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Atipa Capella Storage Solutions with Lustre*

The scalable storage solution that is affordable, reliable, and high performance

Lustre* Parallel File System

Data-intensive high-performance computing applications pose strong demands on storage systems to feed vast volumes of data into large-scale simulations and computational data analyses. Legacy file systems used to share data across a network, such as the Network File System (NFS), were not designed with large numbers of clients running I/O-intensive applications in mind. In present-day HPC environments, NFS servers therefore quickly become a bottleneck that can grind an otherwise optimally functioning cluster to a halt. High-performance, distributed file systems such as Lustre spread the I/O workload over many servers, eliminating single-server bottlenecks, and scaling performance with increasing number of storage servers.

Lustre provides a fast, massively scalable, parallel file system addressing the need to accelerate the performance of the most demanding, data-intensive workloads in HPC. It is the most widely adopted parallel file system in use, powering over 70% of the top 100 supercomputers in the world. The file system has been in use in production environments under the most demanding circumstances for more than a decade and has evolved into a mature, highly trusted, reliable file system for distributed computing. The Lustre architecture provides a POSIX compliant file system under a single name space and scales to thousands of clients, tens of petabytes of storage, and hundreds of gigabytes per second sustained I/O bandwidth. Production systems are running with up to 55PB of storage and achieving throughput rates of up to 2.5TB/s.

Atipa Capella with Lustre*

Atipa offers both entry-level and enterprise-level Lustre solutions at affordable prices for use in Academia, Government, and Industry.  Our Capella LZ and Capella LZE storage series both provide easily expandable, scalable storage designed from the ground up to combine the power and parallelism of Lustre with the resiliency and data integrity of OpenZFS. The Capella LZ series is our entry-level Lustre solution targeted towards users who need a fast, affordable storage solution without all the bells and whistles of an enterprise appliance. The Capella LZE is our flagship enterprise appliance equipped with high-availability features and 24/7 support in partnership with the Intel   High Performance Data Division. In addition to our reference architectures, we also offer flexible custom storage solutions designed to fit your needs.

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Capella LZ Series

The Capella LZ series storage solution is Atipa’s entry-level Lustre solution for users in need of fast scratch space with small to medium capacity, or for users looking for a proof-of-concept that Lustre will accelerate their workload. The minimum solution consists of one combined metadata/management server (MDS/MGS) and three object storage servers (OSS). Our standard configuration based on 4TB hard disk sizes provides 60TB* usable storage and up to 9GB/s I/O bandwidth in as little as 4U of rack space. Storage capacity can be expanded by using larger hard disks or by adding storage enclosures with additional hard disks. Performance and capacity are increased by adding additional object storage servers.

Key Features
  • Turn-key solution

  • Purpose-built for fast, scale-out storage

  • Copy-on-write ensures data is always consistent on disk

  • Compression

  • Deduplication

  • Online capacity expansion

  • Single global namespace

  • POSIX compliant

  • 256-bit checksum protection against silent data corruption

  • Sequential write > 9GB/s

  • Sequential read > 4GB/s

  • On-site integration by experienced engineers

Capella LZE Series

The Capella LZE series storage solution is Atipa’s flagship Lustre appliance for enterprises, including high-availability and advanced monitoring features. The starting configuration consists of one Lustre metadata/management module and one Lustre object storage module. The metadata/management module consists of a metadata server, a management server, and a metadata/management data storage enclosure. The object storage module consists of two object storage servers and one object storage data enclosure.

The metadata/management servers and the object storage servers in each module are configured as active/active failover pairs. When a module is fully functional, both servers participate in serving data at optimal performance. When a server in a failover pair fails, it’s companion transparently takes over its duties, and I/O to and from the Lustre clients continues uninterrupted, albeit with reduced performance.

The starting Capella LZE configuration provides 2.4TB of metadata storage and up to 864TB of usable Lustre storage in 12U of rack space. The modular architecture provides an easy way to scale both capacity and performance by adding additional metadata/management modules and/or object storage modules.

Key Features
  • Turn-key solution

  • High-availability configuration

  • Single global namespace

  • POSIX compliant

  • Sequential write > 15GB/s

  • Sequential read > 17GB/s

  • Compression

  • Deduplication

  • Online capacity expansion

  • Copy-on-write ensures data is always consistent on disk

  • 256-bit checksum protection against silent data corruption

  • Enterprise-class Reliability, Availability, and Serviceability

  • Ultra-dense footprint with 864TB per 8U rack space

  • On-site integration by experienced engineers

Real-Time Monitoring (optional)

All Capella Lustre solutions optionally include the Intel   Manager for Lustre (IML) management solution purpose-built by the Lustre experts at Intel   for the Lustre file system. Intel   Manager for Lustre* software reduces management complexity and costs, using an easy-to-use browser-accessible graphical user interface (GUI). The GUI dashboard lets you monitor one or more distributed Lustre file systems. Real-time storage-monitoring lets you track Lustre file system usage, performance metrics, events, and errors at the Lustre level.

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Fully-configurable color charts display a variety of real-time performance metrics for single or multiple file systems, down to individual servers and targets, and reveal metrics such as read/write heat maps, OST balance, file system capacity, metadata operations, read/write operations, job statistics, and various resource usage parameters, among others.

Service and Support

Atipa partners with Intel  , the largest contributor to Lustre software releases, to offer expert support for all Capella Lustre solutions. Atipa engineers are the central point of contact for all support tickets and take the lead in Level 0, Level 1, and Level 2 support issues. This includes, but is not limited to, assisting in collecting diagnostics information, reproducing the problem, and eliminating hardware faults. If needed, support tickets are escalated to Intel   for Level 3 support (code fixes) with a severity representing the operational impact of the reported issue. Severity 1 issues (file system is down) trigger a broadcast to the entire Intel   High Performance Data Division (HPDD) team and have a response time of less than 4 hours.

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Contact lustre@atipa.com for more information or customized configurations.