01 · Cloud Computing
High Availability: business continuity without compromise
Service details
- High Availability
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High Availability – business continuity without compromise
Today's businesses cannot afford downtime. Every minute of system unavailability means real financial, reputational and operational losses. That is why we deploy High Availability (HA) solutions that guarantee uninterrupted operation of key IT services — even in the event of hardware or software failure. Why High Availability from Remote Admin? We specialize in designing and maintaining highly available IT environments. For years we have delivered end-to-end deployments for enterprises with elevated availability requirements.
Technology tailored to your needs We build HA architectures based on both licensed products and open-source solutions — optimizing the budget without sacrificing quality or reliability. We work with proven technologies and respected platforms: • Fortinet • Cisco • Dell • VMware • Proxmox • ZFS • Ceph
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HA cluster maintenance
- End-to-end service – hardware, licenses, consulting, deployment, configuration
- 24/7/365 support – full support and fast incident response
- Maintenance and monitoring – continuous environment health checks
- Complete data protection – failover, redundancy and fault tolerance
- Hardware warranty
- Zero-downtime scaling – flexibility that grows with your business
A 30-minute call with an engineer — we'll outline the scope and ballpark budget, with no sales pitch.
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Frequently asked questions
If you have questions not covered in the list below, contact us
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Ceph
Ceph — a distributed storage system for environments with the highest availability.
Ceph is an open-source, highly scalable, distributed enterprise-class storage system designed for high availability (HA), fault tolerance and automatic data rebalancing. It can deliver block, file and object storage simultaneously within a single platform. The system is built on RADOS technology, which provides automatic data replication, self-healing and load distribution across cluster nodes.
Scalability – from TB to many petabytes.
Ceph was designed for virtually unlimited growth:
- Capacity: from a few TB to hundreds of PB (practically no architectural limit)
- Performance: grows linearly as new nodes and disks are added
- Serving thousands of clients simultaneously Expansion requires no downtime — data and load are automatically rebalanced across the entire cluster.
Ceph is a great fit for environments that require:
- High Availability and high fault tolerance
- Dynamic, flexible expansion of capacity or performance
- Integration with cloud systems and containerization
- Centralized storage for large virtualization clusters
It is most often chosen by:
- Data centers and large enterprise environments
- Cloud platforms and private clouds (OpenStack, Kubernetes, VMWare, Proxmox)
- Hosting / SaaS providers
- Big Data and AI infrastructures
When is Ceph not the best choice?
Despite its enormous capabilities, Ceph is not always optimal. It is not recommended for:
- small environments with only 1–2 servers (no benefit from distribution)
- setups requiring very low latency (e.g. critical transactional databases)
- use cases without a dedicated administration team (operational expertise required)
Ceph requires suitable network infrastructure (ideally 10/25/40GbE), and its efficiency increases with scale.
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ZFS
ZFS — an advanced file system and storage manager
ZFS (Zettabyte File System) is a modern, extremely fault-tolerant file system combined with a storage management layer. Originally created by Sun Microsystems and now developed as an open-source project, it is one of the most respected technologies in environments where data integrity and high performance are key.
ZFS combines in a single solution:
- File system
- Software-defined storage (ZFS Storage Pools)
- Data protection and repair mechanisms
Scalability – from TB to zettabytes
As the name suggests, the ZFS architecture is designed to handle zettabyte-scale data volumes.
- Capacity: from a few TB to many PB with no artificial limits
- Performance: high, especially when using SSDs as cache (L2ARC) and log (ZIL/SLOG)
- Build enterprise-class storage on standard (x86) hardware
Scaling is done by adding disks or additional vdevs to the pool.
Ideal ZFS use cases
It excels wherever the top priorities are:
- data integrity
- reliability and a self-healing environment
- space savings (compression/deduplication)
- high performance with low latency
Most commonly found in:
- Virtualization (Proxmox, VMware, others)
- Data backup and archiving
- Database and application servers
- NAS and storage for local networks (TrueNAS, OpenIndiana)
When is ZFS not the best choice?
