vi vsan profile

Transcript

1 The purpose of this document is to provide sample server configurations as directional guidelines for use with VMware vSAN™. Use these guidelines as your first step toward determining the configuration for vSAN. How to use this document ? Determine your workload profile requirement for your use case 1. 2. Refer to vSAN ReadyNode profiles to determine the approximate configuration that meets your needs 3. Use vSAN Hardware Compatibility Guide to pick a vSAN ReadyNode aligned with the selected profile from the OEM server vendor of choice 4. Refer to blog What you can and cannot change in ReadyNode vSAN All Flash Hardware Guidance AF-8 Series AF-6 Series AF-4 Series Raw Storage Capacity per Node 12 TB 8 TB 4 TB CPU Cores 24 core 24 core 20 core 384 GB Memory 128 GB 256 GB *4 TB (Minimum 2 drives in each disk group) *12 TB (Minimum 3 drives in each disk group) *8 TB (Minimum 3 drives in each disk group) Capacity Tier Flash *SSD Endurance Class A or above *SSD Endurance Class A or above *SSD Endurance Class A or above *SSD Performance Class C or above *SSD Performance Class C or above *SSD Performance Class C or above *2x400 GB *2x200 GB *1x200 GB *SSD Endurance Class C or above *SSD Endurance Class D or above *SSD Endurance Class C or above Caching Tier Flash *SSD Performance Class D or above *SSD Performance Class E or above *SSD Performance Class C or above IO Controller Queue Depth >= 512 Queue Depth >=512 Queue Depth >= 256 10 GbE or more 10 GbE or more NIC 10 GbE or more Copyright © 2010-2017 VMware, Inc. All rights reserved. 1 / 8

2 vSAN Hybrid Hardware Guidance HY-6 Series HY-4 Series HY-2 Series HY-8 Series Raw Storage Capacity per Node 12 TB 8 TB 4 TB 2 TB CPU Cores 24 core 20 core 16 core 6 core Memory 384 GB 256 GB 128 GB 32 GB *8 TB (Minimum 3 drives in each disk *2 TB (Minimum 2 drives in each disk *12 TB (Minimum 3 drives in each disk *4 TB (Minimum 2 drives in each disk group) group) Capacity Tier Disk group) group) *SAS 10K RPM *NL-SAS 7.2K RPM *NL-SAS 7.2K RPM *NL-SAS 7.2K RPM *1x200 GB *2x400 GB *1x200 GB *2x200 GB *SSD Endurance Class >=B *SSD Endurance Class >=D *SSD Endurance Class >=C Caching Tier Flash *SSD Endurance Class >=C *SSD Performance Class >=D *SSD Performance Class >=E *SSD Performance Class >=D *SSD Performance Class >=B IO Controller Queue Depth >= 512 Queue Depth >= 256 Queue Depth >=256 Queue Depth >=256 10 GbE 10 GbE NIC 10 GbE 10 GbE Copyright © 2010-2017 VMware, Inc. All rights reserved. 2 / 8

3 vSAN Edge Hardware Guidance SF-AF SF-HY 0.6 TB 0.6 TB Raw Storage Capacity per Node Total CPU Cores 6 core 6 core Memory 32 GB 32 GB *600 GB (Minimum 1 capacity drive in each disk group) *600 GB (Minimum 1 capacity drive in each disk group) *Performance Class C or above Capacity Tier *NL-SAS 7.2KRPM *Endurance Class A or above *1x350 GB (Minimum 1 capacity drive in each disk group) *1x350 GB (Minimum 1 capacity drive in each disk group) *Performance Class C or above Caching Tier Flash *Performance Class B or above *Endurance Class C or above *Endurance Class B or above IO Controller Queue Depth >= 256 Queue Depth >= 256 10 GbE or more 10 GbE or more NIC Copyright © 2010-2017 VMware, Inc. All rights reserved. 3 / 8

4 Sizing Assumptions Used For vSAN ReadyNode Profiles *Disk Group Ratio: 1 SSD, 1 to 7 HDDs *>=10% anticipated used capacity Disk Group Caching Tier to Capacity Tier Ratio * For all flash caching guideline, refer the blog here *Min. 4GB (USB/SD Card) (Recommended: 8 GB) *Min. 1 Dedicated SSD/HDD (Boot device needs to be in a separate controller than vSAN Datastore controller) ESXi Boot *Min. 30GB SATADOM with endurance of 512-1024 TBW sequential *Min. 30GB M.2 SSD with min. endurance of 130 TBW (Recommended: mirrored M.2 SSD connected to on-board AHCI controller) *Minimum two server side network adapter uplinks Network *(Dual port NIC) recommended for redundancy *SAS Expanders are supported only on a per platform basis. Check Ready Node listings for SAS Expanders support. In absence of SAS expander support for a Ready Node, only 8 drives supported per controller. Add an extra controller if >8 drives are required. *The capacity point for caching and capacity tier is for guidance only. You can choose different capacity points as long as Performance Device Capacity and Endurance classes are met. Copyright © 2010-2017 VMware, Inc. All rights reserved. 4 / 8

