and mirroring
stripping sets etc.
Hardware cost:
Hardware cost will change as per RAID levels as follows,
RAID level 0:
Just one hard disk used to store data and that data stripped in disk. The extra
disk cost $100 which is less costly than others.
RAID level1:
Mirroring data between two identical disk, means to install level 1 it required
least 4 hard disks. Which cost approximately $400.
RAID level 5:
It strips data and distributing parity data across all disks. This architecture does
not require extra hard drive.
Installing RAID is take up to 30 min to install and testing data will take 1
hour.
I would purchase the Adaptec RAID 8405 card to begin with. This card is
compatible with RAID 0.1,5 and 10 and is also compatible with windows. This
device also holds up to 4 drives so it would be perfect to run RAID 10 I
believe. The cost for the RAID controller is $430 and each of the chose M.2
ssd cards is $9.79 so cost wise it would top out around $500 with tax being
included. As far as how long it would take to install and test I would estimate
from 24 to 48 hours. Mostly because I have never done it so testing and
making sure that everything works would be time consuming. I chose the
adaptec controller due to the fact that it supports all of the 4 basic types of
RAID. Something of a jack of all trades which is something that is appealing
to me. Here are the links to the M.2 SSDs and the RAID controller. "A RAID
controller card is a device between the host system and the storage system, and
allows the two systems to communicate with each other. There are standard
redundant array of independent disks levels that comprise a basic set of RAID
configurations that employ techniques of mirroring, parity, and striping to create
large dependable data stores from multiple general-purpose computer HDD's or
hard disk drives. Now, RAID 0 (striping), RAID 1 (mirroring) and it's variants,
RAID 5 (distributed parity), and RAID 6 (dual party). A RAID controller card
is similar to an HBA, but can also add redundancy, optimize performance,
reduce latency, or even make smart decisions on wrether to store data on an
HDD or an SSD cache, depending on user needs. Since these additional tasks
consume power and processing speed, RAID controllers are typically more
expensive than HBA's (Host Bus Adapters) and handle fewer devices." All of
that being said, and if performance and write is key, I think that RAID 5
would be the best candidate because it distributes parity, which evens out the
stress of a dedicated parity disk among all RAID members, there is no
bottlenecking, and if there is failure of a single drive, subsequent reads can be
calculated from the distributed parity so that no data is lost. RAID 5 requires
at least 3 drives and has block level striping. I think this would be expensive,
but worth it. However the drives should be the same size and speed for the
best results. RAID 1 would be the cheapest. It would take a very long time
to install and test setup. I'm approximating between 7 to 24 hours. Redundant
Arrays of Independent Disks (RAID) 1 technique must be implemented for
achieving fault tolerance in the specific scenario. The performance drag is high
even after the execution of 2 hard disk drives. Raid 5 would be the most
reliable option in the scenario as it strikes a balance between data security,
fault tolerance, and performance. Moreover, the RAID controller would work by
virtualizing the hard disk drives into distinctive groups with particular data
protection as well as redundancy features (Rouse, 2019).
The regular upgradation of the Windows version would help to manage the lag
issue and a graphics card could be further added to empty PCIe ×4 slot on
the motherboard. It would be beneficial as it would help to manage the delay
in the single hard drive by using the SATA connection.Making the purchase of
a WD Desktop Mainstream 2TB IntelliPower 64MB Cache SATA 6.0Gb/s 3.5"
Internal Hard Drive Kit would be an ideal option for desktops (Rouse, 2019).
The hard disk drive would cost about USD 100. The upgradation of the PCIe
x 4 graphics card would cost approximately USD 120 as it would have the
features that would help to address the issue relating to fault tolerance.
To be perfectly honest with you I have no clue About this weeks discussion
question. I am literally scratching my hair because I really do not know how
to ask of this question. But I will do the best I can right now.RAID is the
way of combining several independent and relatively small disks into a single
storage of a large size. The disks included into the array are called array
members. The disks can be combined into the array in different ways which
are known as RAID levels. I found the website they have different price
ranges. There was one that I came across. It was SYBA SI-PEX40071 PCI-
Express Controller Card is designed for businesses which require large data
storage. Equipped with dual chips, it gives you an easy way to add additional
eight internal SATA III ports to your computer without compromising
performance. The SATA III ports offer a blazing-fast data transfer rate of
6Gbps, while remaining backwards compatible with the SATA I and SATA II
specifications. This controller card supports Port Multiplier FIS Based or
Command Based switching, ensuring maximum performance. After doing the
research on RAID (Redundant Array of Independence Disk, I have a small
understanding on what it is.
You have 4 common types of RAID which is
RAID 0
RAID 1
RAID 5
RAID 10
Using RAID 0 could possible cause you to loose data because it is not full
tolerance.
The only good thing/benefit about RAID 0 is the speed. RAID 0 is not
duplicated and instead is spread through 2 separate disk. If any of the disk
fails all data will be lost.
