TABLE 3-11Volume-to-LUN Terminology

Term

Description

 

 

Logical Unit

The number a host uses to access a volume on a storage array. Each

Number (LUN)

host has its own LUN address space. Therefore, the same LUN may

 

be used by different hosts to access different volumes on the storage

 

array. However, a volume can only be mapped to a single LUN. A

 

volume cannot be mapped to more than one host group or host.

 

For example, Figure 3-32 on page 3-76shows that Host KC-A may

 

access Volume Legal using LUN 2 and Host Group Omaha may

 

access Volume HResources also using LUN 2.

Default Volume-to-

During volume creation, you can specify that you want to have the

LUN mapping

software assign a LUN automatically to the volume or that you want

 

to map a LUN to the volume later. If you have the SANshare Storage

 

Partitioning feature enabled, than you should always choose to map

 

the volume later using the options in the Mappings View so that a

 

LUN is not automatically assigned to a volume during volume

 

creation. Any volumes that are given automatic (default) volume-to-

 

LUN mappings can be accessed by all host groups or hosts that do

 

not have specific volume-to-LUN mappings. These host groups and

 

hosts are shown as part of the Default Group in the Topology section

 

of the Mappings View.

Specific Volume-to-

A specific volume-to-LUN mapping occurs when you select a

LUN mapping

defined host group or host in the Topology View and select the

 

SANshare Storage Partitioning Wizard or Define Additional

 

Mapping option to assign a volume a specific LUN (volume-to-LUN

 

mapping). This designates that only the selected host group or host

 

has access to that particular volume through the assigned LUN.You

 

can define one or more specific volume-to-LUN mappings for a host

 

group or host.

 

Note The SANshare Storage Partitioning feature must be enabled to

 

create specific mappings.

 

 

Register the Volume with the Operating System

Note – IMPORTANT The hot_add utility is not available for all operating systems. Refer to the SANtricity Storage Manager Installation Guide to verify if the hot_add utility is available for your operating system and how to run this utility.

After creating all volumes and assigning volume-to-LUN mappings, the host-based hot_add utility is used to register the volume with the operating system.

Once volumes have been created and volume-to-LUN mappings have been defined, this utility is run to ensure that the operating system is aware of the newly created volumes.

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Sun Microsystems 5310 NAS manual Register the Volume with the Operating System
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5310 NAS specifications

Sun Microsystems, known for its innovative computing solutions, launched the Sun 5310 Network Attached Storage (NAS) system, which marked a significant advancement in the realm of storage solutions in the early 2000s. The 5310 NAS was designed to provide high-performance, reliable, and scalable storage tailored for enterprise environments.

One of the standout features of the Sun 5310 NAS is its file-serving capabilities, which support multiple protocols, notably NFS (Network File System) and CIFS (Common Internet File System). This dual-protocol support allowed organizations to seamlessly integrate the NAS into diverse IT ecosystems, facilitating interoperability between UNIX, Linux, and Windows systems. The enhanced file-sharing capabilities made it an ideal solution for businesses with mixed operating environments.

The Sun 5310 NAS incorporates cutting-edge technologies to ensure high availability and data integrity. The system utilized a RAID (Redundant Array of Independent Disks) technology, providing various RAID levels to protect against data loss while optimizing performance. Additionally, the device featured hot-swappable drives, enabling maintenance and upgrades with minimal downtime, a crucial factor for business continuity.

Equipped with advanced management software, the Sun 5310 NAS offered users an intuitive interface for monitoring storage health and performance. This software included comprehensive reporting functionalities that allowed IT administrators to oversee usage patterns and capacity planning efficiently.

Scalability was another defining characteristic of the Sun 5310 NAS. The system could easily expand with additional storage modules, accommodating the growing needs of an organization without the necessity for complete system overhauls. This flexibility ensured that businesses could adapt their storage solutions to meet evolving data storage needs without incurring significant costs or disruptions.

In terms of performance, the Sun 5310 NAS featured high I/O throughput achieved through its robust hardware architecture and optimized file serving capabilities. This performance baseline was crucial for organizations that relied on heavy data workloads and required rapid access to information.

In summary, the Sun 5310 NAS from Sun Microsystems embodied a forward-thinking approach to network storage, blending reliability, scalability, and multi-protocol support. Its user-friendly management software, combined with the robustness of RAID technology and hot-swappable drives, made it a preferred choice for enterprises looking to streamline their storage infrastructure while safeguarding critical data.
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