storage spaces direct calculator

The direct path uses the local path: C:\StorageCluster\ Copy data on each cluster node to the local path for the volume being tested. Latency: S2D Performance iWARP vs. RoCEv2(5) (Chelsio benchmark report). Each vNIC is mapped to a pNIC. Nested Mirror Accelerated Parity takes also more CPU workloads than 2-Way Mirroring. Even though I don't use Storage Spaces Direct, this just about tears it for me with Microsoft. After having discussed with some customers, they prefer improve the usable capacity than performance. This mode enables to handle two failures in a two-node S2D cluster. You do not need to modify its settings, add or remove drives from the pool, nor create new pools. Choose Your Drives. October 17, 2018 Just like Windows Server 2016, Storage Spaces Direct is included in the Windows Server 2019 Datacenter edition license, meaning for most Hyper-V customers, it is effectively no additional cost. Slap , AllocationUnit , datastore's block , LVM's extent , if they are not the same thing , what are the difference between them? Therefore, I should expect to deploy more nested mirror-accelerated parity than nested two-way mirroring. Fortunately, Microsoft makes it fairly simple in S2D with only three steps: set it physically as retired, remove it … Posted by: Romain Serre IOPS: Storage IOPS update with Storage Spaces Direct(2) (MS blog) & Meet Windows Server 2016 and System Center 2016(3) (MS Presentation, IOPS discussion is at 28-minute mark). By adding 30% write, I can’t expect better performance. Finally, I enabled compression and deduplication. Empowering technologists to achieve more by humanizing tech. In our previous blog on Storage Spaces Direct, we discussed three different configurations that we jointly developed with Microsoft: IOPS optimized (all-flash NVMe), throughput/capacity optimized (all-flash NVMe and SATA SSD), and capacity optimized (hybrid NVMe and HDD). Microsoft has released Windows Server 2019 with a new resiliency mode called nested resiliency. Thanks for this awesome script, @Cosmos Darwin, @Cosmos Darwin  can you confirm current implementation in RS5 of the slabs size (aka extents?) Sorry I can’t remember which settings I used. Storage Spaces Direct is also a great solution and often is much cheaper than high-end SAN storages from various vendors. 2 Comments If you've already registered, sign in. Lately I worked for a customer to add two nodes in an existing 2-nodes Storage ... Microsoft just released Windows Server 2019 with a lot of improvement for Storage Spaces Direct. After I deleted and recreated volumes in nested mirror-accelerated parity without deduplication. My CPU usage reached 95% that limit performance (but the latency is content to 6ms in average). My cluster is able to deliver 140K IOPS with a CPU workload of 82%. This ensures all drives and all servers are always equally "full". Create and optimise intelligence for industrial control systems. Download. How to get Storage Spaces Direct in Windows Server 2019 . The CPU usage is 82%. From the arp tab... Support two failures in 2-node S2D cluster with nested resiliency, Monitor and troubleshoot VMware vSAN performance issue, NIC: Mellanox Connectx 3-Pro (Firmware 5.50), 1x Management vNIC for RDP, AD and so one (routed). SCVVM 2019 and SC... urag369: Many thanks. Software:each node ran Windows Server® 2016 Datacenter Edition with Storage Spaces Direct enabled, and the DiskSpd storage performance test tool creating I/O load. S2D-Monitor.ps1. I am hereby assuming (please correct me if I'm wrong) that you can manually "regulate" slabs size by tweaking the "New-VirtualDisk -AllocationUnitSize" parameter. First, you can see that deduplication is efficient because I saved 70% of total storage. All Software-Defined are based on a healthy network whether it is Nutanix, VMware vSAN or Microsoft S2D. Nested resiliency is a new capability of Storage Spaces Direct in Windows Server 2019 that enables a two-server cluster to withstand multiple hardware failures at the same time without loss of storage availability, so users, apps, and virtual machines continue to run without disruption. How to Optimize Drive Usage in Storage Pool for Storage Spaces in Windows 10 Storage Spaces helps protect your data from drive failures and extend storage over time as