salva72

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salva72

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August 18th, 2019 15:00

Area51m with 2 raid 0 NVME best app for hard disk creation ?

Hello, Until my previous Alienware I was using Acronis to backup the image of my SSD in NVME but now I have 2 in RAID 0 , after trying to boot from a Hiren pen drive , I run Acronis and it did not detect the RAID 0 SSDs. I wonder what application are you using in this case configuration ( except Alienrespawn ). Thanks for your help in advance. Salvador
  • jphughan

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    Posted August 18th, 2019 22:00

    Your bootable image capture environment probably needs a newer version of the Intel Rapid Storage driver.  I've never used Acronis before, but I would imagine it offers some way to inject drivers into the bootable media it builds for exactly this type of use case.  I personally use Macrium Reflect, which has a free version if you want to use it, and its Rescue Media Builder application definitely allows you to add drivers, although by default it will copy necessary drivers right out of your Windows environment into its Rescue Media build.

    Out of curiosity, have you benchmarked your RAID 0 setup?  The reason I ask is that a single modern NVMe SSD can basically max out a PCIe x4 interface on its own, and even though both M.2 slots in that system have an x4 interface available, typically systems with dual M.2 slots are wired to a PCIe switch that only has an x4 interface back to the chipset rather than an x8 interface, because the chipset only has a certain number of PCIe lanes available to be allocated across the entire system.  If your system as that setup, then either NVMe SSD would be able to use the full x4 bandwidth, but the total bandwidth across both SSDs will still only be x4, not x8.  In that case, you'd get little to no performance benefit from running a RAID 0.

  • salva72

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    Posted August 19th, 2019 15:00

    Hello I will review the application you mention. On the RAID 0 configuration thanks for the information. It was one of the configuration offered by Dell when I bought it, it was cheaper and thought it was faster... but now I dont know. I have benchmarked once and the total output was 3200 Megabytes/second. I dont remember the application used, but if you have one free in mind I can test it.
  • salva72

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    Posted August 19th, 2019 15:00

    I have just run CrystalDiskMark and gives the following result :

     

    velocidad SSD.PNG

  • jphughan

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    Posted August 19th, 2019 15:00

    @salva72  CrystalDiskMark is a free and popular storage benchmarking application.  You'll want to look at the sequential read and write figures, which are the ones displayed in the top row of the application.  I'm not sure exactly what SSDs you have in your system, but modern higher-end NVMe SSDs like the Samsung 960 and 970 models can hit 3200 MB/s all on their own.  So if you have two SSDs of that caliber, it sounds like RAID 0 isn't really getting you anything performance-wise, although you do still get to use two physical SSDs as a single logical disk if you prefer that setup over having separate drives.  If on the other hand you have lower-end SSDs that might not be able to hit those figures on their own, then RAID 0 is helping.

  • salva72

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    Posted August 19th, 2019 16:00

    After those results, I was thinking that my system is now just this RAID 0 for half Giga and nothing else, maybe it make sense to change this an upgrade to 1 Tbyte SSD with this kind of speed and don't buy a SATA SSD...as extra storage.

  • jphughan

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    Posted August 19th, 2019 18:00

    @salva72  unfortunately screenshots are initially only visible to the person who posted them and to Dell forum admins until the admins "approve" them.  As of right now, I can't see the CrystalDiskMark results.  In terms of your follow-up post, I'm not sure what you mean by "RAID 0 for half Giga".  But if your RAID 0 isn't getting you increased performance, then yes you could replace the two existing NVMe SSDs with a single NVMe SSD that has double the capacity without losing performance -- and then you would still have an extra M.2 slot available for additional storage if desired.  However, that plan would involve removing both of your existing NVMe SSDs, so hopefully you would be able to sell them, because they would still be worth some money, so it would be unfortunate to waste them.