ATTO Technology Frequently Asked Questions

Answers to common technical and purchasing questions about ATTO Technology’s storage connectivity and networking solutions. Topics include choosing protocols, managing latency, extending existing infrastructure, supporting AI and media workloads, and improving performance in enterprise environments.

 

Choosing Storage Connectivity

1. How do I choose between Fibre Channel and Ethernet for storage networking?

Fibre Channel is purpose-built for storage area networks and delivers highly predictable low-latency performance. Ethernet offers flexible IP-based networking that can carry storage traffic (including iSCSI and NVMe-over-Fabrics) along with general network traffic. The choice depends on latency needs, existing infrastructure, and whether storage must share the network with other applications.

2. When should I use a Thunderbolt adapter instead of an internal host bus adapter?

Thunderbolt adapters such as ATTO ThunderLink are used when a workstation or laptop (including modern Mac systems) does not have internal Fibre Channel, high-speed Ethernet, or SAS connectivity. They enable high-performance access to shared enterprise storage from Thunderbolt ports.

3. Is Fibre Channel still relevant for modern infrastructure?

Yes. Fibre Channel continues to be used where consistent low latency, high bandwidth, and reliable shared storage access are required, including media production, enterprise data centers, and certain AI and high-performance computing environments.

4. What storage connectivity technologies does ATTO offer?

ATTO provides Celerity Fibre Channel host bus adapters, FastFrame Ethernet SmartNICs, ExpressSAS SAS/SATA HBAs, ExpressNVM NVMe switch host adapters, ThunderLink Thunderbolt adapters, XstreamCORE intelligent bridges, the SiliconDisk DRAM-based storage appliance, and ATTO360 management software.

5. What is ATTO Technology’s role in enterprise storage infrastructure?

ATTO develops high-performance storage connectivity, networking, and data-movement technologies that improve communication between servers, workstations, and storage systems. These solutions are used both in new infrastructure deployments and technology refreshes, as well as to modernize and extend existing environments through reliable, low-latency connectivity and efficient data movement.

 

Extending and Modernizing Infrastructure

6. Why do organizations extend existing infrastructure instead of replacing it?

Replacing storage infrastructure can increase cost, operational risk, migration effort, and downtime. Many organizations instead modernize existing environments by improving connectivity, expanding shared storage, or adding protocol translation while preserving proven infrastructure and established workflows.

7. How can I modernize storage infrastructure without a full replacement?

Intelligent bridges and high-performance adapters make it possible to add sharing, protocol conversion, remote access, or higher-speed connectivity to existing storage investments. This approach extends the useful life of existing infrastructure while improving performance, flexibility, and return on previous infrastructure investments.

8. How can I expand storage without replacing my existing SAN?

ATTO XstreamCORE intelligent bridges present SAS storage, RAID systems, and tape libraries as Fibre Channel or Ethernet resources. This enables capacity expansion and shared access while preserving existing SAN architectures and host workflows.

9. Can SAS storage be integrated into a Fibre Channel or Ethernet network?

Yes. XstreamCORE bridges present SAS devices as native Fibre Channel or Ethernet (iSCSI/iSER) block storage, enabling shared access and protocol integration while preserving performance, existing workflows, and storage management practices.

10. When should an organization use an intelligent bridge?

An intelligent bridge is appropriate when the goal is to share direct-attached SAS storage, connect tape libraries over Ethernet, integrate different storage protocols, or scale capacity without adding new servers or replacing existing arrays.

 

Improving Performance and Latency

11. Why is latency more important than peak throughput?

Peak throughput measures maximum speed under ideal conditions. Latency measures how long data takes to become available after a request. Consistent low latency keeps GPUs, CPUs, and workstations from waiting on storage, which often has greater real-world impact than theoretical peak bandwidth.

12. What is Advanced Data Streaming (ADS)?

Advanced Data Streaming is ATTO’s latency-management technology. It regulates data movement to maintain consistent throughput during sustained high-bandwidth workloads, prioritizing predictable real-world performance over peak benchmark numbers.

13. What is xCORE?

xCORE is ATTO’s hardware-acceleration architecture for storage I/O. It processes data movement in dedicated hardware to deliver efficient, low-latency performance.

14. Why do enterprise environments use host bus adapters instead of standard network adapters?

Host bus adapters are designed specifically for storage traffic. They provide the low latency, high reliability, and protocol features required for storage area networks and shared storage environments, whereas standard network adapters are optimized for general IP networking.

15. How does ATTO help reduce storage bottlenecks?

ATTO combines hardware acceleration, latency-management technologies such as ADS, multipathing, and intelligent management tools to help keep data moving efficiently between compute and storage while minimizing CPU overhead and maintaining predictable performance under sustained workloads.

 

AI and High-Performance Workloads

16. How does storage connectivity affect AI training and inference?

AI workloads depend on sustained high-bandwidth, low-latency access to large datasets. When storage cannot keep pace, GPUs and CPUs sit idle waiting for data. Connectivity that manages latency and maintains consistent throughput helps keep accelerators utilized.

17. How do ATTO products support AI infrastructure?

ATTO Fibre Channel HBAs, NVMe adapters, Ethernet adapters, and XstreamCORE bridges provide the high-performance, low-latency data paths needed between servers, storage, and accelerators in AI and machine-learning environments.

 

Media and Creative Workflows

18. How do editors connect Thunderbolt workstations to shared Fibre Channel or Ethernet storage?

ATTO ThunderLink adapters convert Thunderbolt ports on workstations and laptops into Fibre Channel, Ethernet, or SAS connectivity. This allows creative systems to access the same high-performance shared storage used in collaborative post-production environments.

19. What ATTO solutions are commonly used in media production?

Celerity Fibre Channel HBAs, ThunderLink Thunderbolt adapters, FastFrame Ethernet adapters, and related software support collaborative editing, color grading, rendering, and shared storage workflows for high-resolution content.

 

Technology and Management

20. What is ATTO360 software?

ATTO360 is ATTO’s management platform. ATTO360 Storage supports configuration, firmware management, monitoring, optimization, and multipathing for Fibre Channel, SAS, and NVMe adapters. ATTO360 Networking provides tuning, monitoring, firmware management, and analytics for FastFrame Ethernet SmartNICs and compatible ThunderLink adapters.

21. What is MultiPath Director?

MultiPath Director is ATTO’s multipathing technology that provides failover and load balancing across multiple paths between hosts (Windows, macOS, and Linux) and storage systems, improving availability and performance.

 

Selection, Virtualization, and Support

22. How can I improve storage performance in VMware or Hyper-V environments?

High-performance Fibre Channel or Ethernet adapters with multipathing support, combined with proper configuration and management tools, help deliver consistent low-latency storage access for virtualized workloads and improve overall system efficiency.

23. Which ATTO product is most appropriate for my environment?

Selection depends on the required protocol, latency and bandwidth needs, whether existing storage must be shared or bridged, application requirements, and management requirements. Fibre Channel HBAs and ThunderLink adapters are commonly used for shared SAN access; XstreamCORE bridges extend or share SAS storage; ExpressNVM targets NVMe environments; and FastFrame adapters support high-speed Ethernet.

24. Where can I find documentation, drivers, and software?

Technical documentation, manuals, firmware, drivers, and software downloads are available in the Support and Resources sections of atto.com.