5 Design Considerations Used For vSAN ReadyNode Profiles *Controller queue depth impacts the rebuild/resync times. A low controller queue depth may impact the availability of your production VMs during rebuild/resync. A minimum queue depth of 256 is required in vSAN. Some profiles require minimum queue depth of 512 as noted Controller Queue Depth above. *The number of disk groups impacts fault isolation as well as rebuild/resync times. ***Fault isolation: Configuring more than 1 disk group allows better tolerance against SSD failures since data is spread across more disk Number of disk groups groups. ***Rebuild/resync times: Configuring more than 1 disk group allows faster rebuilds/resyncs. *The number of capacity tier drives in a disk group has an impact of the performance of vSAN. While a single capacity tier drive is the Number of capacity drives (HDDs in Hybrid config / SSD minimum requirement for a disk group, for better performance when there are more VMs, and better handling of rebuild/resync activities, in All Flash Configs) in a disk group we recommend configuring more than 1 capacity tier drive per caching tier SSD per our guidance above. Class of SSDs *The class of SSD you choose has a direct impact on the performance of your overall system. *An unbalanced cluster can impact vSAN performance as well as the rebuild/resync times. A balanced cluster delivers more predictable Balanced vs Unbalanced cluster performance even during hardware failures. In addition, performance impact during resync/rebuild is minimal when the cluster is balanced. *The choice of 1G vs 10G Ethernet has an impact of the vSAN performance. Both 1G and 10G networks are supported. For larger, higher 1G vs 10G Ethernet performing workloads, 10G interconnect is recommended. De-duplication, Compression and Erasure Coding *The sizing does not account for De-duplication, Compression and Erasure Coding. Please visit vSAN Sizing Calculator. If you want to Considerations size with storage efficiency turned on and then pick the right Ready Node profile. Device Protocol *The ReadyNode are certified with particular device type (SAS/SATA/NVMe/HDD). You are not allowed to change the device type. Copyright © 2010-2017 VMware, Inc. All rights reserved. 5 / 8

6 Performance Classes for SSDs WRITES PER SECOND SSD PERFORMANCE CLASS B 5000 - 10000 C 10000 - 20000 D 20000 - 30000 E 30000 - 100000 F 100000+ Endurance Classes for SSDs SSD ENDURANCE CLASS TB WRITES IN 5 YEARS SSD TIER A vSAN All Flash - Capacity 365 B vSAN Hybrid - Caching 1825 C vSAN All Flash - Caching for Medium workloads 3650 7300 vSAN All Flash - Caching for High workloads D Copyright © 2010-2017 VMware, Inc. All rights reserved. 6 / 8

7 OLD PROFILE NAME NEW PROFILE NAME Hybrid-Server-Low HY-2 Series New Hybrid Profile HY-4 Series Hybrid-Server-Medium HY-6 Series Hybrid-Server-High HY-8 Series Hybrid-VDI-Linked Clones HY-8 Series Hybrid-VDI-Full Clones HY-8 Series AF-6 Series All Flash-Server-Medium All Flash-Server-High AF-8 Series All Flash-VDI-Linked Clones AF-8 Series All Flash-VDI-Full Clones AF-8 Series Additional Resources vSAN Ready Node Configurator vSAN ReadyNode™ Sizer HCI Assessment Tool Copyright © 2010-2017 VMware, Inc. All rights reserved. 7 / 8

8 Disclaimer VMware, Inc. 3401 Hillview Avenue Palo Alto CA 94304 USA Tel 877-486-9273 Fax 650-427-5001 www.vmware.com . Copyright © 2016 VMware, Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. VMware products are covered by one or more patents listed at http://www.vmware.com/go/patents . VMware is a registered trademark or trademark of VMware, Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies. Item No: VMW6051-QRG-VSAN-USLET-110. Copyright © 2010-2017 VMware, Inc. All rights reserved. 8 / 8

Related documents