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HP0-J67 · Question #126

Refer to the exhibit. How does the cabling scheme ensure high availability for Virtual Library 2?

The correct answer is D. The medium changer is connected redundantly, and the drives, by default, are connected 50% to each port. High availability for Virtual Library 2 is achieved by redundantly connecting its medium changer to both Fibre Channel ports and distributing the virtual drives evenly across these same ports.

Architecting HP Storage Solutions for Multi-site Environments

Question

Refer to the exhibit. How does the cabling scheme ensure high availability for Virtual Library 2?

Exhibit

HP0-J67 question #126 exhibit

Options

  • AThe Virtual Tape Libraries are spread across both Fibre Channel ports and offer load balancing across
  • BThe medium changer and drives are connected redundantly to the Fibre Channel ports of the system and
  • CThe drives are presented through both Fibre Channel ports of the HP StoreOnce Backup System.
  • DThe medium changer is connected redundantly, and the drives, by default, are connected 50% to each port.

How the community answered

(36 responses)
  • A
    6% (2)
  • B
    14% (5)
  • C
    3% (1)
  • D
    78% (28)

Why each option

High availability for Virtual Library 2 is achieved by redundantly connecting its medium changer to both Fibre Channel ports and distributing the virtual drives evenly across these same ports.

AThe Virtual Tape Libraries are spread across both Fibre Channel ports and offer load balancing across

This statement is too general; while VTL components may be spread for load balancing, it doesn't specifically detail the redundant cabling for critical components like the medium changer and the distribution of drives.

BThe medium changer and drives are connected redundantly to the Fibre Channel ports of the system and

While redundancy is present, stating that drives are 'connected redundantly' isn't precise; drives are typically assigned to ports, and paths to them are redundant. The specific detail of 50% distribution is missing.

CThe drives are presented through both Fibre Channel ports of the HP StoreOnce Backup System.

This option only addresses the drives and omits the crucial redundant connection of the medium changer, which is essential for the overall high availability of a Virtual Tape Library.

DThe medium changer is connected redundantly, and the drives, by default, are connected 50% to each port.Correct

The cabling scheme ensures high availability by connecting the medium changer with redundant paths to both Fibre Channel ports (e.g., FC Port 1 and FC Port 2). Additionally, the virtual drives are, by default, load-balanced and distributed across these ports (e.g., 50% to each), ensuring that VTL operations can continue even if one Fibre Channel path or port becomes unavailable.

Concept tested: Fibre Channel VTL high availability cabling

Source: https://hpe.com/psnow/doc/c02606132.pdf

Topics

#HP StoreOnce#High availability#Virtual Library#Fibre Channel cabling

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