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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    DDN A³I

    Score9 out of 10
    N/ADataDirect Networks (DDN) offers their SFA line of high density block storage solutions, including the SFA14KX and the SFA18K.N/A

    Longhorn Block Storage

    Score10 out of 10
    N/ALonghorn is cloud native distributed block storage for Kubernetes, supported by Rancher Labs headquartered in Cupertino.N/A
    Pricing
    DDN A³ILonghorn Block Storage
    Editions & Modules
    No answers on this topic
    No answers on this topic
    Offerings
    Pricing Offerings
    DDN A³ILonghorn Block Storage
    Free Trial
    NoNo
    Free/Freemium Version
    NoNo
    Premium Consulting/Integration Services
    NoNo
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional Details——
    More Pricing Information
    Best Alternatives
    DDN A³ILonghorn Block Storage
    Small Businesses
    No answers on this topic
    No answers on this topic
    Medium-sized Companies
    No answers on this topic
    IBM Cloud Block Storage
    Score9 out of 10
    Enterprises
    No answers on this topic
    IBM Cloud Block Storage
    Score9 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    DDN A³ILonghorn Block Storage
    Likelihood to Recommend
    9.0
    (1 ratings)
    10.0
    (2 ratings)
    Usability
    -
    (0 ratings)
    10.0
    (1 ratings)
    User Testimonials
    DDN A³ILonghorn Block Storage
    Likelihood to Recommend
    DataDirect Networks (DDN)
    Well suited for large data repositories, like video storage, data lake, etc. Wide and deep and does not take up multiple racks. Easily grows with your needs as one can drop in more disks when needed, as you grow.
    Incentivized
    Read full review
    SUSE
    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).
    Read full review
    Pros
    DataDirect Networks (DDN)
    • Large storage array
    • Fibre channel storage using RAID arrays
    • Each SFA can grow with one master and up to 4 slaves
    • Up to PB or more of storage
    Incentivized
    Read full review
    SUSE
    • Creates read-write many (RWX) volumes
    • Longhorn Block Storage is an easy to deploy solution
    • Scheduled and on-demand volume snapshots can be created using web GUI
    • Volume backups can be stored offsite on any S3 compatible storage solution
    • Backups and snapshots can be restored using web GUI
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    Cons
    DataDirect Networks (DDN)
    • The Disk array appliances load disks from the top
    • Cabler management is more than 4 feet long. Hard to find a rack it really fits in.
    • Interconnects between units need to be more seamless and easier to understand.
    Incentivized
    Read full review
    SUSE
    • 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.
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    Usability
    DataDirect Networks (DDN)
    No answers on this topic
    SUSE
    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.
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    Alternatives Considered
    DataDirect Networks (DDN)
    IBM is close to the Platinum level but DDN comes in large and cheaper but with a bit less features.
    Incentivized
    Read full review
    SUSE
    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)
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    Return on Investment
    DataDirect Networks (DDN)
    • ROI is that it seems very economical for massive video camera storage.
    • Dedicate a rack to it.
    • Best if all units are next to each other but do not have to be.
    Incentivized
    Read full review
    SUSE
    • It has provided a highly available storage solution for almost all our Kubernetes deployments
    • We can deploy new app versions with peace in mind because we have working data backups
    • Application development is faster because devs can play with data and easily restore it when needed
    Read full review
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