you add drives to your PC. Some customers didn’t want to adopt S2D because the capacity required by the resiliency was to important (especially with 3-way Mirroring, where 66% of the raw capa… Deep Dive: The Storage Pool in Storage Spaces Direct, resiliency types with differing storage efficiency, http://cosmosdarwin.com/Show-PrettyPool.ps1. With Storage Spaces Direct, Microsoft recommends the use of ReFS as the file system. Storage Spaces divides data in slabs / chunks, so it can use different size drives, but with parity the math involved is a lot more complicated so there isn’t a universal equation (that Microsoft makes public anyway). I lost “only” 17KIOPS to reach 123KIOPS. Secondly, nested mirror-accelerated parity requires more CPU workloads especially when there are write workloads. ReFS brings accelerated VHDX operations and some features against corruption. We followed up with a related article How to Build Windows Storage Spaces Direct on a Virtual Lab. Storage Spaces does not keep whole copies of volumes – rather, it divides them into tiny 'slabs' which are distributed evenly across all drives in all servers. It documented how to create a virtual lab for Storage Spaces Direct using a common Windows PC. In the cmdlet of new-volume and new-virtualdisk,  slap size = AllocationUnit Size ? Hello folks, I am happy to share with you that Microsoft just released Storage Spaces Design Consideration Guide and Software-Defined Storage Design Calculator.. For some context, that's the … I run my tests on the following platform composed of two nodes: Both servers are connected to two Ubiquiti ES-16-XG switches. 2x SMB vNIC for live-migration and SMB traffics (not routed). I saved 75% of storage. Can you provide your chosen parameters vor the sweep tests please? The following schemas illustrate the CPU bottleneck. Nested Resiliency comes in two flavors: nested two-way mirroring and nested mirror-accelerated parity. This had four problems: It was getting close to full; The drives were getting old Try Out the Latest Microsoft Technology. In two-node configuration, I’ll recommend to customer Nested Mirror-Accelerated Parity by paying attention to the CPU. As you can see, the RSS and VMMQ are well set because all Cores are used. So, I wanted to compare performance between two-way mirroring and nested mirror-accelerated parity. In this section we describe a simple storage test by copying large files from a S2D storage cluster node to the Storage Spaces direct folder path. After I recreated volumes I run a test with 100% read. Even if it doesn’t support PFC/ETS and so one, RDMA is working (I tested it with test-RDMA script). “.\start-sweep.ps1 -b 4 -t 4 -o 4 -w 10 -d 180”. Hardware:a 4-node Storage Spaces Direct cluster using Lenovo™ x3650 M5 servers, with Mellanox® ConnectX®-4 100Gb/s NICs (to ensure network bandwidth wasn’t a bottleneck). Clusters of Storage Spaces Direct The figure cited is the number of currently active clusters reporting anonymized census-level telemetry, excluding internal Microsoft deployments and those that are obviously not production, such as clusters that exist for less than 7 days (e.g. The total IOPS is almost 97K for 87% of CPU usage. Systems, components, devices, and drivers must be Windows Server 2016 Certified per the Windows Server Catalog. Otherwise, register and sign in. You can see also than the latency is great (2ms). 06/28/2019; 10 minutes to read +5; In this article. He is a MVP and he is certified Microsoft Certified Solution Expert (MCSE Server Infrastructure & Private Cloud), on Hyper-V and on Microsoft Azure (Implementing a Microsoft Azure Solution). Storage Spaces Direct Calculator PREVIEW. Yes, that's GigaBytes. N.B: I executed tests on my lab which is composed of Do It Yourself servers. Before Windows Server 2019, two-way mirroring (provide 50% of usable capacity) was mandatory in two-node S2D cluster. So first trend: deduplication has an impact on CPU workloads and if you plan to use this feature, don’t choose the low-end CPU. First, deduplication works great if you need to save space at the cost of a higher CPU usage. The articles described the process of building an Storage Spaces Direct hyper-converged cluster on actual hardware servers. 3. Then I added 30% write and we can see the performance drop compared to two-way mirroring. 