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vSAN Typeall-flashall-flashhybrid
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ESXi Host - Attribute Specification
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ComputeCPUNumber of CPUs (sockets) 1
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Number of cores per CPU32
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MHz per CPU core2600MHz
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Total CPU MHz per CPU83200MHz
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Total CPU MHz per host83200MHz
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Max host CPU (MHz & Cores) usage80%
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RAMTotal RAM per host768GB
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Max host RAM usage80%
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Diskgroup 1CachevSAN Cache SSD Disk Capacity1600GB
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vSAN Cache SSD Disk Write Perf (64KB, 100% random)10000IOPSSATA Mixed Used SSD - 1500 IOPS, SAS Mixed Used SSD - 4500 IOPS, SAS Write Intensive SSD - 7000 IOPS, NVMe Mixed Used SSD - 10000 IOPS, NVMe Intel Optane - 37500 IOPS
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vSAN Cache SSD Disk Read Perf (64KB, 100% random)37500IOPSSATA Mixed Used SSD - 5000 IOPS, SAS Mixed Used SSD - 11500 IOPS, SAS Write Intensive SSD - 12500 IOPS, NVMe Mixed Used SSD - 37500 IOPS, NVMe Intel Optane - 37500 IOPS
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CapacityvSAN Capacity Disk Capacity3840GB
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# of vSAN Capacity SSD Disks5
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Single vSAN Capacity Disk Write Perf (64KB, 100% random)1500IOPSSATA Read Intensive SSD - 1500 IOPS, SAS Read Intensive SSD - 2000 IOPS, NVMe Read Intensive SSD - 2500 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Single vSAN Capacity Disk Read Perf (64KB, 100% random)5000IOPSSATA Read Intensive SSD - 5000 IOPS, SAS Read Intensive SSD - 10000 IOPS, NVMe Read Intensive SSD - 30000 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Diskgroup 2CachevSAN Cache SSD Disk CapacityGB
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vSAN Cache SSD Disk Write Perf (64KB, 100% random)IOPSSATA Mixed Used SSD - 1500 IOPS, SAS Mixed Used SSD - 4500 IOPS, SAS Write Intensive SSD - 7000 IOPS, NVMe Mixed Used SSD - 10000 IOPS, NVMe Intel Optane - 37500 IOPS
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vSAN Cache SSD Disk Read Perf (64KB, 100% random)IOPSSATA Mixed Used SSD - 5000 IOPS, SAS Mixed Used SSD - 11500 IOPS, SAS Write Intensive SSD - 12500 IOPS, NVMe Mixed Used SSD - 37500 IOPS, NVMe Intel Optane - 37500 IOPS
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CapacityvSAN Capacity Disk CapacityGB
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# of vSAN Capacity SSD Disks
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Single vSAN Capacity Disk Write Perf (64KB, 100% random)IOPSSATA Read Intensive SSD - 1500 IOPS, SAS Read Intensive SSD - 2000 IOPS, NVMe Read Intensive SSD - 2500 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Single vSAN Capacity Disk Read Perf (64KB, 100% random)IOPSSATA Read Intensive SSD - 5000 IOPS, SAS Read Intensive SSD - 10000 IOPS, NVMe Read Intensive SSD - 30000 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Diskgroup 3CachevSAN Cache SSD Disk CapacityGB
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vSAN Cache SSD Disk Write Perf (64KB, 100% random)IOPSSATA Mixed Used SSD - 1500 IOPS, SAS Mixed Used SSD - 4500 IOPS, SAS Write Intensive SSD - 7000 IOPS, NVMe Mixed Used SSD - 10000 IOPS, NVMe Intel Optane - 37500 IOPS
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vSAN Cache SSD Disk Read Perf (64KB, 100% random)IOPSSATA Mixed Used SSD - 5000 IOPS, SAS Mixed Used SSD - 11500 IOPS, SAS Write Intensive SSD - 12500 IOPS, NVMe Mixed Used SSD - 37500 IOPS, NVMe Intel Optane - 37500 IOPS
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CapacityvSAN Capacity Disk CapacityGB
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# of vSAN Capacity SSD Disks
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Single vSAN Capacity Disk Write Perf (64KB, 100% random)IOPSSATA Read Intensive SSD - 1500 IOPS, SAS Read Intensive SSD - 2000 IOPS, NVMe Read Intensive SSD - 2500 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Single vSAN Capacity Disk Read Perf (64KB, 100% random)IOPSSATA Read Intensive SSD - 5000 IOPS, SAS Read Intensive SSD - 10000 IOPS, NVMe Read Intensive SSD - 30000 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Diskgroup 4CachevSAN Cache SSD Disk CapacityGB
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vSAN Cache SSD Disk Write Perf (64KB, 100% random)IOPSSATA Mixed Used SSD - 1500 IOPS, SAS Mixed Used SSD - 4500 IOPS, SAS Write Intensive SSD - 7000 IOPS, NVMe Mixed Used SSD - 10000 IOPS, NVMe Intel Optane - 37500 IOPS
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vSAN Cache SSD Disk Read Perf (64KB, 100% random)IOPSSATA Mixed Used SSD - 5000 IOPS, SAS Mixed Used SSD - 11500 IOPS, SAS Write Intensive SSD - 12500 IOPS, NVMe Mixed Used SSD - 37500 IOPS, NVMe Intel Optane - 37500 IOPS
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CapacityvSAN Capacity Disk CapacityGB
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# of vSAN Capacity SSD Disks
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Single vSAN Capacity Disk Write Perf (64KB, 100% random)IOPSSATA Read Intensive SSD - 1500 IOPS, SAS Read Intensive SSD - 2000 IOPS, NVMe Read Intensive SSD - 2500 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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Single vSAN Capacity Disk Read Perf (64KB, 100% random)IOPSSATA Read Intensive SSD - 5000 IOPS, SAS Read Intensive SSD - 10000 IOPS, NVMe Read Intensive SSD - 30000 IOPS, SAS 15k - 200 IOPS, SATA 7k - 80 IOPS
