Longhorn is cloud native distributed block storage for Kubernetes, supported by Rancher Labs headquartered in Cupertino.
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Vultr
Score 5.8 out of 10
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$2.50
per month
Pricing
Longhorn Block Storage
Vultr
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Longhorn Block Storage
Vultr
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Longhorn is performing well as storage for databases and in almost any solution that uses exclusive access to volumes (ReadWriteOnce in Kubernetes nomenclature). When write access is required from many clients (ReadWriteMany) Longhorn Block Storage covers its volumes with NFS (file-based) access. Longhorn Block Storage also is well fitted in every architecture where data security (snapshots, backups, multiple replicas) is more important than access speed (in terms on IOPS and MiB/s).
Vultr is best suited to deploy classic web applications, web services, and websites. It's well suited for mid-level traffic but has a wonderful option of expanding the disk storage, making it very well suited to run applications and services that need to consume a lot of data but don't need a lot of computing power. It may not be well suited to run applications that rely on a vast number of web services and require a vast number of data centers.
ReadWriteMany Longhorn volumes are still using NFS (file-based) protocol in the core.
Using iSCSI as main protocol instead of FC ties Longhorn to Ethernet-based LAN which is in most architectures much slower that FC-based SAN.
Longhorn could implement S3 as alternative access protocol to its volumes.
Backups, and snapshots configuration could be configured at each volume-level by administrators (maybe from additional CRD object?), because currently is configured at storage-class level which is not granular enough.
Longhorn is mature software defined storage solution that is still developed and receive new functionalities. From the beginning every Longhorn volume have multiple (at least two) replicas, can leverage manual or automatic snapshots and backup to external S3 volume. Longhorn provides nice and clear GUI for administrators, but also can be managed from CLI.
GlusterFS was first Persistent Storage solution used in our Kubernetes-based clusters. It is file-based what in some usages led us to many data corruptions. CEPH is object-based persistent storage which can be used as file-based Persistent Storage in Kubernetes. It is also is much more resource-hungry than other solutions including Longhorn. Dell PowerScale (or Isilon) is a hardware-software solution, that provides volumes that can be accessed by file-based NFS and CIFS protocols. Recently was added access to its volumes with object-based S3 protocol. Longhorn is in the middle. It is block-based, it is build on industry standards like iSCSI, performs very well on 10Gbit or faster LAN and commodity hardware (or in virtual machines)
Vultr started out primarily as a VM-only provider, but has since expanded offerings and locations to be a serious alternative for a lot of businesses currently using a large, expensive cloud provider. Vultr may not be for everyone or every workload, but there are many businesses and individuals that are adding way too much complexity and cost to their projects by using large cloud platforms they do not really need. Update to review: Vultr's new Optimized Compute offerings are a game changer. They are designed to accommodate a more diverse or resource-intensive workload