RAID 1 is full tolerance, and disk 1 will have the same copies as disk 2. If
the one of the disk were to somehow get destroyed, you wouldn't lose DATA
because it has a duplicate copy.
Then we have RAID 5 which is fast and can store a lot of DATA . RAID
5 data is not duplicated but spreads across multiple disk. This is what a lot
of companies use.
The downside to RAID 5 is it reduces collective amount of DATA.
RAID 10, you will need 4 disk. The set of 2 disk are mirrored using a RAID
1 set up, and both sets stripped using RAID 0.
Downside is you can only use 50% of capacity for DATA storage.
In my opinion the best one to go for would be RAID 5, as it is more
common especially in businesses and I think RAID 10 would be really
expensive for some people, including me.
But me personally, I'd go for RAID 1 since it's more in my budget which is
49.99 after doing the research online.
RAID 0 would be the one I'd least likely get because the only benefit with it
is the speed and my data has a higher chance of getting lost.
This weeks discussion is a little tricky, because i really don't know much about
RAID. I did some research on RAID and if i were to purchase a hardware, i
would purchase a Dell H700 Controller.
The difference between the two RAID is that, RAID-1 is lower in price instead
of RAID-10. staying on a budget is always a good thing considering the price
of each RAID and hardware drive. considering my budget, i would purchase
RAID-1. comparing the price between RAID-1 and RAID-10, RAID-1 is about
$10 and RAId-10 is about $900 which makes a very big difference in price.
i chose RAID-1 because it is more in my price range and i can afford to
purchase it.
in order to install RAID-10 you will need to use the hardware or software
solution.
The hardware needed would be something along the lines of this, it goes into
the PCIe x4 slot and makes RAID 0, 1, and 10 possible. I would then
purchase 4 more of the same hard drive to make everything simple. After doing
research online, i believe that the best RAID level to use would be RAID 10,
if money is not an issue. RAID 10 does what RAID 1 (Mirroring) and 0
(Data Striping) do but together. RAID 0 is quick, but is not fault tolerant. It
stripes the data across the hard disks, so in the event that a disk fails you
lose all of the data. Raid 1 is not very fast, but it is fault tolerant. You are
only getting half of the amount of memory due to the data getting mirrored
onto the second disk. So in the event a disk fails, you do not lose all the
data on the disk. RAID 10 Combines the two, it requires a minimum of 4
disks, it stripes memory over the disks and then mirrors the data. Increasing
speed and not putting yourself at risk of losing the data on a disk. RAID
(redundant array of independent disks) is a way of storing the same data in
different places on multiple jard drives or solid-state drives to protect data in
the case of a drive failure. There are different RAID levels, however, and not
all have the goal of providing redundancy for a system.RAID works by placing
data on multiple disks and allowing input/output operations to overlap in a
balanced way, improving performance. Because the use of multiple disks
increases the mean time between failuresstoring data redundantly also increases
fault tolerance.
The cost of implementing one of these systems can vary depending upon the
specific needs and capabilities of your unit. The most bang for your buck
would probably be a RAID 5 system but it is the most expensive in the
group. To balance protection and power i would choose a RAID 3 or Raid 4
setup.
To build upon information about the performance of RAID-10, let's say that you
have a server with 20 hard drives, by making it a RAID-10 array, you are
effectively striping mirrors of those disks. So for example, you would have 10
mirrors that are stripped together for performance purposes. One of the great
things about RAID-10 is that the more mirrors that you have, the higher your
Input/Output Operations Per Second or IOPS. IOPS isn't necessarily more speed
during a file-copy though that many disks would help, IOPS are more operations
per-second. So if you were assigned to build a RAID array to support multiple
virtual-machine workloads, RAID-10 would be the best choice because those
multiple virtual-machines would really create a lot of Input Output on that array.
More IOPS is in the basic sense, more things that can be done at the same
time on the array.So at the end of the day, more mirrors inside of a RAID-
10 array allow for more IOPS. Without going crazy in-depth into this, you can
also use other storage technologies to increase your IOPS of your array by
using NVME or SAS/SATA SSD storage as a hot-cache tier zero storage. So
that all of the really common and frequently accessed data is stored in this
very highly capable storage and data that is pulled less frequently is pulled
from the much slower HDD's.
As I was looking online I decided I would buy a Raid kind of control thats
compatible with raid 10. RAID 10 because provides better performance and is
also a combination of raid 1 . It comes with fault tolerance and disk
mirroring. 10 data is corrupt across disks. When one of the disks gets an error
or begins to fail, data is automatically recreated from the distributed data block.
benefits of using 10 allows stuff to be swapped xx with no issues to users in
the case a drive fails, and you need to replace it. the RAID 5 being the more
professional choice, it will perform well. only difference is it does not mirror
the information but the other disc can recreate the information using parity.
