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virtualesxer
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HyperDrive 5 and 'Fixed Direct Access SCSI-2 device'

Fellow ESX-ers,

I'm thinking of buying a very fast RAM-drive, the 'HyperDrive5', at:

http://www.hyperossystems.co.uk/

It's fully SATAII compatible (and therefore should be recognized by my E200 just fine). Question is, will the ESX 3.5 virtualization as SCSI disc slow down matters too much? My server lists the current disc as:

da0: Fixed Direct Access SCSI-2 device

da0: 320.000MB/s transfers (160.000MHz, offset 127, 16bit), \

Tagged Queueing Enabled

So, when buying the RAM drive, will Vmware's 'Fixed Direct Access SCSI-2 device' be the bottleneck? Or will it scale up, in speed, according to the new (much faster) psycical characteristics of the RAM drive?

Thanks,

- Mark

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Texiwill
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Hello,

If it works great, but SAS, SATA, SCSI, and RAM disks all have different performance characteristics. One will not change the other. The controller will be your limiting factor.


Best regards,
Edward L. Haletky
VMware Communities User Moderator, VMware vExpert 2009
====
Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.
Blue Gears and SearchVMware Pro Blogs -- Top Virtualization Security Links -- Virtualization Security Round Table Podcast

--
Edward L. Haletky
vExpert XIV: 2009-2023,
VMTN Community Moderator
vSphere Upgrade Saga: https://www.astroarch.com/blogs
GitHub Repo: https://github.com/Texiwill

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virtualesxer
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Anyone? Anyone? Bueller? Bueller?

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Texiwill
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Hello,

If it works great, but SAS, SATA, SCSI, and RAM disks all have different performance characteristics. One will not change the other. The controller will be your limiting factor.


Best regards,
Edward L. Haletky
VMware Communities User Moderator, VMware vExpert 2009
====
Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.
Blue Gears and SearchVMware Pro Blogs -- Top Virtualization Security Links -- Virtualization Security Round Table Podcast

--
Edward L. Haletky
vExpert XIV: 2009-2023,
VMTN Community Moderator
vSphere Upgrade Saga: https://www.astroarch.com/blogs
GitHub Repo: https://github.com/Texiwill
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virtualesxer
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Thanks!

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