PSC PSC Networking & Host Connectivity

Question 1

Which host connectivity protocols are natively supported by Pure Storage FlashArray for block storage access?

Accepted Answer

FC, iSCSI, and NVMe-oF

Answer

FlashArray supports Fibre Channel (FC), iSCSI, and NVMe over Fabrics (NVMe-oF via NVMe/FC and NVMe/TCP) for block storage host connectivity.

Question 2

What is the default TCP port used by Pure Storage FlashArray for iSCSI target connections?

Accepted Answer

3260

Answer

iSCSI uses the well-known TCP port 3260 for target connections, which is the default on all Pure Storage FlashArray iSCSI interfaces.

Question 3

What is the recommended MTU setting for iSCSI network interfaces connecting hosts to Pure Storage FlashArray?

Accepted Answer

9000 bytes (jumbo frames)

Answer

Pure Storage recommends configuring 9000-byte jumbo frames on all iSCSI interfaces and switches to maximize throughput and reduce CPU overhead on the host.

Question 4

In Pure Storage FlashArray, what is a 'host' object used for?

Accepted Answer

Grouping WWNs or IQNs to identify a server and map volumes to it

Answer

A host object in FlashArray registers a server's FC WWNs or iSCSI IQNs (or NVMe NQNs) and is used to create volume connections that present LUNs to that host.

Question 5

What multipathing approach does Pure Storage FlashArray use to present volumes to hosts?

Accepted Answer

Active-Active symmetric (all paths are equal and active simultaneously)

Answer

FlashArray uses an active-active symmetric architecture where all paths to a volume are simultaneously active and equal, eliminating preferred-path complexity and maximizing bandwidth.

PSC - Pure Storage Certification Practice Test

PSC - Pure Storage Certification Practice Test

PSC PSC Networking & Host Connectivity