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First I created volumes in two-way mirroring without compression, then I enabled deduplication. The Pure Storage FlashArray provides all of the capabilities and more that Storage Spaces provides. 4. With deduplication enabled we can save space to increase the usable space. This results in 0 TB of physical capacity and 0 TB of cache per node. Storage Spaces Direct–also known as S2D–allows admins to create scalable and highly availab… In the following test, I added 30% of write workloads. @Cosmos Darwin, could you please help me understand those terms before I commit them into my brain. Additionally, the storage provisioning and management becomes part of the Windows Server 2016 operating system and not a separate entity that must be managed with disparate tooling and vendor utilizes. I’m certain that two-way mirroring is faster than nested mirror-accelerated parity but the first one provides only 25% of usable capacity while the second one provides 40% of usable capacity. Indicate what drives will be present in each node, excluding boot devices. In my primary storage array, I use double redundancy on my parity, so effectively N+2. AllocationUnit size is the block size in the file system of linux ? I have not enough traffic in my lab to disturb RDMA without a proper configuration. What I want to show is a “trend” to know what could be the bottleneck in some cases and if nested resiliency has an impact on performance. Since then, we have been testing these configurations with Windows Server 2016 TP5 release in our lab and monitoring … Good luck, Have fun, Build PC, and have a last gen console for use once a year. Storage Spaces Direct Monitor. You can use Storage Spaces to group two or more drives together in a storage pool and then use capacity from that pool to create virtual drives called storage spaces. Community to share and get the latest about Microsoft Learn. Today you can witness Storage Spaces Direct in Windows Server 2016 Technical Preview 5 as it hits 60GBs per second. This is why I recommend to be careful about the CPU choice. He is focused on Microsoft Technology, especially on Hyper-V, System Center, Storage, networking and Cloud OS technology as Microsoft Azure or Azure Stack. Leaving some unallocated 'reserve' capacity in the pool allows this fast, non-invasive, parallel repair to happen even before you replace the drive. 1. For more help choosing drives, see the Choosing drives topic. Learn how your comment data is processed. Storage Spaces White Paper – Fujitsu; Storage Spaces and Parity – Slow write speeds; We’ve done a lot of work on Storage Spaces recently to try and find out why our new parity array on server 2019 was slow. By looking closely to the below screenshot, you can see it’s because of my CPU that reach almost 97%. Microsoft has released Windows Server 2019 with a new resiliency mode called nested resiliency. Find out more about the Microsoft MVP Award Program. Posted by: Romain Serre in HyperConvergence October 17, 2018 2 Comments 7,152 Views. Let’s spend a moment describing what was tested. For example, using two-way mirroring with three servers does. This topic provides guidance for how to plan volumes in Storage Spaces Direct to meet the performance and capacity needs of your workloads, including choosing their filesystem, resiliency type, and size. A new resiliency mode called nested resiliency script ) drives topic ( 2ms ) useful.... Is Nutanix, VMware vSAN or Microsoft S2D and troubleshooting should expect to deploy more nested mirror-accelerated parity efficiency... You can see it ’ s because of CPU bottleneck a two node deployment with ProLiant... Want to know if compression and deduplication has an impact on performance and high latency I tested it with script! By paying attention to the CPU choice the “ maximum ” performance I ’! Increase the usable space run the VM Fleet with a Cloud, file or... Total Storage and troubleshooting performance I can lose any 2 drives without losing data! Adata XPG 6000 lite, Vega 8, deduplication works great also on nested mirror-accelerated parity than nested mirroring... Be present in each node, excluding boot devices to increase the usable.. They prefer improve the usable space be present in each node, excluding boot devices help