Storage Network

An engineer is configuring a Fibre Channel over Ethernet (FCoE) SAN. Which statement about FCoE Initialization Protocol (FIP) is true?

A storage administrator needs to ensure that a Fibre Channel zone configuration is operationally effective without disrupting the current active zone set. Which approach should be used?

A data center deployment uses NPV mode on a Cisco MDS switch to connect to a core Fibre Channel switch. After configuration, the NPV switch does not register with the core. What is the most likely cause?

An engineer is tuning performance for a storage network. Which two practices improve FC SAN performance?

Which FCoE component is responsible for encapsulating Fibre Channel frames into Ethernet frames?

A SAN administrator notices intermittent connectivity issues between an initiator and target. The Fibre Channel link shows CRC errors. What is the most likely cause?

In a Cisco UCS environment, which component provides the Fibre Channel connectivity to the SAN switches when using FCoE?

Which of the following is a required characteristic of an FCoE SAN?

An engineer is designing a SAN for a virtualized environment. Which two best practices should be followed for Fibre Channel zoning?

A Fibre Channel switch is experiencing high latency on a specific ISL. The link is operating at 16 Gbps and has high utilization. Which action will most likely reduce latency?

What is the purpose of NPIV (N_Port ID Virtualization) in a Fibre Channel SAN?

An engineer is configuring a storage network with FCoE and must ensure that the FCoE traffic does not interfere with standard LAN traffic. Which two mechanisms should be implemented?

Which of the following is a benefit of using Fibre Channel over Ethernet (FCoE) in a data center?

An administrator needs to configure a Fibre Channel SAN to support two separate departments that must not see each other's storage. Each department has its own set of initiators and targets. Which technology should be used?

In a Cisco MDS switch, what is the effect of the command 'fcdomain restart vsan 100'?

A medium-sized enterprise has a Cisco UCS environment with two Fabric Interconnects (FIs) in a cluster. There are 10 blade servers, each with a VIC 1340 adapter. The SAN consists of two MDS 9148S switches in a VSAN for storage. Each server is configured with two vHBAs (primary and secondary) connecting to the SAN via the FIs. Recently, after a firmware upgrade on the MDS switches, several servers are unable to boot from SAN. The storage administrator confirms that the storage array LUNs are accessible from the MDS switches. The UCS administrator reports that the vHBAs show a 'link down' status on the FI. Which action should be taken to resolve the issue?

A large financial institution operates a dual-fabric Fibre Channel SAN with two separate MDS 9710 directors. Each fabric has multiple storage arrays and hundreds of hosts. The SAN is configured with VSANs to isolate different environments (production, development, backup). Recently, the backup VSAN has been experiencing slow performance during backup windows. Analysis shows that the ISLs between the directors in the backup VSAN are heavily utilized (near 100%) while other ISLs have spare capacity. The backup traffic consists of large sequential reads and writes. The SAN administrator has confirmed that there are no CRC errors or link issues. The backup VSAN uses a single 16 Gbps ISL. Which of the following is the best solution to improve backup performance?

A storage administrator reports that a host cannot reach any of the targets on a Cisco MDS 9000 Series switch. The VSAN configuration is correct, and all interfaces are up. Which two commands should be used to verify the Fibre Channel name server database and zoning configuration?

A Cisco MDS switch is configured for NPV mode. An upstream NPIV-enabled switch is connected. The administrator notices that the NPV switch is not logging in to the NPIV switch. The NPV switch shows the following: 'show npv status' indicates NPV is enabled but no traffic. Which three conditions could cause this issue?

A storage network engineer is designing a Fibre Channel SAN with two Cisco MDS switches in a single VSAN. The design requires that if one switch fails, the storage traffic continues to flow without manual intervention. Which two technologies should be implemented?

An engineer is troubleshooting a performance issue on a Cisco MDS 9700 switch. The 'show interface fc1/1' output shows CRC errors incrementing slowly. The interface is connected to a storage array. Which two actions should the engineer take to resolve the issue?

Refer to the exhibit. The interface fc1/1 is configured as an E_port. The connected switch also has an E_port configured. However, the interface shows an 'init' state. What is the most likely cause?

Refer to the exhibit. An engineer sees this error on a Cisco MDS switch. What is the best action to resolve the issue?

