lenovo_vsan_introduction

1、VMware Virtual SAN,LenovoSoftware Defined Storage,What is a VSANDifferences and benefits from a traditional SANVSAN Lenovo productsHow to build a valid configurationCertification rulesContacts and tools,2015 LENOVO

2、 INTERNAL. All rights reserved.,Agenda,What is a VMware Virtual SAN ?,VMware Virtual SAN is a new software-defined storage tier for VMware vSphere. By clustering server HDDs and SSDs, Virtual SAN creates a flash-optimiz

3、ed, highly resilient shared datastore designed for virtual environments.,2015 LENOVO INTERNAL. All rights reserved.,Hypervisor-Converged Pool,Leveraging the hypervisor to transform storage,Traditional SAN,Software-define

4、d Storage,LUN,Array A,LUN,LUN,Array B,LUN,LUN,x86 Servers,vSphere,x86 Servers,x86 Servers,x86 Servers,2015 LENOVO INTERNAL. All rights reserved.,,,,Why Virtual SAN?,Two-click installSingle pane of glassPolicy-driven S

5、elf-tuning Integrated with VMware stack,Radically Simple,Built on high-performance Lenovo® ServersEmbedded in vSphere® kernelFlash-acceleratedUp to 2M IOPs from 32 nodesGranular and linear scaling,Elastic

6、Scalability, High Performance,Lower TCO,Server-side economicsNo large upfront investmentsGrow-as-you-goEasy to operate with powerful automationNo specialized skillsetReliable hardware,2015 LENOVO INTERNAL. All righ

7、ts reserved.,Lenovo VSAN solution – Technology advantages,Built into VMware vSphere KernelBuilt in I/O caching on server-side flashVM-centric, policy based managementRapid provisioning from vSphere Web ClientSelf-tun

8、ing StorageDistributed RAID leveragedServer disks,2015 LENOVO INTERNAL. All rights reserved.,Lenovo VSAN solution – Technology advantages,Integrated with:vSphere ReplicationvCenter Site Recovery ManagervSphere Data

9、ProtectionEMC Avamar,Disaster Recovery Support,2015 LENOVO INTERNAL. All rights reserved.,2015 LENOVO INTERNAL. All rights reserved.,Architecture overview,VMware traditional Cluster Architecture,,Node 1,,Node 2,,Node 3,

10、2015 LENOVO INTERNAL. All rights reserved.,VMware VSAN Cluster Architecture,SSD,,,Node 1,SSD,,,Node 2,SSD,,,Node 3,2015 LENOVO INTERNAL. All rights reserved.,Lenovo VSAN Solution – Disk Group,2015 LENOVO INTERNAL. All ri

11、ghts reserved.,SSD,,Disk Group 01,1TB,1TB,1TB,SSD,,Disk Group 02,2TB,Lenovo VSAN Solution – Usable space,2015 LENOVO INTERNAL. All rights reserved.,SSD,,Disk Group 01,1TB,1TB,1TB,SSD,,Disk Group 02,2TB,SSD are only used

12、for caching30% of the space is for Write buffer70% of the space is for Read cacheOnly HDDs contribute to the total capacity of the clusterAvailable space is also defined by the number of failures to tollerate Examp

13、le:6x 1TB HDD + 4x 2TB HDD = 14 TB usable capacity,Lenovo VSAN Solution – Mirror and striping,2015 LENOVO INTERNAL. All rights reserved.,Add new HDDs into the Disk Group,Lenovo VSAN Solution – Scalability made Easy,SSD,

14、,Disk Group 01,1TB,4TB Volume,6TB Volume,,No downtime!,Add new Disk Groups to the Host,2015 LENOVO INTERNAL. All rights reserved.,,Lenovo VSAN Solution – Scalability made Easy,No downtime!UP TO 32 HOSTS!,Add new Host to

15、 the VMware Cluster,2015 LENOVO INTERNAL. All rights reserved.,VMWARE VSAN,Lenovo VSAN Solution – Scalability made Easy,2015 LENOVO INTERNAL. All rights reserved.,VM,VM,VM,VM,VM,VM,VM,VM,VM,VM,VM,VM,VM,VM,VM,RD650,RD650,

16、RD650,RD650,,RD650,RD650,VM,VM,VM,VM,VM,VM,VM,VM,VM,,,,,,,,,,,,,Grow as you go,Get Lenovo VSAN certified ThinkServer,Install VMware and setup VSAN,Start virtualizing,100%,,,,,,,,Lenovo VSAN Solution – Easy to manage,New

17、Storage Policy, more granularity to achieve needed performanceStorage Policy on VMs and VMDK, not on the full Data Store like before,2015 LENOVO INTERNAL. All rights reserved.,VSAN works on:vSphere Essentials PlusvSph

