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your applications run with maximum performance and predictability leading block storage performance and options supports the complete hyperdisk portfolio including hyperdisk balanced hyperdisk balanced high availability hyperdisk extreme hyperdisk throughput and hyperdisk ml block storage options c4n with hyperdisk extreme provides the low latency high speed data access that modern databases and enterprise ai applications need with up to 25 gib s of block storage throughput and nearly 1m iops c4n offers a 2 5x increase in storage performance over c4 c4n supports the following discount and consumption options resource based committed use discounts cuds flexible cuds spot vms reservations sole tenancy spread and compact placement policies c4n limitations the c4n machine series has the following restrictions c4n machine types are only available as predefined machine types custom machine types aren t available you can t use gpus with c4n instances c4n machine types c4n highcpu machine types vcpus 1 memory gb titanium ssd physical nic count numa domains maximum internal bandwidth gbps maximum external bandwidth gbps c4n highcpu 2 2 4 not supported 1 1 shared up to 25 up to 7 c4n highcpu 4 4 8 not supported 1 1 shared up to 30 up to 7 c4n highcpu 8 8 16 not supported 1 1 shared up to 40 up to 15 c4n highcpu 16 16 32 not supported 1 1 shared up to 50 up to 25 c4n highcpu 24 24 48 not supported 1 1 shared 50 up to 25 c4n highcpu 48 48 96 not supported 1 1 isolated 100 up to 50 c4n highcpu 96 96 192 not supported 1 2 200 up to 100 c4n highcpu 192 192 384 not supported 2 4 full machine 400 2 up to 200 c4n standard machine types vcpus 1 memory gb titanium ssd physical nic count numa domains maximum internal bandwidth gbps maximum external bandwidth gbps c4n standard 2 2 7 not supported 1 1 shared up to 25 up to 7 c4n standard 4 4 15 not supported 1 1 shared up to 30 up to 7 c4n standard 8 8 30 not supported 1 1 shared up to 40 up to 15 c4n standard 16 16 60 not supported 1 1 shared up to 50 up to 25 c4n standard 24 24 90 not supported 1 1 shared 50 up to 25 c4n standard 48 48 180 not supported 1 1 isolated 100 up to 50 c4n standard 96 96 360 not supported 1 2 200 up to 100 c4n standard 192 192 720 not supported 2 4 full machine 400 2 up to 200 c4n highmem machine types vcpus 1 memory gb titanium ssd physical nic count numa domains maximum internal bandwidth gbps maximum external bandwidth gbps c4n highmem 2 2 15 not supported 1 1 shared up to 25 up to 7 c4n highmem 4 4 31 not supported 1 1 shared up to 30 up to 7 c4n highmem 8 8 62 not supported 1 1 shared up to 40 up to 15 c4n highmem 16 16 124 not supported 1 1 shared up to 50 up to 25 c4n highmem 24 24 186 not supported 1 1 shared 50 up to 25 c4n highmem 48 48 372 not supported 1 1 isolated 100 up to 50 c4n highmem 96 96 744 not supported 1 2 200 up to 100 c4n highmem 192 192 1488 not supported 2 4 full machine 400 2 up to 200 c4n standard machine types vcpus 1 memory gb titanium ssd physical nic count numa domains maximum internal bandwidth gbps maximum external bandwidth gbps c4n standard 4 lssd preview 4 15 1 x 375 gib 375 gib 1 1 shared up to 30 up to 7 c4n standard 8 lssd preview 8 30 1 x 375 gib 375 gib 1 1 shared up to 40 up to 15 c4n standard 16 lssd preview 16 60 2 x 375 gib 750 gib 1 1 shared up to 50 up to 25 c4n standard 24 lssd preview 24 90 4 x 375 gib 1 500 gib 1 1 shared 50 up to 25 c4n standard 48 lssd preview 48 180 8 x 375 gib 3 000 gib 1 1 isolated 100 up to 50 c4n standard 96 lssd preview 96 360 16 x 375 gib 6 000 gib 1 2 200 up to 100 c4n standard 192 lssd preview 192 720 32 x 375 gib 12 000 gib 2 4 full machine 400 2 up to 200 c4n highmem machine types vcpus 1 memory gb titanium ssd physical nic count numa domains maximum internal bandwidth gbps maximum external bandwidth gbps c4n highmem 4 lssd preview 4 31 1 x 375 gib 375 gib 1 1 shared up to 30 up to 7 c4n highmem 8 lssd preview 8 62 1 x 375 gib 375 gib 1 1 shared up to 40 up to 15 c4n highmem 16 lssd preview 16 124 2 x 375 gib 750 gib 1 1 shared up to 50 up to 25 c4n highmem 24 lssd preview 24 186 4 x 375 gib 1 500 gib 1 1 shared 50 up to 25 c4n highmem 48 lssd preview 48 372 8 x 375 gib 3 000 gib 1 1 isolated 100 up to 50 c4n highmem 96 lssd preview 96 744 16 x 375 gib 6 000 gib 1 2 200 up to 100 c4n highmem 192 lssd preview 192 1 488 32 x 375 gib 12 000 gib 2 4 full machine 400 2 up to 200 1 each virtual cpu vcpu is implemented as a single hardware multithread by default two vcpus share each physical cpu core 2 for instances with 192 vcpus you must configure at least 2 network interfaces vnic with each network interface attached to a different physical nic to achieve the full network throughput compute engine automatically maps the vnic to a physical nic in a round robin fashion supported disk types for c4n c4n instances support only the nvme disk interface and can use the following block storage types hyperdisk balanced hyperdisk balanced hyperdisk