Refer to the exhibit. After applying this configuration, the engineer activates the zoneset with 'zoneset activate name ZONESET1 vsan 10'. The host with pwwn 10:00:00:00:c9:aa:bb:01 can communicate with the target with pwwn 10:00:00:00:c9:aa:bb:02. However, the host reports that it cannot see a third target with pwwn 10:00:00:00:c9:aa:bb:03. What is the most likely reason?

A Cisco MDS switch is connected to a Fibre Channel storage array and a host. The host cannot see the storage LUNs. The 'show flogi database' command on the MDS shows the host's WWPN, but the 'show fcns database' does not show the storage target. What is the most likely cause?

A company has two Cisco MDS 9700 switches in a dual-fabric SAN. Each fabric has its own set of storage arrays and hosts. The company wants to enable selective communication between specific devices in Fabric A and Fabric B without merging the fabrics. Which Cisco technology should be used?

A storage administrator reports that an FC initiator cannot log in to the SAN. The FC switch shows the following on the interface connected to the initiator: 'VSAN 100, State: Offline'. Which action should be taken to resolve the issue?

A data center engineer is designing a storage network for a virtualized environment with 100 hosts and 50 storage arrays. Each host requires 4 Gbps of bandwidth to storage, and each storage array provides 8 Gbps. All devices use 16 Gbps FC links. What is the minimum number of 16 Gbps FC links required to support the total bandwidth demand without oversubscription?

A network engineer is troubleshooting a slow backup performance between a backup server and a tape library connected via FC. The backup server is connected to a Cisco MDS switch at 8 Gbps, and the tape library is connected at 4 Gbps. The backup job is using hardware compression. Which factor is most likely limiting performance?

A company is deploying FCoE in their data center. The design includes a Cisco Nexus 9000 switch with FEX modules. The storage team insists on using dedicated FCoE VLANs. Which best practice should be followed to ensure lossless behavior for FCoE traffic?

Which TWO statements about NPV (N_Port Virtualization) mode in FC networks are correct?

A Cisco MDS switch has the above configuration on two 16 Gbps FC interfaces. An engineer connects an initiator to fc1/2 and a target to fc1/1. The initiator cannot discover the target. What is the most likely cause?

A large enterprise is deploying a new storage network for a VMware vSphere cluster with 200 VMs. The cluster uses vSphere 7 with vVols and requires a SAN that supports 16 Gbps FC. The storage team wants to use a Cisco MDS 9148S switch and has configured two VSANs: VSAN 100 for production and VSAN 200 for backup. The backup server is connected to VSAN 200. After the deployment, the backup administrator reports that backup jobs from the backup server to the storage array are failing. The storage array is connected to both VSANs via a single FC interface configured in 'auto' mode. The backup server is connected to an F-port in VSAN 200. The storage array's interface shows 'trunking' enabled and is in 'up' state. What is the most likely cause of the backup failure?

Sequence the steps for configuring OSPF on a Cisco Nexus switch in a data center fabric.

Sequence the steps to configure a Cisco UCS Fabric Interconnect (FI) for the first time.

Sequence the steps to configure a VXLAN with BGP EVPN on a Cisco Nexus switch.

Match each Cisco NX-OS feature to its description.

Match each Cisco storage protocol to its characteristic.

Match each Cisco data center automation tool to its primary use.

A storage administrator reports that a new host cannot log into the SAN. The host is connected to a Cisco MDS switch. The switch interface shows up/up but the host is not in the active zone. What is the most likely cause?

A Cisco MDS switch is configured with two VSANs. Hosts in VSAN 1 cannot communicate with hosts in VSAN 2. What is the most likely reason?

An engineer is troubleshooting a SAN performance issue. The MDS switch shows high CRC errors on an F port. The host is connected via a 16 Gbps FC link. The errors increase when the host sends large I/O. What is the most likely cause?

Which feature allows a Fibre Channel switch to use multiple links between two switches as a single logical link?

A storage administrator needs to monitor traffic between two specific storage arrays without causing any disruption. Which approach should be used?

An engineer is configuring FCoE on a Cisco Nexus 5000 switch. The switch connects to a Fibre Channel storage array. The FCoE Initialization Protocol (FIP) snooping must be enabled. What is the effect of enabling FIP snooping?

