Any questions?

Yes. We can assist teams with Proxmox knowledge transfer, guidance, and operational best practices to help them get the most from their environment.

Yes. We help customers implement backup and recovery strategies using Proxmox Backup Server and related infrastructure solutions.

Yes. If you are facing a critical issue, croit offers emergency support services to help diagnose and resolve urgent Proxmox-related problems.

No. In addition to subscription-related support options, croit also offers separate support services, including 24/7 support and emergency assistance.

As a Proxmox Gold Partner, croit provides consulting, subscriptions, support, and migration guidance for organizations adopting Proxmox. We help customers plan, deploy, and operate reliable Proxmox environments.

As a Proxmox Gold Partner, croit provides consulting, subscriptions, support, and migration guidance for organizations adopting Proxmox. We help customers plan, deploy, and operate reliable Proxmox environments.

Depending on the environment, migration options can include ESXi import, OVF/OVA import, disk import, P2V, or rebuild-per-application where needed. croit helps customers choose and validate the right path.

No, Proxmox migrations are not considered live migrations in this situation. The final transfer will require some downtime, so customers should schedule a maintenance window and have a rollback plan ready.

Yes. croit offers ongoing Proxmox support, including 24/7 support, emergency support, consulting, and training to help teams operate Proxmox successfully after migration.

Yes. croit helps customers moving from VMware to Proxmox with planning, validation, support, and migration guidance, including preparation around drivers, storage, networking, and cutover considerations.

We help with migration planning, architecture guidance, readiness checks, risk reduction, and post-migration support. We also help customers choose the right migration path and prepare for cutover.

croit helps customers plan, validate, and support Proxmox migrations. We provide expert guidance, technical validation, and operational support, while customers carry out the migration steps within their own environment.

Yes. If you want ongoing assistance, you can add Proxmox support after go-live. We keep the migration project focused on delivery, then transition to support as a separate engagement.

You receive a migration plan, target architecture documentation, cutover runbooks, a validation report, and operational documentation for Day-2. If requested, we also provide enablement workshops so your team can operate Proxmox confidently.

Yes. We migrate mixed environments and validate drivers, boot configuration, and performance as part of the pilot. For sensitive workloads we run application-level checks and confirm backups/restores prior to production migration.

We review your current network design and reproduce required segmentation and routing in Proxmox (bridges, VLAN tagging, MTU/jumbo frames where needed). Connectivity and firewall rules are validated in the pilot to avoid surprises during cutover.

We maintain backup coverage throughout the project. For Proxmox environments we commonly use Proxmox Backup Server (PBS) and ensure restore tests before production cutover. DR requirements are mapped in the plan so you keep a clear recovery path during and after migration.

Both are valid. If you want the fastest migration with minimal change, keeping SAN/NAS is usually simplest. If you want a software-defined approach with scale-out storage, Ceph can be a strong option. We recommend a storage strategy based on performance, failure domains, growth, and operational preference.

Often no. Many teams reuse existing servers and storage, then modernize incrementally. During assessment we validate hardware compatibility, drivers, and sizing, and recommend upgrades only where needed for performance or resilience.

Every cutover includes a rollback plan defined during the pilot. We document the steps, test them, and set clear go/no-go criteria. If validation fails during cutover, we revert to the previous state and reschedule after fixes.

Yes. We use wave-based cutovers, maintenance windows, and pre-migration testing to reduce downtime. For critical systems we plan service-level cutovers and validate performance and dependencies before going live.

Most projects run in phases: an assessment, a pilot, then the production cutover. The exact timeline depends on number of hosts/VMs, storage, network complexity, and downtime requirements. After the assessment we provide a migration plan with a realistic timeline and migration waves.

Yes. croit provides Proxmox support services to customers worldwide through remote support channels.

Yes. Remote support worldwide. HQ Germany; subsidiary Texas, USA.

Yes. croit offers Proxmox training as part of its services, providing hands-on instruction and best practices with certified instructors.

Yes. Emergency support is available on a best-effort basis outside of formal subscriptions; response times are subject to staff availability.

You can start support by contacting croit through the contact form on the support page or by subscribing to a structured support plan tailored to your needs.

Yes. Proxmox support is delivered remotely and securely, allowing fast response regardless of location.

Support covers currently maintained Proxmox VE versions, including clustered and high-availability deployments. Version specifics can be clarified during onboarding.

Response times are defined by SLA and depend on the selected support tier and issue severity. Critical incidents receive the fastest response, with clear and predictable timeframes.

Yes. croit is an official Proxmox Gold Partner and authorized reseller for Proxmox Virtual Environment (VE), Proxmox Backup Server (PBS), and Proxmox Mail Gateway (PMG).

Yes. Support is designed for production Proxmox VE environments running business-critical workloads, including multi-node clusters and high-availability setups.

24/7 Proxmox support includes continuous availability for incident response, troubleshooting, and operational assistance for Proxmox VE clusters. This typically covers host failures, cluster issues, storage problems, networking, and VM availability.

