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Re: ReadyNAS4312 HyperV VHD over iSCSI or SMB? RR4312

flattened
Apprentice

ReadyNAS4312 HyperV VHD over iSCSI or SMB? RR4312

Hello.

 

We have a new ReadyNAS RR4312.

It has 10*2TB SATAs.

It will be used to hold the VHDX files from a Windows Server 2016 HOST.

The HOST & NAS are connected via 2*10GB SFP+

 

The HOST server has 2*300GB SAS drives, RAID1 and will also have a VHDX for a WIndows 2016 Server SQL server guest.

The VHDX to be stored on the Ready NAS if for the DC/F&P Windows Server 2016 standard.

 

We want best performance for the VHDX stored on the NAS over the 10GB SFP+ to the Server Host (A Fuitsu rack server)

 

iSCSI or SMB? Which would be quicker for VHD access from the Windows HOST?

 

Maybe the NAS storage should be split from the autoconfigured X-RAID (raid 6) to maybe a RAID1 for the VHDX volume to give it more speed, and the remaining 8 disks be reset up as X-RAID (If this is possible?)

 

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StephenB
Guru

Re: ReadyNAS4312 HyperV VHD over iSCSI or SMB? RR4312


@flattened wrote:

 

Maybe the NAS storage should be split from the autoconfigured X-RAID (raid 6) to maybe a RAID1 for the VHDX volume to give it more speed, and the remaining 8 disks be reset up as X-RAID (If this is possible?) 


You can't mix flexraid and xraid.

 

But you can switch to flexraid and create a second volume with the remaining 8 disks.  There are some other raid modes available that you could explore (RAID10 and RAID50), which should give better performance than RAID-6.  They would have higher overhead though.

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flattened
Apprentice

Re: ReadyNAS4312 HyperV VHD over iSCSI or SMB? RR4312

Hi Stephen,

 

Thanks for your reply it is always good to hear from you.

I'd taken then plunge already regrading the NAS RAIDs

1* RAID 1 (2 disks) - I'll iSCSI this one and use an iSCSI initiator on the Hyper-V host.

1* RAID 5 (7 disks)

1*Global Hot spare.

 

It also seems I need to use iSCSI between the Windows HOST and the NAS for VHD storing in this scenario too as SMB is not available to Hyper-V directly to the NAS share. The only SMB shares allowed are those that are shared out from another separate Windows Server with shared storage configured.

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