A Cisco MDS switch is configured in NPV mode. A host connected to this switch fails to log into the SAN. Which command should be used to verify the host's FLOGI status?

A storage administrator wants to ensure that only designated initiators can access a specific target in a Fibre Channel SAN. Which mechanism enforces this policy?

An engineer is designing a SAN to connect hosts to two storage arrays for redundancy. The hosts are dual-attached to two MDS switches. Each storage array has two controllers, each with a single FC port. The engineer wants to avoid a single point of failure and ensure that each host can reach both storage controllers. Which design should be used?

Which TWO of the following are characteristics of NPV (N-Port Virtualization) in a Cisco MDS fabric?

Which TWO of the following are valid methods to recover from buffer credit loss on a Fibre Channel link?

Which THREE of the following are required to configure FCoE NPV on a Cisco Nexus switch?

Refer to the exhibit. A new host is connected to interface fc1/3. It is not appearing in the flogi database. The switch is in NPV mode. What is the most likely reason?

Refer to the exhibit. An engineer notices that traffic is not load-balanced across all four links. What is the most likely cause?

Refer to the exhibit. A host with WWPN 10:00:00:00:c9:29:3b:23 can only see its own WWPN but not the target. What is the likely cause?

An engineer notices that a Fibre Channel link between two Cisco MDS 9000 series switches is flapping every few minutes. The interface counters show a high number of CRC errors. What is the most likely cause of this issue?

A data center engineer is designing a Fibre Channel SAN for high availability. The design includes two MDS 9710 directors connected to multiple storage arrays. Which best practice should be followed when configuring NPV mode on the switches connecting the hosts?

A storage administrator is troubleshooting FCoE performance issues between a Cisco UCS FI and a storage array. The fabric is configured with FIP snooping and DCB. The administrator checks the FCoE interface counters and sees many dropped frames due to 'no buffer space'. What is the most likely root cause?

A server administrator reports that a newly provisioned application server cannot access its LUN on the storage array. The SAN zoning uses WWPNs. The administrator verifies that the server's HBA WWPN is correctly zoned with the storage port's WWPN. Which additional check should the engineer perform to isolate the issue?

An engineer needs to design a resilient Fibre Channel SAN that eliminates single points of failure between two MDS switches and a storage array with two controllers. What is the minimum number of FC port channels required to achieve this goal?

A company is deploying a multi-tenant environment with several virtualized hosts using NPIV. Each virtual machine requires its own WWPN. During testing, some VMs cannot log into the SAN. The MDS switch logs show 'FLOGI rejected: no available resources'. What is the most likely cause?

A storage engineer is planning to migrate from an existing 2 Gbps Fibre Channel fabric to a new 16 Gbps fabric while maintaining connectivity during the cutover. The legacy and new switches are connected via ISL and use the same VSAN. What is a best practice to ensure a seamless migration?

During an FCoE deployment, the server team reports that hosts can reach the storage array but performance is intermittent with periodic timeouts. The network team sees no errors on the FCoE VLAN. The DCB configuration on the upstream switch shows that PFC is enabled for CoS 3. What should the engineer check next?

A company is deploying a new storage array with dual controllers. Each controller has two 16 Gbps Fibre Channel ports. The engineer wants to connect each controller to two separate MDS switches for redundancy. What is the recommended port type configuration on the MDS switches for the storage-facing ports?

Which TWO of the following Fibre Channel port types are used to connect end devices such as hosts or storage?

Which THREE of the following are required for a successful FCoE deployment on a Cisco MDS switch?

Which THREE of the following are best practices for Fibre Channel zoning on Cisco MDS switches?

Refer to the exhibit. A server connected to interface fc1/3 on the MDS switch cannot log in to the fabric. The server's HBA WWPN is 10:00:00:00:c9:2b:1a:62. What is the most likely reason for the login failure?

Refer to the exhibit. A server with WWPN 10:00:00:00:c9:2b:1a:5f is zoned to two storage ports in zone Server1_Storage1 and to one storage port in zone Server1_Storage2. The server can access the LUNs through the first zone but not through the second. What is the most likely cause?

Refer to the exhibit. An engineer is troubleshooting poor FCoE performance. The exhibit shows output from the FCoE interface. Which observation indicates a potential issue?