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ReservesMax vSAN node disk capacity usage90%10% for TB vs TiB recalculation + On-Disk format overhead
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Max vSAN node max disk performance usage70%Reserve to keep storage performance on the backend
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Available ESXi host resourcesSpecification
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ComputeCPUAvailable CPU GHz66.56Ghz
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Available CPU Cores25.6Cores
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RAMAvailable RAM614.4GB
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Diskgroup 1CacheCache Capacity600GB
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Cache Write Performance (64KB, 100% random)7000IOPS
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Cache Read Performance (64KB, 100% random)26250IOPS
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CapacityRAW Storage Capacity19200GB
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Available Storage Capacity17280GB
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Available Write Perf (64KB, 100% random)7000IOPS
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Available Read Perf (64KB, 100% random)17500IOPS
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Diskgroup 2CacheCache Capacity0GB
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Cache Write Performance (64KB, 100% random)0IOPS
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Cache Read Performance (64KB, 100% random)0IOPS
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CapacityRAW Storage Capacity0GB
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Available Usable Storage Capacity0GB
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Available Write Perf (64KB, 100% random)0IOPS
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Available Read Perf (64KB, 100% random)0IOPS
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Diskgroup 3CacheCache Capacity0GB
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Cache Write Performance (64KB, 100% random)0IOPS
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Cache Read Performance (64KB, 100% random)0IOPS
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CapacityRAW Storage Capacity0GB
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Available Usable Storage Capacity0GB
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Available Write Perf (64KB, 100% random)0IOPS
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Available Read Perf (64KB, 100% random)0IOPS
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Diskgroup 4CacheCache Capacity0GB
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Cache Write Performance (64KB, 100% random)0IOPS
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Cache Read Performance (64KB, 100% random)0IOPS
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CapacityRAW Storage Capacity0GB
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Available Usable Storage Capacity0GB
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Available Write Perf (64KB, 100% random)0IOPS
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Available Read Perf (64KB, 100% random)0IOPS
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AGGREGATED
Storage
Cache
Tier
RAW Cache Capacity per host1600GB
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Available Cache Capacity per host (after on-disk format and max 600 GB AF vSAN limit)600GB
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Available Write Performance per host (64KB, 100% random)7000IOPS
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Available Read Performance per host (64KB, 100% random)26250IOPS
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Capacity
Tier
RAW Storage Capacity per host19200GB
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Available Capacity per host (after on-disk format)17280GB
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Available Write Perf per host (64KB, 100% random)7000IOPS
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Available Read Performance per host (64KB, 100% random)17500IOPS
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vSANAvailable vSAN Capacity per host17280GB
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Available vSAN Write Perf (64KB, 100% random) per host7000IOPS
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Available vSAN Read Perf (64KB, 100% random) per host17500IOPS
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vSAN Cluster Distributed Datastore
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vSAN Distributed Storage# of nodes4
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CapacityRaw Cache Tier Capacity after On-Disk Format6400GB
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Raw Capacity Tier Capacity after On-Disk Format69120GB
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Slack Space25%
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Usable Capacity without 25% slack space51840GB
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RAID Protection - capacity penalty25%RAID 1 - 50%; RAID 5 - 25%; RAID 6 - 33%; RAID 0 - 0%50%25%33%0%
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Available Capacity after RAID protection38880GB
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PerformanceRAID Protection - write performance penalty4RAID 1 - 2; RAID 5 - 4; RAID 6 - 6; RAID 0 - 12461
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Estimated Max Performance - I/O Size 64 kB, 100% read, 100% random70000IOPS
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Estimated Max Performance - I/O Size 64 kB, 70% read, 100% random51100IOPS
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Estimated Max Performance - I/O Size 64 kB, 50% read, 100% random38500IOPS
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Estimated Max Performance - I/O Size 64 kB, 30% read, 70% random25900IOPS