Quantum 3.5 manual Configuring Storage Devices, Planning for LUNs Larger than 1 TB

Configuring Storage Devices

Chapter 2 Installing StorNext File System

Getting Ready to Install

•Correctly configure all storage devices (see Configuring Storage Devices on page 21).

•If using LUNs larger than 1 TB, decide on a label type and install any necessary operating system patches (see Planning for LUNs Larger than 1 TB on page 21).

•(Linux only) Install the kernel source code (see Installing the Linux Kernel Source Code on page 23).

Before installing StorNext SNFS, make sure that all LUNs are visible to the MDC. (A LUN, or logical unit number, is a logical device that corresponds to one or more disks, drives, or storage devices.)

If there are any connection issues, resolve them before installing StorNext. For assistance in configuring storage devices, refer to the documentation that came with the storage device, or contact the manufacturer.

Note: LUNs that you plan to use in the same stripe group must be the same size. Consider this when configuring storage devices. (For more information about stripe groups, see the StorNext 3.5 User’s Guide.)

Caution: StorNext does not support the connection of multiple devices through fibre channel hubs. Multiple devices must be connected using fibre channel switches.

Planning for LUNs Larger than 1 TB

StorNext supports LUNs greater than 1 TB in size if they are allowed by the operating system. To enable support for 1 TB or larger LUNs, all StorNext LUNs must be correctly labeled according to the requirements of the operating system running on the MDC as well as the operating system running on all connected clients. Disk LUNs can have one of three labels: VTOC, EFI, or sVTOC (short VTOC).

Required disk LUN label settings based on operating system and LUN size are presented in Table 9. Before installing StorNext, decide what label type will be used, and then install any required operating system

StorNext 3.5 Installation Guide 21