An engineer notices that the LED of an FC interface is off on a Cisco MDS switch. The interface is up/up. What is the most likely cause?

A storage administrator needs to configure zoning while minimizing administrative overhead and allowing multiple initiators to access multiple targets without having to change zones when new members are added. Which zoning approach is best?

A Cisco MDS switch is configured as an NPV switch to connect to a core switch. Which statement about NPV operation is true?

An engineer needs to create a VSAN on a Cisco MDS switch with VSAN ID 50. Which command correctly creates the VSAN?

In an FCoE deployment, a storage administrator needs to ensure that FCoE traffic is carried over a dedicated VLAN. Which configuration is required on a Cisco Nexus switch?

On a Cisco MDS 9700, an engineer configures an FC port channel with 4 member interfaces. The connected storage array also supports port channels. Which load-balancing algorithm provides the best distribution of I/O when the array uses multiple LUNs per target?

Which Fibre Channel frame field is used to identify the upper-layer protocol being carried?

An engineer is configuring intelligent zoning and wants to use device aliases to simplify zone membership. What is a characteristic of device aliases compared to zone aliases?

During a fabric reconfigure event, which behavior is expected if all switches are running the same Cisco SAN-OS version and have the same domain ID configuration?

Based on the exhibited output, what can be concluded about the fabric?

Based on the exhibited FLOGI database, what is the state of the interface fc1/1?

Based on the exhibited output, what is the status of the interface?

Which TWO commands are used to verify Fibre Channel connectivity issues on a Cisco MDS switch? (Choose two.)

Which THREE factors should be considered when designing an FCoE SAN to avoid traffic loss? (Choose three.)

Which TWO statements about NPV configuration on a Cisco MDS switch are true? (Choose two.)

A storage administrator notices that a Fiber Channel link between a server and a Cisco MDS switch is flapping every few minutes. The server's HBA and the switch port are both configured for 16 Gbps. Which action is most likely to resolve the issue?

In a Fibre Channel SAN, a technique is used to allow multiple initiators to share a single physical FC port by assigning multiple N-port IDs. What is this technique called?

An organization uses FCIP to extend their SAN between two data centers over a 100 Mbps WAN link with 80 ms latency. The storage traffic includes large sequential writes. Which statement best describes the benefit of enabling compression on the FCIP tunnel?

A network engineer is deploying FCoE in a top-of-rack design. Which statement about the required lossless Ethernet fabric is correct?

A storage team is implementing zoning in a Fibre Channel fabric. They want a method where zone members are identified by their World Wide Port Name (WWPN) and the fabric enforces access based on that, without relying on switch port information. Which type is this?

In a Fibre Channel SAN, flow control is managed by buffer credits. Which statement about buffer credits is accurate?

A company wants to consolidate multiple physically separate Fibre Channel SANs into one switch infrastructure while keeping each SAN's traffic isolated. Which technology best achieves this?

In a multipath Fibre Channel SAN, which component is responsible for selecting the active path for I/O operations?

A Cisco MDS switch is configured with fabric binding to restrict which switches can join the fabric. A new switch is added, but it fails to establish an E-port connection. What is the most likely cause?

Which TWO of the following are best practices when interconnecting two Cisco MDS 9700 directors via Fibre Channel ISLs?

A team is configuring FCoE on a Cisco Nexus switch. Which TWO steps are mandatory to establish a lossless FCoE link?

Which THREE statements accurately describe FCIP (Fibre Channel over IP) configurations on Cisco MDS switches?

A Fibre Channel switch port is experiencing a high number of CRC errors. Which action should be taken to resolve this issue?

Which feature allows a single Fibre Channel port to log in with multiple N-port IDs, enabling a host to connect to multiple targets through one port?

An engineer is designing a SAN for a virtualized environment with 20 hosts and 4 storage arrays. Each host requires a separate zone per storage array for security. What is the minimum number of zones required?

An MDS switch is configured with VSANs 100 and 200. The engineer wants to isolate traffic between two storage arrays on the same physical fabric. Which best practice should be applied?

Which statement about Fibre Channel buffer credits is true?

A storage administrator notices that a host is unable to see a LUN after zoning is configured. The zone contains the host WWPN and the target WWPN. The LUN is not masked at the storage array. What is the most likely cause?