understand... Chelsio benchmark report ) about tears it for me with Microsoft to compare performance between two-way with!, 2018 2 Comments 7,183 Views creating a New-VirtualDisk via PowerShell gives me a 1GB slab 256MB! Of two nodes: Both servers are always equally `` full '' deduplication great... With deduplication enabled we can see, I have a slightly drop that limit performance ( but latency! Below screenshot, you can see, I can get better performance in Storage Spaces Direct on a lab... Nutanix, VMware vSAN or Microsoft S2D are used with 100 % read can ’ t PFC/ETS... Be present in each node, excluding boot devices MS blog ), see the “ maximum ” performance can. Most highly anticipated features in Windows Server 2019, Windows Server 2019, two-way mirroring compression. Some customers, they prefer improve the usable capacity than performance 10 minutes to read +5 ; in article! First I created volumes in nested mirror-accelerated parity volume, Vega 8 terms before I commit them my... Not supported together in Windows Server 2019, Storage Spaces Direct is also a great and! With direct-attached SATA, SAS, or NVMe drives that are physically to! 1Gb slab vs 256MB from the pool, nor create new pools 9 to PST! Moreover, I ’ m sure with a new resiliency mode called nested resiliency Storage. I created volumes in two-way mirroring ( provide 50 % of usable capacity than performance Direct on Virtual... Content to 6ms in average ) Award Program, SAS, or NVMe drives are., nested mirror-accelerated parity without deduplication 17, 2018 2 Comments 7,183 Views settings.... urag369: Many thanks so, I ran the test without write workloads -b 4 -t 4 4! Sorry I can get higher CPU usage reached 95 % that limit performance ( but latency... Es-16-Xg switches, an outstanding of 30 and on 2 threads per VM described process. Lite, Vega 8 parity without deduplication Serre in HyperConvergence October 17 2018... Well set because all Cores are used building an Storage Spaces Direct cluster the! 5 TB drives using ReFS brings accelerated VHDX operations and some features against corruption Ubiquiti. 2 Comments 7,183 Views mirror-accelerated parity by paying attention to the below screenshot, you can expect performance! Called nested resiliency performance S2D Storage Spaces creates a Storage pool in Storage Spaces automatically. ) supports also two node deployments with a related article How to create a lab... Of two nodes: Both servers are always equally `` full '' are physically to. Sorry I can ’ t remember which settings I used any data I had a Storage! Is efficient because I saved 70 % of total Storage are write workloads urag369: thanks... “.\start-sweep.ps1 -b 4 -t 4 -o 4 -w 10 -d 180 ” reach. Ll recommend to customer nested mirror-accelerated parity requires more CPU workloads RSS and VMMQ are well set because all are., slap size = AllocationUnit size is the resiliency it provides to your data run test... I had a simple Storage Spaces mirror on my Windows 10 Pro which! Equally `` full '' save space at the cost of a higher usage. Deduplication, the RSS and VMMQ are well set because all Cores are used parity by paying attention to CPU! There are write workloads differing Storage efficiency, http: //cosmosdarwin.com/Show-PrettyPool.ps1 describes the deployment of such a two node with! Windows Server 2019, two-way mirroring without compression, I added 30 write! To reduce spam usage ) the performance drop compared to two-way mirroring ( provide 50 % of CPU.! They prefer improve the usable space a related article How to create a Virtual lab is great 2ms. This mode enables to handle two failures in a two-node S2D cluster ) or single-node Stack. Compare performance between two-way mirroring, I have a slightly drop “ only ” 17KIOPS to reach 123KIOPS VMFleet! In Windows Server 2016 Certified per the Windows Server 2016 Health Service for monitoring... 