Yes. Our support is designed for mission-critical, enterprise-grade Ceph environments with high availability and reliability requirements.

Yes. In addition to support, we advise on architecture, sizing, performance tuning, and best practices to ensure long-term stability and scalability.

We offer defined SLAs with guaranteed response times, including rapid escalation for critical production incidents.

Yes. We support both new and existing Ceph environments, regardless of whether they were originally deployed by croit or another provider.

croit is a Founding Member of the Ceph Foundation with deep, long-term involvement in the Ceph ecosystem. This gives our customers direct access to proven expertise and upstream knowledge.

We support enterprise Ceph deployments across on-premises, hybrid, and cloud environments, including block, object, and file use cases.

We provide round-the-clock prepaid support covering incident response, troubleshooting, performance optimization, upgrades, and operational guidance for production Ceph clusters.

Ceph storage from croit is priced per raw terabyte and per cluster, so the quote depends on your capacity. Use the price calculator on the Ceph storage page: enter the capacity you have or need and it shows the monthly price in dollars and euros. For anything beyond that, contact us.

Yes, croit is designed to work seamlessly with a wide variety of storage environments. It supports multiple protocols, so whether you’re working with object, block, or file storage, croit can fit into your existing infrastructure without a hitch.

Our solution supports a wide range of hardware, allowing you to use cost-effective options that suit your needs.

Yes. With Ceph’s distributed architecture, you can scale up or down based on your requirements without breaking the bank.

By using Ceph’s open-source technology and eliminating vendor lock-ins, croit provides enterprise-level storage at a significantly lower cost.

Yes. Our solution grows with your data needs, from small setups to enterprise-scale systems.

We provide an intuitive management interface that makes deploying and scaling Ceph straightforward, even without prior expertise.

Ceph is an open-source, software-defined storage system that combines object, block, and file storage into one platform.

Yes, we provide comprehensive Single Sign-On support through multiple authentication protocols:

OpenID Connect (OIDC): Integrate with popular identity providers like Google, Okta, Auth0, Azure AD, Keycloak and Authentik
LDAP/Active Directory: Connect directly with your organization's existing directory service for seamless authentication

Both options allow you to maintain centralised user management while providing secure, streamlined access for your team. Users can log in using their existing corporate credentials without needing to create and manage separate accounts.

For more information, please visit our documentation page

Proxmox has out-of-the-box support for Ceph, which makes the combination a perfect choice. In combination with Proxmox an organization can replace VMware and VSAN with a scalable feature-rich solution with far lower total cost of ownership (TCO). Because of this out-of-the-box integration, there’s no need for gluing pieces together manually or struggling with iSCSI.

Proxmox VE offers enterprise-class features with a focus on software-based solutions. It’s ideal for virtualizing IT infrastructure, optimizing resources, and increasing efficiencies at minimal expense. You can easily handle demanding Linux and Windows workloads and scale computing and storage as needed.

Proxmox is a complete server management platform that tightly integrates KVM hypervisor, Linux Containers (LXC), software-defined storage, and networking. With a user-friendly web interface, you can effortlessly manage VMs, containers, clusters, and disaster recovery.

In general, croit works on all servers on the market. Nevertheless, we cannot test against every manufacturer. There is good experience with servers from Supermicro and Dell, which are used by a large number of customers. If you are unsure, we offer tested, guaranteed functioning hardware in individual configuration.

With croit you are able to boot any x86_64 / amd64 system that allows PXE boot.

Object storage is a modern way to interact with storage. Whenever you have any type of object (file), you can put them on to the croit cluster using a standardized S3 or SWIFT compatible RESTful API. Since it provides interfaces compatible with OpenStack Swift and Amazon S3, the Ceph Object Gateway has its own user management

Erasure Code (EC) is a way of dividing up data and storing it securely on separate devices. Both performance and safety as well as the required space can be individually adjusted as required. Detailed information on how Erasure Code works can be found on Wikipedia.

croit provides a intuitive, advanced and reliable software to build and run Ceph in production. With our software management solution, you can bring up Ceph clusters within a few minutes.

CephFS is a POSIX-compliant file system ontop of a Ceph cluster. CephFS can be used on any number of clients simultaneously and changes are immediately applied to all clients. With CephFS you get a scalable file system that you can use as usual to store your data. In Linux servers you can make this completely transparent for the respective application. Whenever you need more space, you just need to expand your cluster to instantly store more data in the same file system.

Block-based storage interfaces are the most common way to store data. A virtual block device simulates a traditional hard disk. From the application’s point of view, there is no difference to a dedicated hard disk. The block storage can be exported using RBD or iSCSI. Thus almost all virtualization environments as well as physical hardware can be connected to croit.