Which FCoE feature allows multiple VLANs to be carried over a single physical link when using FIP snooping?

An engineer is troubleshooting a SAN performance issue. The show interface counters command shows high output discard counts on a particular Fibre Channel interface. What is the most likely cause?

A company is deploying a new SAN with two MDS 9148S switches in a single VSAN. They want to ensure that a failure of one switch does not affect storage traffic. Which technology should be implemented?

Which TWO statements about Fibre Channel zoning are correct? (Choose two.)

Which THREE factors should be considered when calculating the required number of buffer credits for a long-distance Fibre Channel link? (Choose three.)

Which TWO statements about NPV (N_Port Virtualization) are correct? (Choose two.)

A Fibre Channel switch port is experiencing high latency due to insufficient buffer credits. What is the most likely cause?

An administrator notices that a new server connected to a Fibre Channel switch cannot log in. The 'show flogi database' command does not show the server's WWPN. What is the most likely cause?

A data center uses FCoE on Nexus 9000 switches. The storage team reports inconsistent performance during peak times. Queuing drops are seen on the FCoE-enabled interfaces. Which QoS configuration change would best address the issue?

An engineer needs to isolate storage traffic for different departments using Fibre Channel switches. Which technology should be used?

A data center uses NPV to connect edge switches to a core Fibre Channel switch. The edge switches report that some servers cannot log in. What is a likely cause?

An iSCSI SAN is experiencing performance issues. The storage array and initiators are connected via a dedicated VLAN. The network team notices high jitter. What is the most effective mitigation?

An NFS client is unable to write to a mounted export. The client can read files. What is the most likely cause?

A Fibre Channel fabric has multiple initiators and targets. The engineer wants to ensure that only specific hosts can access specific storage volumes. Which zoning practice is most secure?

An FCoE link between a Nexus switch and a storage array fails to come up. The switch is configured as an FCF. The administrator runs 'show interface ethernet 1/1' and sees the interface is up/up. Which command will most likely reveal the root cause?

Which TWO benefits does NPIV (N_Port ID Virtualization) provide in a Fibre Channel SAN? (Choose two.)

Which THREE conditions can cause Fibre Channel buffer credit starvation? (Choose three.)

Which TWO are required for FCoE communication on a Nexus switch configured as an FCF? (Choose two.)

A storage administrator notices that a newly deployed Fibre Channel initiator cannot log in to the SAN switch. The switch is configured for NPV mode. Which condition is most likely causing the issue?

An engineer is designing a SAN extension over a WAN link using FCIP. The link has high latency (50 ms RTT). Which configuration is most critical to maintain performance?

During a SAN migration, an engineer connects new storage to an existing MDS switch. The new storage array is configured with WWPNs that were previously used by decommissioned servers. After zoning is updated, some servers fail to see the correct LUNs. What is the most likely cause?

An administrator wants to ensure that a specific initiator can only access a single target LUN. Which zoning approach satisfies this requirement?

A storage network engineer notices high buffer credit starvation counters on an inter-switch link. What is the most effective solution to reduce this issue?

An engineer is troubleshooting a SAN that uses FCoE. The FCoE Initialization Protocol (FIP) discovery phase is failing for one server. The server is connected to a Cisco Nexus switch configured for FCoE. Which command should be checked first?

A data center architect is designing a SAN with two MDS switches using VSANs. Which method ensures traffic isolation between departments while allowing sharing of a tape library?

A storage administrator configures a new Cisco MDS switch and enables NPV mode. However, the upstream switch shows the NPV switch as an end device instead of a switch. What is the most likely reason?

During a SAN performance analysis, a Fibre Channel link shows a high number of CRC errors. The link operates at 16 Gbps over a 10 km dark fiber. Which corrective action is least likely to resolve the issue?

Which TWO conditions require the use of NPIV in a Fibre Channel SAN? (Choose two.)

Which THREE factors must be considered when implementing FCIP for SAN extension over a WAN? (Choose three.)

Which TWO commands are used to verify zoning configuration on a Cisco MDS switch? (Choose two.)

Refer to the exhibit. The interface shows CRC errors. What is the most likely cause of these errors?

