vSAN性能优化内容PPT课件
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VMware vSAN™ 6.6
产品介绍及Anybackup适配注意事项
© 2017 VMware Inc. All rights reserved.
VMware vSAN
Radically Simple Hypervisor-Converged Storage for VMs
VMware vSphere® + vSAN …
RAID-5
parity data data data
ESXi Host
2021/6/4
data parity data data
ESXi Host
data data parity data
ESXi Host
data data data parity
ESXi Host
5
RAID-6 Inline Erasure Coding
RAID-6
All Flash Host
2021/6/4
parity data data
ESXi Host
data parity data
ESXi Host
data parity data
ESXi Host
data data parity
ESXi Host
• When Number of Failures to Tolerate = 2 • Failure Tolerance Method = Capacity RAID-6
• 4+2 (6 host minimum) • 1.5x instead of 3x overhead
• 20 GB disk consumes 60 GB with RAID-1, now consumes ~30 GB with RAID-6
All hardware must be listed in the VMware Compatibility Guide > vSAN
2021/6/4
7
Flash-Based Devices (cont.)
VMware SSD Performance Classes • Class B: 5,000-10,000 writes per second • Class C: 10,000-20,000 writes per second • Class D: 20,000-30,000 writes per second • Class E: 30,000-100,000 writes per second • Class F: 100,000+ writes per second
vSAN
Persistence
Capacity Tier SAS/NL SAS/SATA/Direct-attached JBOD
Capacity Tier Flash Devices Reads go directly to capacity tier
40K IOPS per Host
90K IOPS per Host
3
vSAN 架构
Hybrid
1.判断架构类型
All-Flash
SSD
PCI-e
Ultra DIMM
Read and Write Cache
Caching
SSD
PCI-e
Ultra DIMM
Writes cached 100%. Reads go directly to capacity tier
Data
vSphere
Today
• VMware vSAN™群集分为两个站点！ • 每个站点都是故障域（FD） • 站点级保护，零数据丢失和近瞬时恢复 • 自动故障转移
2021/6/4
VMware vSphere & vSAN 5ms RTT, 10GbE
• 支持数据站点之间最多5毫秒的RTT延迟 • 10 Gbps带宽 • 需要见证服务器
data data parity
ESXi Host
6
硬件兼容性要求
Any server in the VMware Compatibility Guide
2.判断硬件兼容
驱动、固件兼容 驱动、固件兼容（等级低） 1 Gb/10 Gb NIC，驱动、固件兼容 SAS/SATA controllers (RAID controllers must work in “pass-through” or RAID0” mode) ，驱动、固件兼容 8 GB SD Cards 系统盘
混合环境极有可能存在性能瓶颈，Anybackup备份此类环境需要检查一下是否是混合模式， 2021/6/4 vsan底层默认将缓存区域的70%用于读，30%用于写；热数据自动替换冷数据；缓存最佳实践是 4
数据量的10%
RAID-5 Inline Erasure Coding
All Flash Only
• When Number of Failures to Tolerate = 1 • Failure Tolerance Method = Capacity RAID-5
• 3+1 (4 host minimum) • 1.33x instead of 2x overhead
• 20 GB disk consumes 40 GB with RAID-1, now consumes ~27 GB with RAID-5
performance • Managed through per-VM storage policies • Deeply integrated with the VMware stack
2
vSAN – Stretched Cluster
Active-Active data centers
witness
SSD Hard disks
SSD Hard disks
SSD Hard disks
2021/6/4
vSAN Datastore
Overview
• Software-defined storage optimized for VMs • Hypervisor-converged architecture • Runs on any standard x86 server • Pools HDD/SSD into a shared datastore • Delivers enterprise-level scalability and
产品介绍及Anybackup适配注意事项
© 2017 VMware Inc. All rights reserved.
VMware vSAN
Radically Simple Hypervisor-Converged Storage for VMs
VMware vSphere® + vSAN …
RAID-5
parity data data data
ESXi Host
2021/6/4
data parity data data
ESXi Host
data data parity data
ESXi Host
data data data parity
ESXi Host
5
RAID-6 Inline Erasure Coding
RAID-6
All Flash Host
2021/6/4
parity data data
ESXi Host
data parity data
ESXi Host
data parity data
ESXi Host
data data parity
ESXi Host
• When Number of Failures to Tolerate = 2 • Failure Tolerance Method = Capacity RAID-6
• 4+2 (6 host minimum) • 1.5x instead of 3x overhead
• 20 GB disk consumes 60 GB with RAID-1, now consumes ~30 GB with RAID-6
All hardware must be listed in the VMware Compatibility Guide > vSAN
2021/6/4
7
Flash-Based Devices (cont.)
VMware SSD Performance Classes • Class B: 5,000-10,000 writes per second • Class C: 10,000-20,000 writes per second • Class D: 20,000-30,000 writes per second • Class E: 30,000-100,000 writes per second • Class F: 100,000+ writes per second
vSAN
Persistence
Capacity Tier SAS/NL SAS/SATA/Direct-attached JBOD
Capacity Tier Flash Devices Reads go directly to capacity tier
40K IOPS per Host
90K IOPS per Host
3
vSAN 架构
Hybrid
1.判断架构类型
All-Flash
SSD
PCI-e
Ultra DIMM
Read and Write Cache
Caching
SSD
PCI-e
Ultra DIMM
Writes cached 100%. Reads go directly to capacity tier
Data
vSphere
Today
• VMware vSAN™群集分为两个站点！ • 每个站点都是故障域（FD） • 站点级保护，零数据丢失和近瞬时恢复 • 自动故障转移
2021/6/4
VMware vSphere & vSAN 5ms RTT, 10GbE
• 支持数据站点之间最多5毫秒的RTT延迟 • 10 Gbps带宽 • 需要见证服务器
data data parity
ESXi Host
6
硬件兼容性要求
Any server in the VMware Compatibility Guide
2.判断硬件兼容
驱动、固件兼容 驱动、固件兼容（等级低） 1 Gb/10 Gb NIC，驱动、固件兼容 SAS/SATA controllers (RAID controllers must work in “pass-through” or RAID0” mode) ，驱动、固件兼容 8 GB SD Cards 系统盘
混合环境极有可能存在性能瓶颈，Anybackup备份此类环境需要检查一下是否是混合模式， 2021/6/4 vsan底层默认将缓存区域的70%用于读，30%用于写；热数据自动替换冷数据；缓存最佳实践是 4
数据量的10%
RAID-5 Inline Erasure Coding
All Flash Only
• When Number of Failures to Tolerate = 1 • Failure Tolerance Method = Capacity RAID-5
• 3+1 (4 host minimum) • 1.33x instead of 2x overhead
• 20 GB disk consumes 40 GB with RAID-1, now consumes ~27 GB with RAID-5
performance • Managed through per-VM storage policies • Deeply integrated with the VMware stack
2
vSAN – Stretched Cluster
Active-Active data centers
witness
SSD Hard disks
SSD Hard disks
SSD Hard disks
2021/6/4
vSAN Datastore
Overview
• Software-defined storage optimized for VMs • Hypervisor-converged architecture • Runs on any standard x86 server • Pools HDD/SSD into a shared datastore • Delivers enterprise-level scalability and