Since the operation of your cluster has the highest priority, it has no effect when the license expires. You will only receive a warning within our software alerting you to the problem. After a transition period, however, the functions in the web interface that are no longer licensed will be blocked. Enterprise features that have already been set up, however, will continue to work, but can no longer be changed. As soon as you renew the license, all control functions are available in our software.

croit provides a uniqe solution to build and run your cluster. Starting from the croit management node, you can boot your storage hardware over the network. As a result, you save costs and time. Furthermore, it facilitates daily operation, as it automates update processes and increases reliability, for example. In addition, in the event of an error, a new, clean and error-free operating system can be started by a simple server reboot, which automatically recognizes the hardware and starts up the services again. All operating system images are checked by croit for known problems and run through a comprehensive test protocol. Of course you can also use your own PXE boot images if you have special requirements.

• You can’t use object storage with traditional databases.
• High latency for each object access.
• Updates of object requires rewrite of the complete object.
• Badly suited for frequently changing data.
• Only limited support to mount an object storage as a filesystem.
• Access is only possible with additional client software.

• A simple RESTful API, with clients available for all major operating systems and programming languages.
• Quite easy to scale even to billions of objects.
• Additional metadata can be stored on each object.
• The I/O requirements to the underlying hardware are low.
• Caching can greatly improve performance.
• Can be integrated into modern applications and accessed from remote.
• Good integration with erasue coding to save additional underlying disk space.
• Individual plugins can be attached to solve complex problems.
• Client side PGP based encryption for increased security.

Many companies rely on VMware solutions for virtualization. Because good interoperability is important to us, we’ve optimized our software to deliver storage for VMware.

You should choose our hooks scripts in the Maintenance - Hooks menu to configure the image after system start on the fly. Otherwise you have to extract the operating system image, change it as you like and repack it. The current image can be found in the container folder /images/.../filesystem.squashfs. Please try to use the hooks scripts first. It is the much better way.

You can operate any number of clusters with croit. However, you need a separate Layer 2 network and a separate management VM for each cluster. Unfortunately, there is currently no way to manage multiple clusters from a single management server. If you run several clusters, you get the quantity discount for all OSDs of all installed clusters.

Thanks to RGW you can easily and conveniently migrate existing applications that use S3. All you have to do is enter the access account of the cluster installed with croit in your application.

As always, it is important to have backups. Therefore, it is also important to create functioning backups for our management nodes. To make it as easy as possible for our users to back up and restore the management node, we offer a fully encrypted cloud backup solution within the management interface. All you have to do is make sure you don’t lose the encryption key.

As we build our solution upon Debian Linux, we provide our own Debian Ceph mirror for public use. You find more in our Blog post.

As a service provider for storage systems, data center solutions, Linux and networks, we naturally also offer SLAs. In addition, you can individually select the response times and availability you require. We offer SLAs only in connection with a software license. We would like to point out, however, that with good planning of your cluster, no expensive SLA is actually required, since the failure of components is tolerable at any time. Please do not hesitate to contact us if you would like an SLA.

CephFS is a POSIX-compliant file system that can scale to petabyte of data and billions of objects. It is possible to make individual settings on a per file or folder basis to store parts of the data in different areas or storage classes.  

As a customer-oriented company, croit offers a number of advantages over other solutions. This gives you as a customer direct access to our specialized consultants who, thanks to years of experience, get the most out of your infrastructure. In addition, we offer special Service Level Agreements (SLA), through which you receive round-the-clock support. With croit you can build and operate clusters quickly, easily and reliably Ceph. In addition, croit offers a variety of additional functions based on standardized open source components. These include NFS-Ganesha, High-Availability (HA) with Keepalived, statistics using Graphite and much more.  

If you want to use S3 in production, you have to replace our self-signed https certificate with your own wildcard certificate. You can do this using our menu S3 Explorer and click on the bottom bar on SSL Certificate. After uploading the new SSL certificate, please restart the SSL gateways using our services view to activate it. Hint: Your SSL certificate should match the domain and all sub domains. If your domain is s3.croit-demo.io a valid certificate should include *.s3.croit-demo.io and s3.croit-demo.io.

With our goal of making all work steps as simple and convenient as possible, we have of course also set up the regular and important software updates in a simple workflow. An update of the management node for example, can be achieved, with the following commands.

docker pull croit/croit:latest
docker rm -f croit
docker run --cap-add=SYS_TIME -v /var/run/docker.sock:/var/run/docker.sock --net=host 
--restart=always --volumes-from croit-data --name croit -d croit/croit:latest

If you already have a Ceph installation and want to manage it more easily and reliably with croit, our software offers a simple takeover function. All you have to do is enter some configuration from your existing cluster in the welcome dialog and croit takes over the existing cluster. From this moment on you can start new servers easily and conveniently via network boot to extend your existing cluster.

Since the official instructions, which are often very complex and quickly lead to errors, do not meet our requirements, we offer a fully automatic upgrade system. For the upgrade from Ceph Luminous to Ceph Mimic a direct integration into our management interface was created.

• Block storage is a common paradigm.
• Traditional file systems are widely used and reliable.
• Any programming language can easily work with files.
• File permissions and limitations are enabled via the file systems.
• You can take snapshots to return to a previous state.
• Thanks to its low IO latency, it is also ideally suited for databases.
• Ideal for virtual servers.