18、ere StandardvSphere EnterprisevSphere Enterprise PlusBut it DOESN’T work on:vSphere Foundation (that product has been discontinued a couple of years now)vSphere Essentials,VMware VSAN Software Requirements,http://w

19、ww.vmware.com/products/vsphere/compare,2015 LENOVO INTERNAL. All rights reserved.,VMware vCenter Server? 5.5 Update 1Both the Microsoft Windows version of vCenter Server and the VMware vCenter Server ApplianceThree or

20、more vSphere hostsRAID controller must function in one of two modes:Pass-through mode, RAID 0 mode1x HDD per host (for 5.5)1x SSD per host1x ETH 1Gbit per hostMulticast enabled on VSAN network (Layer 2)When exceed

21、ing 512GB of host memory, it is required to install ESXi on magnetic disk. USB flash drives or SD cards are not supported.,2015 LENOVO INTERNAL. All rights reserved.,VMware VSAN Min. Requirements,Max 32 HostsMax 1x SSD

22、and 7x HDD in a Disk GroupMax 5x Disk Group per HostSSD to HDD ratio should be 1:10 in term of capacitySSD is mainly used as Read Cache (70% Read, 30% Write)10Gbps Ethernet connectivity for the Virtual Storage Net

23、workIPv6 is not supported in VSAN 1.0,VMware VSAN Limitations & Recommendations,SSD,,Disk Group,HDD,Based on vSphere 5.5,2015 LENOVO INTERNAL. All rights reserved.,Max 64 HostsAll Flash DatastoreHybrid Datast

24、ore,VMware VSAN Limitations & Recommendations,Based on new vSphere 6,2015 LENOVO INTERNAL. All rights reserved.,RAID 0 instead of pass-throughWhen using RAID-0 instead of pass-through, you must take into considerati

25、on certain operational impacts. When pass-through is used, drives are (in most scenarios) instantly recognized, and there is no need to configure the drives as local/SSD. On top of that, when a RAID-0 set is used, the dr

26、ive is bound to that RAID-0 configuration. This means that the RAID-0 set has a 1:1 relationship with a given drive. If this drive fails and needs to be replaced with a new drive, this relationship is broken and a new RA

27、ID-0 set with a new drive must be manually created. The effort involved will differ per RAID controller used, whereas with a drive in pass-through mode, replacing the drive is a matter of removing and inserting.Performa

28、nce and RAID Caching VMware has carried out many performance tests using various types of disk controllers and RAID controllers. In most cases, the performance difference between pass-through and RAID-0 configurations wa

29、s negligible. When utilizing RAID-0 configurations, you should disable the storage controllers write cache so as to provide VSAN full control. When the storage controller cache cannot be completely disabled in a RAID-0 c

30、onfiguration, you should configure the storage controller cache for 100% read cache, effectively disabling the write cache.Average HDD performances7,200 RPM SATA: 80 IOPS10,000 RPM SAS: 130 IOPS15,000 RPM SAS: 175 IO

31、PSFailed SSDWhen the flash device fails, the disk group is marked as unhealthy,2015 LENOVO INTERNAL. All rights reserved.,VMware VSAN Limitations & Recommendations,https://vsantco.vmware.com/vsan/SI/SIEV,VMware VSA

32、N Sizing Tool,2015 LENOVO INTERNAL. All rights reserved.,2015 LENOVO INTERNAL. All rights reserved.,VSAN Lenovo products,Which product is VSAN Certified,TodaySystem x3550 M4System x3650 M4Flex System (x240 and Storage

33、 Expansion Node),Near futureSystem x3550 M5System x3650 M5Flex System (x240 M5 and SEN)ThinkServer RD550ThinkServer RD650,,2015 LENOVO INTERNAL. All rights reserved.,Which product is VSAN Certified – Ready Node,VSAN

34、 Ready nodes description example,VSAN Ready Nodes list,2015 LENOVO INTERNAL. All rights reserved.,Which product is VSAN Certified – Customized conf.,Server,RAIDController,SSD,HDD,,Certified VSAN system / compontents,201

35、5 LENOVO INTERNAL. All rights reserved.,Which component is VSAN Certified,VSAN HCL Components Website,2015 LENOVO INTERNAL. All rights reserved.,VMware VSAN – Certified Hardware, RAID & HDD,http://www.vmware.com/reso

36、urces/compatibility/search.php?deviceCategory=vsan,2015 LENOVO INTERNAL. All rights reserved.,VMware VSAN – Certified Hardware, SSD,http://www.vmware.com/resources/compatibility/search.php?deviceCategory=vsan,2015 LENOVO

37、 INTERNAL. All rights reserved.,2015 LENOVO INTERNAL. All rights reserved.,Contacts,2015 LENOVO INTERNAL. All rights reserved.,Who to ask for help on VSAN,EMEA Solutions Team:George Melissargos, Team Manager (English,