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. b 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 b 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 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.
