Compare two hard drives

I have a pc with about 10 vmware vm [pc and server] on it [testing lab] I am looking on a faster hard drive [ssd is not a option] came across 1- SSHD 7200 RPM SATA 6Gb/s 64MB Cache 2- 6GB/s 5400rpm 128 MB Cache which would be a better choice?

https://smile.amazon.com/Seagate-FireCuda-Gaming-Solid-Hybrid/dp/B01IEKG484/ref=sr_1_fkmr0_4?ie=UTF8&qid=1514258876&sr=8-4-fkmr0&keywords=Seagate+FireCuda+Gaming+SSHD+1TB+SATA+6.0Gb%2Fs+2.5%22+Notebooks+%2F+Laptops+Internal+Hard+Drive+ST1000LX015

https://smile.amazon.com/gp/product/B01LWRTRZU/ref=ask_ql_qh_dp_hza
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Abraham DeutschIT professionalAsked:
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Tom CieslikIT EngineerCommented:
It looks like WD Black series 6TB HDD is fastest on the planet now

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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You will probably fine they are BOTH equal!

because the 7200 RPM drive, which technically would be fastest, compared to a 5400 RPM drive, but the 7200 RPM drive has less cache (SSD hybrid), than the 5400 RPM driver which has double the SSD (cache).

The purpose of cache, to help with the slower rotational spin, if these are the two you are comparing, and budget is not an issue.

We would select the SSHD 7200 RPM SATA 6Gb/s 64MB Cache
Abraham DeutschIT professionalAuthor Commented:
Tom Cieslik, you recommend the BarraCuda over the FireCuda? the FireCuda has more cache.

Andrew Hancock i'ts $15 differents so would go for the better one
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
We would select the SSHD 7200 RPM SATA 6Gb/s 64MB Cache

If the question is which is the best SATA hard drive on the market based on a $75, then that is a very different question, to what has been asked!
Tom CieslikIT EngineerCommented:
I did not  recommend Baracuda over Firecuda,, I said that WD Black 6TB is faster that FireCuda
Tom CieslikIT EngineerCommented:
Firecuda hat average transfer rate 190MBps

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WD Black series 6TB has 227 MBps

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arnoldCommented:
What options do you have?
Hardware, using RERAIL versions


buying large drives and placing a significant portion of VMs on a single drive...

combining several drives in a RAID 6 or 10 may provide better performance resource distribution, ......

Depending what the data the testing lab needs to provide, simple proof of concept or some predictive performance .........
proof of concept, might be enough on a single drive. performance analysis on a single drive is not ...
Abraham DeutschIT professionalAuthor Commented:
Tom I find this interesting since according to seagate SSHD is faster then the tredinitional HDD SATA hard drives.

https://www.seagate.com/solutions/solid-state-hybrid/
https://smile.amazon.com/gp/product/B01LNJBA2I/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1
arnoldCommented:
SSHD has a front small SSD and the remaining stadard HD
i.e. 128GB SSD on the front and a 1TB as an example.

The logic is supposed to front load regularly accessed data on the SSD i.e. the OS ..
for your purposes it might not be beneficial......
Tom CieslikIT EngineerCommented:
I know this technology and it seem like fast adaptation of SSD into HD, but why average transfer rate is slower ?
I don't understand, Maybe if you going to use small amount of data that system is going to read and write constantly and is going to operate on SSD part of disk then you'll see this work faster, but it looks like rest of SSHD is working much slower, and fact that average data transfer is 190 when we know that SSD average data transfer is  around 550-600 is proofing theory, that rest of regular HD is working much much slower.

You can decide for yourself but if there is going to be a lot of data involved I think this is not so fast disk.
Gerald ConnollyCommented:
So why is an SSD not an option?
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Cost?
Abraham DeutschIT professionalAuthor Commented:
Yes. Need a TB what Tom is suggesting is $44
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
for a VMware testing lab with that many VMs, I would not recommend SATA spinning rust.

Be creative with VM disk size, and use a 256GB SSD.
Abraham DeutschIT professionalAuthor Commented:
Thank you
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