balanced high availability hyperdisk balanced high availability hyperdisk throughput hyperdisk throughput hyperdisk extreme hyperdisk extreme hyperdisk ml hyperdisk ml titanium ssd preview for the performance limits of each hyperdisk type see hyperdisk performance limits note to use local ssd disks with c4n instances you must first request access disk and capacity limits the following restrictions apply the number of hyperdisk volumes can t exceed 64 per vm the maximum total disk capacity across all disks can t exceed 512 tib for details about the capacity limits see hyperdisk capacity limits per vm c4n storage limits are described in the following table c4n highcpu maximum number of disks per instance machine types all hyperdisk types hyperdisk balanced hyperdisk balanced high availability hyperdisk throughput hyperdisk extreme hyperdisk ml c4n highcpu 2 8 8 8 8 8 8 c4n highcpu 4 16 16 16 16 16 16 c4n highcpu 8 32 32 32 32 32 32 c4n highcpu 16 32 32 32 32 32 32 c4n highcpu 24 32 32 32 32 32 32 c4n highcpu 48 64 64 64 64 64 64 c4n highcpu 96 128 128 128 128 128 128 c4n highcpu 192 128 128 128 128 128 128 c4n standard maximum number of disks per instance machine types all hyperdisk types hyperdisk balanced hyperdisk balanced high availability hyperdisk throughput hyperdisk extreme hyperdisk ml c4n standard 2 8 8 8 8 8 8 c4n standard 4 16 16 16 16 16 16 c4n standard 8 32 32 32 32 32 32 c4n standard 16 32 32 32 32 32 32 c4n standard 24 32 32 32 32 32 32 c4n standard 48 64 64 64 64 64 64 c4n standard 96 128 128 128 128 128 128 c4n standard 192 128 128 128 128 128 128 c4n highmem maximum number of disks per instance machine types all hyperdisk types hyperdisk balanced hyperdisk balanced high availability hyperdisk throughput hyperdisk extreme hyperdisk ml c4n highmem 2 8 8 8 8 8 8 c4n highmem 4 16 16 16 16 16 16 c4n highmem 8 32 32 32 32 32 32 c4n highmem 16 32 32 32 32 32 32 c4n highmem 24 32 32 32 32 32 32 c4n highmem 48 64 64 64 64 64 64 c4n highmem 96 128 128 128 128 128 128 c4n highmem 192 128 128 128 128 128 128 c4n standard maximum number of disks per instance machine types all hyperdisk types hyperdisk balanced hyperdisk balanced high availability hyperdisk throughput hyperdisk extreme hyperdisk ml c4n standard 4 lssd preview 16 16 16 16 16 16 c4n standard 8 lssd preview 32 32 32 32 32 32 c4n standard 16 lssd preview 32 32 32 32 32 32 c4n standard 24 lssd preview 32 32 32 32 32 32 c4n standard 48 lssd preview 64 64 64 64 64 64 c4n standard 96 lssd preview 128 128 128 128 128 128 c4n standard 192 lssd preview 128 128 128 128 128 128 c4n highmem maximum number of disks per instance machine types all hyperdisk types hyperdisk balanced hyperdisk balanced high availability hyperdisk throughput hyperdisk extreme hyperdisk ml c4n highmem 4 lssd preview 16 16 16 16 16 16 c4n highmem 8 lssd preview 32 32 32 32 32 32 c4n highmem 16 lssd preview 32 32 32 32 32 32 c4n highmem 24 lssd preview 32 32 32 32 32 32 c4n highmem 48 lssd preview 64 64 64 64 64 64 c4n highmem 96 lssd preview 128 128 128 128 128 128 c4n highmem 192 lssd preview 128 128 128 128 128 128 network support for c4n instances c4n instances deliver up to 400 gbps standard network bandwidth for vm to vm networking a 4x increase in network bandwidth per vcpu when compared to standard c4 instances c4n instances don t use per vm tier_1 networking performance for the largest c4n machine types 192 vcpus during instance creation you must configure at least 2 network interfaces vnics that use jumbo frames 8896b to achieve the full network throughput compute engine maps the vnics automatically to physical nics pnics in a round robin way the guest os or your application can then divide the network load across at least two vnics mapped to separate pnics to achieve the full network throughput and ensure optimal performance c4n instances require gvnic network interfaces the maximum number of network interfaces that you can attach to an instance scales with the number of vcpus up to a maximum of 10 network interfaces for more information about using multiple network interfaces with compute engine see multiple network interfaces before migrating to c4n or creating c4n instances make sure that the operating system image that you use fully supports c4n and higher network bandwidths google recommends using the latest gvnic driver version to benefit from additional features and bug fixes maintenance experience for c4n instances during the lifecycle of a compute engine instance the host machine that your instance runs on undergoes multiple host events a host event can include the regular maintenance of compute engine infrastructure or in rare cases a host error compute engine also applies some non disruptive lightweight upgrades for the hypervisor and network in the background the c4n machine series offers the following features related to host maintenance machine type typical scheduled maintenance event frequency maintenance behavior advanced notification on demand maintenance simulate