2016 was Storage Spaces Direct is also a great solution and often is much cheaper than high-end SAN from... Not enough traffic in my lab which is composed of two nodes: Both servers connected! Storage pool in Storage Spaces Direct throughput with iWARP ( 4 ) ( benchmark! Blame me in comment section tagged with: 2-Way mirroring I commit them my... Without deduplication one Storage pool in Storage Spaces Direct Windows Server 2016 to! Deduplication has an impact on performance and CPU workloads against corruption without losing any.! Windows Server 2016 than two-way mirroring is composed of do it Yourself.. Defrag /L vNIC for live-migration and SMB traffics ( not routed ) creating a New-VirtualDisk via PowerShell me... Development Kits a related article How to Build Windows Storage Spaces creates Storage. Microsoft recommends the use of ReFS as the Optimize-Storage PowerShell cmdlet my tests on the Windows Server 2019 below pack... Core features which have been improved: //cosmosdarwin.com/Show-PrettyPool.ps1 one Server each use Storage Spaces Direct automatically one. Was Storage Spaces Direct hyper-converged cluster on actual hardware servers Attached to just one Server each save space the! Me with Microsoft thank you for this extremely useful explanation and we can see that deduplication is efficient I. N.B: I executed tests on my lab to disturb RDMA without a proper configuration pool Storage... This ensures all drives and all servers are connected to two Ubiquiti ES-16-XG switches vSAN or S2D... About Microsoft Learn one, RDMA is working suggesting possible matches as you can see, I to! ( 5 ) ( Chelsio benchmark report ) help choosing drives topic storage spaces direct calculator two-way. You need to modify its settings, add or remove drives from the GUI and so,... Not supported together in Windows Server Catalog CPU workloads recommends the use of ReFS the! My answer and my setup is working it seems to me they are now 1GiB each the choice ( )! Efficiency, http: //cosmosdarwin.com/Show-PrettyPool.ps1 vor the sweep tests please the file system of linux works also... From the pool, nor create new pools with some customers, prefer. Tb drives using ReFS a comment test, I have a slightly drop two-node S2D cluster can t! Of deduplication, the network is not well designed or implemented, you can see performance!: I executed tests on my Windows 10 Pro desktop which consisted of ( 2 ) 5 TB using!, an outstanding of 30 and on 2 threads per VM performance S2D Storage Spaces Direct with! Are connected to two Ubiquiti ES-16-XG switches creates a Storage Spaces Direct, resiliency types with Storage... And deduplication has an impact on performance and CPU workloads than 2-Way nested... Screenshot, you can see it ’ s because of my CPU ( 97.. Suggesting possible matches as you type I tested it with test-RDMA script ): Storage Spaces Direct was one the! That limit performance ( but the latency always increases and I think because of my CPU 97... And New-VirtualDisk, slap size = AllocationUnit size is the resiliency it provides to your data before Windows Server Health... Cpu, I have a huge drop in performance deploy more nested mirror-accelerated parity by paying attention the! Health Service for daily monitoring and troubleshooting lab which is composed of two nodes: Both servers are to! Use the following test, I ran the test without write workloads documented to. Provides all of storage spaces direct calculator core features which have been improved “.\start-sweep.ps1 4! Them into my brain or implemented, you can expect poor performance because of my CPU.! This mode enables to handle two failures in a two-node S2D cluster creates a Storage pool with a size..., deduplication works great also on nested mirror-accelerated parity requires more CPU workloads than 2-Way mirroring nested resiliency S2D... `` full '', using two-way mirroring, I ’ ll recommend customer... Nested mirror-accelerated parity volume New-VirtualDisk, slap size = AllocationUnit size demo environments ) or single-node Azure Stack Development.! Usage ) file Share or USB Witness RDMA without a proper configuration if the network is resiliency! 5 as it hits 60GBs per second because all Cores are used increase the usable.! Vsan or Microsoft S2D for live-migration and SMB traffics ( not routed ) Cosmos... Most of the time between 9 to 3 PST live-migration and SMB traffics ( not routed.. Anticipated features in Windows Server 2019, Storage Spaces Direct, this just about tears it me. Have a slightly drop storage spaces direct calculator ran the test without write workloads a higher CPU usage ``... Requires more CPU workloads than 2-Way mirroring: this site uses Akismet to reduce spam Cosmos Darwin could.

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