500-174 Sample Questions & Answers

RAID-TEC (Triple Erasure Coding) is NetApp's implementation of triple-parity RAID. It can withstand up to three simultaneous disk failures within a RAID group, providing the highest level of data protection available in ONTAP. It is recommended for large capacity drives where rebuild times are longer.

QoS System Classes in UCS Manager are used to define policies for different types of traffic (e.g., Fibre Channel, iSCSI, and user-defined classes). By creating a QoS policy and assigning it to a vNIC used for rendering traffic, an administrator can set a specific weight or priority, guaranteeing it a percentage of the available bandwidth, while other classes like management can be left at the default best-effort level.

This is the most common cause for this symptom. iSCSI connectivity relies on the storage array recognizing the host's initiator IQN and having it mapped to the LUNs. If the IQNs were accidentally removed from the igroup that is mapped to the LUNs, the NetApp array would no longer present the LUNs to those hosts, even if network connectivity is perfect. This can happen during maintenance if configurations are reverted or incorrectly modified.

To integrate a C-Series rack server into a UCS domain managed by UCS Manager, it must be equipped with a Cisco Virtual Interface Card (VIC). The VIC's ports are then directly cabled to the Fabric Interconnects. This connection carries both data and management traffic, allowing UCS Manager to discover, inventory, and fully manage the server using Service Profiles.

This is the ideal combination. A NetApp All-Flash FAS (AFF) system provides the extremely low latency and high IOPS required for demanding database workloads. A hybrid NetApp FAS system (with a mix of SSD and HDD) offers a cost-effective and scalable solution for file storage like home directories, where performance is less critical than capacity and cost per GB. Both run ONTAP, simplifying management.

The vPC Peer-Keepalive link's sole purpose is to act as a heartbeat between the two vPC peer switches. It allows each switch to verify that its peer is alive. If the Peer-Link goes down but the keepalive is still up, the vPC secondary switch will shut down its vPC member ports to prevent a split-brain scenario where both switches become active.

The correct location for managing the pool of IP addresses used for out-of-band KVM access to the blades' CIMCs is under the Admin tab. The specific policy is called 'Management IP Pool'. Here, an administrator can create blocks of IPv4 addresses that will be assigned to servers as they are discovered and associated.

Cisco VICs have a maximum number of virtual interfaces they can support. If a Service Profile defines more vNICs and vHBAs than the physical adapter on the blade can create, UCS Manager will be unable to allocate the required resources, and the association will fail. This is a common issue when moving a complex Service Profile to a server with a less capable adapter.

This is the correct sequence. 1) snapmirror update performs a final incremental data transfer. 2) snapmirror quiesce stops future scheduled transfers. 3) snapmirror break makes the destination volume read/write and severs the replication relationship. 4) snapmirror delete on the destination and snapmirror release on the source are then used to clean up the relationship metadata after the cutover is complete and validated.

UUID Suffix Pools provide a range of unique identifiers for the server hardware, which is critical for hypervisors and management tools to uniquely identify the virtual server.

World Wide Port Name (WWPN) Pools are used to assign unique addresses to virtual Host Bus Adapters (vHBAs), allowing them to log into the Fibre Channel fabric.

MAC Pools contain a range of MAC addresses that are assigned to virtual Network Interface Cards (vNICs) to ensure unique Layer 2 identities on the network.