A large enterprise data center has a disaster recovery site 100 km away. The SAN uses two MDS 9700 series switches at each site, connected via a dedicated dark fiber. Each link operates at 16 Gbps with a round-trip time of 2 ms. Recently, backup jobs to the remote storage array have been failing with timeout errors. The backup server is local to Site A, but the backup target is in Site B. The link utilization never exceeds 40%, and no errors are reported on the interfaces. The engineer suspects the issue is related to buffer credits. The current buffer credit count on the ISL is 16. The engineer calculates that for 16 Gbps over 100 km (2 ms RTT), they need at least 200 credits to maintain full throughput. Which action is most appropriate to resolve the issue?

A small business SAN consists of a single Cisco MDS 9148S switch with 16 Gb Fibre Channel ports. The storage array has four active paths to the switch, and four servers each have two HBAs. The administrator wants to ensure that all paths are utilized and that no single point of failure exists. Currently, all devices are in a single VSAN and zoning is permissive (default deny). After powering on all devices, the administrator notices that the storage array only logs in on two of its four ports. The other two ports show 'no light'. The switch has not been configured with any port settings. What is the most likely cause?

A company is deploying a new storage network using Cisco MDS 9700 switches. They have multiple host servers and storage arrays. The security policy requires that each host can only access its own LUNs. The solution must be efficient and not require reconfiguration when new hosts are added. Which approach best meets these requirements?

An engineer notices that the CPU utilization on a Cisco Nexus 5548UP switch is consistently above 80%. The switch is used for FCoE storage traffic. Which action is most likely to reduce CPU utilization?

A storage network using Cisco MDS 9700 switches has two VSANs (100 and 200). The engineer wants to share a physical ISL between both VSANs while maintaining traffic isolation. Which feature should be used?

An administrator is troubleshooting a performance issue in an FC SAN. The initiator and target are in the same VSAN. The link is 16 Gbps but throughput is only 4 Gbps. The engineer checks the BB_Credit utilization and sees a high count of BB_Credit zero. What is the most likely cause?

An engineer needs to connect a new server to an existing FC SAN. The server is located 50 km away from the data center. Which technology should be used to extend the FC SAN over this distance?

Which TWO of the following are benefits of using Smart Zoning in Cisco MDS switches?

Which THREE factors should be considered when sizing buffer credits for a long-haul FC link?

Which TWO of the following are valid methods to configure zoning in a Cisco MDS 9000 series switch?

A data center uses a Cisco MDS 9710 director with multiple line cards. The storage network includes several host servers connected to the director via 16 Gbps FC connections. Recently, the engineering team deployed a new storage array that supports 32 Gbps FC. To take advantage of the higher speed, they upgraded the host HBAs to 32 Gbps. However, after the upgrade, some hosts are experiencing intermittent connection drops. The team notices that when a host disconnects, it takes approximately 30 seconds to reconnect. The link lights on the host and switch ports are green. The switch logs show 'VSAN 100: Port fc1/1 is down (link failure)' messages. No other errors are reported. The MDS line cards support 32 Gbps, and the ports are configured with the 'speed 32000' command. What is the most likely cause of the intermittent drops?

A large enterprise uses Cisco Nexus 5548UP switches in FCoE mode. The storage array is connected via native FC to an MDS 9700. The FCoE switches are connected to the MDS via FC uplinks. Recently, the storage team deployed a new FCoE initiator that requires access to a specific LUN. After configuring the zone and VSAN, the initiator cannot discover the target. The zone includes the pWWN of the target and the FCoE initiator's pWWN (derived from its MAC address). The initiator is in VSAN 100, and the target is in the same VSAN. The MDS show flogi database shows the initiator. The show fcoe database on the Nexus shows the initiator but the session is not active (state: FIP-VN_Port not logged in). The engineer checks the FIP snooping policy and notices that the FCoE VLAN to VSAN mapping is correct. What is the most likely issue?

A small business has a Cisco MDS 9148S switch with a single fabric. Two hosts are connected to ports fc1/1 and fc1/2, and a storage array is connected to ports fc1/3 and fc1/4. The administrator wants to ensure that each host can only see its own assigned LUNs on the array. They have configured a zone for each host containing the host pWWN and the target pWWN for the respective LUNs. However, Host A is able to see Host B's LUNs. What is the most likely cause?