It is not always a one-size-fits-all solution:
- Less scaling flexibility than Ceph (vertical scaling, not distributed)
- Requires sufficient RAM (recommended minimum: 1 GB RAM per 1 TB of data + additional overhead)
- With deduplication — very high memory requirements
- Not designed for storage distributed across multiple physical locations
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Proxmox VE — a comprehensive data center-class virtualization platform
Proxmox Virtual Environment (Proxmox VE) is an advanced open-source platform for server virtualization, containerization and management of highly available IT clusters. It combines features known from enterprise-class solutions (VMware, Hyper-V) without licensing costs and with full flexibility to adapt.
Proxmox integrates in a single environment:
- Virtual Machine (KVM) – full machine virtualization
- LXC Containers – lightweight application containers
- Storage management (ZFS, Ceph, NFS, iSCSI, SSD cache)
- High availability (HA) and live machine migration
- Built-in firewall, backup and replication
Administration is done through an intuitive web panel and API.
Scalability — from a single host to a private cloud
Proxmox performs well in both small deployments and large clusters:
- 1 → 100+ nodes in an HA cluster
- From a handful of VMs to thousands of machines and containers
- Performance and capacity grow linearly as servers and storage are added
It can work with both local storage (ZFS, RAID) and distributed Ceph for larger deployments.
Benefits of deploying Proxmox
- No licensing costs — an ideal cost-to-capability ratio
- High Availability and Live Migration at no extra charge
- Built-in backup + machine replication
- Simple administration (GUI + API + CLI)
- Integration with Ceph/ZFS → high storage performance
- Flexibility — zero-downtime scaling
- Multi-platform support and fast VM/container provisioning
- Large, active community + optional commercial support
Where does Proxmox work best?
We see the greatest benefits in:
- SMEs that need HA without enterprise licenses
- Service provider and hosting data centers
- IT modernization projects: migration from VMware/WS/Hyper-V
- Research environments, labs, education
- Distributed company locations (branches, retail)
When is Proxmox not the best choice?
- Companies that need certified integrations with enterprise vendors (SAP HANA, Oracle RAC, etc.) may require OEM solutions
- Very large environments with ultra-high SLAs may prefer hyper-converged architectures with full vendor support
- Not recommended for single servers without redundancy when HA is required
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Hyper-V — Microsoft's virtualization platform for business environments
Hyper-V is a type 1 hypervisor developed by Microsoft, designed for server virtualization and building highly available IT environments based on Windows Server and Microsoft Azure. It enables centralized management of compute, storage and network resources — both on-premises and in a hybrid model.
Hyper-V is an integral part of the Microsoft ecosystem, which ensures compatibility and full support for Windows environments and many business applications.
Scalability — from a few machines to enterprise environments
Hyper-V handles environments of all sizes:
- from single hosts to hundreds of servers in clusters
- support for thousands of virtual machines
- local or network storage management (CSV, SAN, SMB 3.0)
- native Azure integration for hybrid solutions
Performance and capacity grow as the cluster expands — with no downtime for critical services.
Key benefits of Hyper-V
- Full integration with the Microsoft ecosystem (Active Directory, Azure, SQL, Exchange)
- High availability: Live Migration, Storage Migration, HA replica
- GPU passthrough support for VDI and graphics applications
- Flexible storage: from SAN to SMB 3.0 with Continuously Available Shares
- Security: Shielded VMs, Secure Boot, Virtual TPM
- Centralized management and automation (PowerShell, SCVMM)
Leveraging Windows Server Standard/Datacenter licenses helps optimize costs compared to third-party hypervisors.
Where does Hyper-V work best?
Especially recommended for:
- Companies working mainly with Microsoft software
- Environments with applications that require certification and full vendor support
- Hybrid infrastructures working with Azure
- Environments with strict security and compliance requirements
- Hosting accounting solutions
Many organizations choose Hyper-V to ensure business continuity for mission-critical systems.
When is Hyper-V not the best choice?
- For solutions heavily based on Linux/Kubernetes — there are better-suited alternatives
- For MSPs and hosting providers that need flexible automation and multi-tenancy — open-source platforms are often chosen
- When Windows Server licensing adds unnecessary infrastructure cost
Full-year support for your High Availability installation
24/7/365
Need support and advice?
Book a call with our advisor. We'll select services tailored strictly to your needs, with no artificial costs.
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First step
Let's talk about High Availability.
30 minutes, no slide deck. We'll tell you straight whether this service solves your problem, what scope makes sense and how much it costs.
A proposal with scope and pricing within 48 hours of the call.
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