AccentOS limits¶

This section presents the limits for components of the AccentOS cloud platform:

Feature	Information
Placement in the register of Russian software.	Yes

General characteristics:¶

Feature	Information
Hypervisor	KVM (Xen, ESXi, Hyper-V, 4х100GE, 8х40GE, 8х25GE, 16х10GE are also supported)
Support for booting hypervisor from USB	Yes
Maximum number of logical cores per host	384 (supported up to 5120)
Maximum memory on the host, GB	12288 (supported up to 64527)
Memory optimization technologies	Memory Deduplication, Host Swap, Memory Ballooning
Tools for working with third-party storage systems	Cinder
VM High Availability	High Availability
Ensuring continuous operation of the VM	Kemari
Maximum number of nodes in a cluster	There are no restrictions on the number
Migrating running VMs between hosts	Live migration
Migrating VMs between host servers with different processors	Supported
Migrating VM virtual disks from one storage to another	Supported
Automatic load balancing / VM migration between hosts	Supported
Enabling/disabling unused hosts	Supported
Automatic transfer of VM disks between storages	Supported
API for integration with anti-virus systems	Kaspersky Antivirus
Support from the backup system	Bacula, Bareos
Creating resource pools	Supported
Multipath support	Supported

Feature	Information
PVLAN support	Supported
Network performance monitoring, QoS settings, VM bandwidth limit	Supported

Feature	Information
Centralized Management	AccentOS
Maximum number of hosts	There are no restrictions on the number
Web Based Management	Supported
Automatic deployment of hosts	Supported
Configuration files (profiles) of host servers	Supported
Automatic upgrade of virtual infrastructure	Supported
Backup Automation/API	Supported
Built-in backup tools	Supported
Storage profiles	Supported
Orchestration tools	Supported

Feature	Information
Maximum number of vCPUs per 1 instance	384
Maximum amount of RAM per 1 instance	4 TB
Maximum number of vNICs per 1 instance	28 (supported up to 144)
Creating instance from templates	Supported
Ability to automatically configure guest OS settings when deploying instance from a template	Supported
Ability to reserve CPU resources for instance	Supported
Ability to reserve memory resources for instance	Supported
Ability to forward USB to instance	Supported
Hot Adding Processors/Memory to instance	Supported
Hot add devices	Supported
Guest NUMA support	Supported
Maximum VM virtual disk size	500 TB
Creation of thin disks	Supported
Caching virtual disks on SSD/Flash	Supported
Caching virtual disks in RAM	Supported (only for VDI and classic instances with ephemeral disks)
Maximum Pass through Disk Size	64 TB
NPIV Support	Supported
Automatic reboot of hung instances	Supported
Automatic restart of services inside the instance	Yes (requires the installation of an agent and an active integration module with the monitoring system)
Instance snapshots support	Supported
Ability to limit instances by IOPS	Supported
Forwarding devices into the instance	SR-VIO

Feature	Information
Hardware protection for thin client connections	Supported
Thin client for diskless workstation	Supported
Thin client terminal on a domestically developed hardware platform	Supported

Feature	Information
Expanding the built-in backup functionality	Supported, specialized API is provided
Instances and hosts performance monitoring	Supported
Building Failover Clustered Storage on Local Disks	Supported
Instances firewall	Supported
Perimeter Network Firewall	Supported

Feature	Information
Giving recommendations for resource allocation for instance	Supported
Creating reports on the resources used	Supported

Feature	Information
Support for software-based VM replication	Supported
Support for replication at the storage level	Supported
Ability to implement Disaster Recovery scenarios	Supported

Feature	Information
Migration of physical and virtual servers to a virtualization platform	Supported (using outside means)