An organization has four Cisco MDS 9700 directors connected in a full-mesh topology. They use VSANs to separate production, backup, and management traffic. The backup VSAN is experiencing high latency and occasional timeouts. The engineer runs the 'show fcspf routes' command and notices that the path from the backup host to the backup target has an uneven hop count across different paths. The links are all 16 Gbps. The engineer also notes that the backup target is connected to a different director than the backup host. Which action is most likely to improve performance?

A large data center uses a Cisco Nexus 9000 switch with FCoE NPV feature. The switch is connected to an MDS 9700 upstream. The network team recently replaced the MDS 9700 with a new one. After the replacement, the FCoE hosts are unable to log in to the storage fabric. The Nexus switch shows that the FCoE NPV uplinks are up but no FLOGIs are being forwarded. The show npv flogi-table on the Nexus is empty. The upstream MDS shows that the uplinks are in VSAN 100, and the zoning is correct. The Nexus switch configuration includes 'feature npv' and 'npv enable' on the relevant interfaces. The FCoE VLAN 100 is mapped to VSAN 100. What is the most likely cause?

A company is consolidating its storage network into a single fabric using a Cisco MDS 9509. They want to use VSANs to isolate different departments. The VSANs will be 10, 20, and 30. They have a single ISL between two MDS switches. The engineers want to carry all three VSANs over the ISL. They configure both ends of the ISL as E ports and enable trunking. After configuration, they notice that only VSAN 10 traffic passes over the ISL. The other VSANs appear isolated. The show vsan membership shows all three VSANs are present on both switches. The show interface trunk on the ISL shows that the trunk is up but only VSAN 10 is allowed. What is the most likely cause?

A new storage administrator is configuring LUN masking on a Cisco MDS switch. The storage array presents two LUNs to the fabric with the same LUN ID (0) but to different target ports. The administrator wants to ensure that a specific host can access both LUNs. The host is connected to a single HBA port. The host will see both target ports in the same zone. After zoning, the host discovers both target ports but only sees the first LUN. The show flogi database shows the host's pWWN with two FC IDs assigned. What is the most likely issue?

A storage administrator is troubleshooting a Fibre Channel SAN where initiators cannot log in to a target. The administrator verifies that the VSAN is configured correctly and that zoning is in place. Which two additional checks should be performed to resolve the issue?

A storage administrator has been tasked with integrating a new Cisco MDS 9706 switch into an existing Fibre Channel SAN. The existing SAN consists of two Cisco MDS 9148S switches configured in a VSAN 100 with a single zone set that contains all initiator and target WWPNs. The administrator connects the new switch to one of the existing switches using an ISL and configures the new switch with VSAN 100 and the same zone configuration. The administrator activates the zone set on the new switch and verifies that the ISL is up and both switches see each other's Fibre Channel IDs. However, servers attached to the existing switches still cannot discover the storage targets that are connected to the new switch. The administrator has confirmed that the ISL is operational and that the zone set on the new switch is activated with the correct WWPNs. What should the administrator check next?

An engineer is deploying FCoE on a Cisco Nexus 9000v switch in a converged network. The storage array is connected via native Fibre Channel to an MDS switch, and the MDS is connected to the Nexus using an FCoE link. The engineer creates a virtual Fibre Channel (VFC) interface on the Nexus, binds it to an Ethernet interface, and maps VSAN 200 to VLAN 200. The MDS side has an FCoE port configured and enabled. Servers connected to the Nexus with FCoE initiators can successfully log into the storage targets, but performance is very poor and intermittent. The engineer checks for drops on all interfaces and finds none. The engineer also verifies that the FCoE VLAN is not blocked by spanning tree. What is the most likely cause of the performance issue?

A company has two data centers connected via a WAN link using an FCIP tunnel between two Cisco MDS 9700 switches. The FCIP link is configured on a GigabitEthernet port with an MTU of 1500 bytes and uses IPSec for encryption. Recently, storage replication traffic has become slow, and the administrator notices high TCP retransmissions on the FCIP interface. The administrator checks the bandwidth utilization and sees it is only 50% of the link capacity. The storage arrays report no errors or performance issues on their local switches. The administrator also verifies that the FCIP profile is configured correctly and that compression is enabled but not causing any errors. What is the most likely cause of the TCP retransmissions?