maintenance c4n 192 minimum of 30 days live migrate up to 7 days yes yes c4n lssd preview minimum of 30 days live migrate up to 7 days yes yes all others minimum of 30 days live migrate up to 7 days no yes the maintenance frequencies shown in the previous table are approximations not guarantees compute engine might occasionally perform maintenance more frequently m4n machine series m4n is engineered to deliver the highest i o performance available reaching up to 12 500 mib s of combined host storage performance and up to 200 gbps network bandwidth this new level of performance opens up new possibilities for i o intensive workloads that require extreme bandwidth for data access and processing m4n instances are powered by the intel emerald rapids processors and titanium offload processors this machine series is well suited for large in memory databases such as sap hana as well as online analytical processing olap and in memory data analytics workloads the m4n machine series offers a lower cost per transaction for oracle database workloads and the best tco when compared to any other compute instance for databases that require licensing per core m4n machine types allow you to provision up to 112 vcpus and up to 2 9 tb of ram m4n instances use only nvme for storage and support hyperdisk balanced and hyperdisk extreme m4n instances use only gvnic for networking virtio net and scsi interfaces are not supported m4n limitations the m4n machine series has the following restrictions m4n machine types are only available as predefined machine types custom machine types aren t available you can t use gpus with m4n instances m4n instances are available in only select zones and regions m4n machine types machine types vcpus 1 memory gb local ssd maximum internal network bandwidth gbps 2 maximum external network bandwidth gbps 2 numa domains m4n hypermem 16 16 248 not available up to 50 up to 25 1 m4n hypermem 32 32 496 not available 57 28 1 m4n hypermem 64 64 992 not available 114 57 2 m4n megamem 28 28 372 not available 50 25 1 m4n megamem 56 56 744 not available 100 50 1 m4n megamem 112 112 1 488 not available 200 100 2 m4n ultramem 56 56 1 488 not available 100 50 2 m4n ultramem 112 112 2 976 not available 200 100 4 1 each virtual cpu vcpu is implemented as a single hardware multithread and two vcpus share each physical cpu core by default 2 maximum egress bandwidth cannot exceed the number given actual egress bandwidth depends on the destination ip address and other factors see network bandwidth supported disk types for m4n m4n instances can use the following block storage types hyperdisk balanced hyperdisk balanced hyperdisk extreme hyperdisk extreme disk and capacity limits the following restrictions apply the number of hyperdisk volumes can t exceed 64 per vm the maximum total disk capacity across all disks can t exceed 512 tib for details about the capacity limits see hyperdisk capacity limits per vm m4n storage limits are described in the following table maximum number of disks machine types hyperdisk per vm hyperdisk balanced hyperdisk throughput hyperdisk extreme m4n hypermem 16 16 16 0 8 m4n hypermem 32 32 32 0 8 m4n hypermem 64 32 32 0 8 m4n megamem 28 32 32 0 8 m4n megamem 56 32 32 0 8 m4n megamem 112 64 64 0 8 m4n ultramem 56 32 32 0 8 m4n ultramem 112 64 64 0 8 network support for m4n instances m4n instances require gvnic network interfaces m4n supports up to 200 gbps network bandwidth for standard networking and doesn t support per vm tier_1 networking performance before migrating to m4n or creating m4n vm instances make sure that the operating system image that you use supports the gvnic driver for vm instances these images include an updated gvnic driver even if the guest os shows the gve driver version as 1 0 0 if your m4n vm is using an operating system with an older version of gvnic driver this is still supported but the vm might experience suboptimal performance such as less network bandwidth or higher latency if you use a custom os image to create a m4n vm you can manually install the most recent gvnic driver the gvnic driver version v1 4 2 or later is recommended for use with m4n vms google recommends using the latest gvnic driver version to benefit from additional features and bug fixes maintenance experience for m4n instances during the lifecycle of a compute engine instance the host machine that your instance runs on undergoes multiple host events a host event can include the regular maintenance of compute engine infrastructure or in rare cases a host error compute engine also applies some non disruptive lightweight upgrades for the hypervisor and network in the background the m4n machine series offers the following features related to host maintenance machine type typical scheduled maintenance event frequency maintenance behavior advanced notification on demand maintenance simulate maintenance all machine types monthly live migrate 7 days yes yes the maintenance frequencies shown in the previous table are approxima...