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| Section | Objectives |
|---|---|
| NetApp Storage Fundamentals | - ONTAP architecture overview - Storage system components |
| Troubleshooting and Support | - Hardware troubleshooting - Performance and connectivity issues |
| System Administration and Maintenance | - Firmware and software upgrades - System monitoring and logging |
| Installation and Configuration | - Initial system setup - Cluster configuration basics |
| Networking and Protocols | - SAN protocols (iSCSI, FC) - NAS protocols (NFS, CIFS/SMB) |
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48. Frage
For testing purposes, your customer decides to use FC on a single-node ONTAP cluster. There is only one host that the customer expects to use. High availability is not a concern for this test. The customer connects the host directly to the ONTAP node. The LUN is set up, and the igroup is configured. When the customer tries to attach to the LUN from the host, the LUN is not seen by the host.
Which statement is correct in this scenario?
Antwort: D
49. Frage
Your customer's MetroCluster has generated a "DISK REDUNDANCY FAILED" message.
Netapp-EmA:
Tue Jan 14 04:12:12 CET [netapp-EmA:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv' failed.
Tue Jan 14 04:12:13 CET [netapp-EmA:rv.connection.torndown:info]: HA interconnect: cfo_rv1 is torn down on NIC 1.
Tue Jan 14 04:12:13 CET [netapp-EmA:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'1 failed.
Tue Jan 14 04:12:15 CET [netapp-EmA:rv.connection.torndown:info]: HA interconnect: cfo_rv2 is torn down on NIC 1.
Tue Jan 14 04:12:18 CET [netapp-EmA:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'2 failed.
Tue Jan 14 04:12:19 CET [netapp-EmA:bridge.removed:info]: FC-to_SAS bridge siteB_2:13.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111161] was removed Tue Jan 14 04:12:19 CET [netapp-EmA:bridge.removed:info]: FC-to_SAS bridge siteB_2:5.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111160] was removed Netapp-EmB:
Tue Jan 14 04:12:12 CET [netapp-EmB:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv' failed.
Tue Jan 14 04:12:12 CET [netapp-EmB:rv.connection.torndown:info]: HA interconnect: cfo_rv2 is torn down on NIC 1.
Tue Jan 14 04:12:13 CET [netapp-EmB:rv.connection.torndown:info]: HA interconnect: cfo_rv1 is torn down on NIC 1.
Tue Jan 14 04:12:13 CET [netapp-EmB:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'1 failed.
Tue Jan 14 04:12:18 CET [netapp-EmB:cf.rv.notConnected:error]: HA interconnect: Connection for 'cfo_rv'2 failed.
Tue Jan 14 04:12:19 CET [netapp-EmB:bridge.removed:info]: FC-to_SAS bridge siteA_2:13.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111167] was removed Tue Jan 14 04:12:19 CET [netapp-EmB:bridge.removed:info]: FC-to_SAS bridge siteA_2:5.126L0 [ATTO FibreBridge6500N 1.61] S/N [FB7500N111164] was removed Referring to the messages shown in the exhibit for each node, which component is causing the problem?
Antwort: D
Begründung:
The ISL between siteA and siteB is the component causing the problem. The EMS messages show both nodes reporting HA interconnect connection failures and then bridges being removed from opposite sites at essentially the same timestamp. If a single ATTO bridge were the root cause, the failure would localize to that bridge or path. If one SAN switch at siteA_2 or siteB_2 failed, the messages would more narrowly implicate paths through that switch. Instead, both sides simultaneously lose visibility across the fabric to remote bridges, which indicates an intersite link failure between the sites. In a fabric MetroCluster, ISLs carry the cross-site connectivity required for mirrored storage and FC fabric communication. A support engineer should interpret symmetry: simultaneous bridge removals from both perspectives generally point to the shared intersite path, not independent bridge failures at both locations. References/topics: MetroCluster fabric ISLs, FC-to-SAS bridge visibility, DISK REDUNDANCY FAILED messages, cross-site pathing, and MetroCluster fabric troubleshooting.
50. Frage
A customer is using DP SnapMirror replication between two clusters. The source cluster is using Clustered Data ONTAP 8.2.3.
Which two versions are acceptable for the destination cluster to be operating? (Choose two.)
Antwort: A,C
51. Frage 
Which type of MetroCluster is shown in the exhibit?
Antwort: D
Begründung:
The exhibit shows a fabric-attached MetroCluster design rather than an IP or stretch design. The output includes FC-VI host adapters, Brocade switch information, FibreBridge devices, and disk shelves connected through FC-to-SAS bridges. Those components are characteristic of a fabric MetroCluster where Fibre Channel switches provide the intersite storage fabric and bridges connect SAS shelves into the FC environment. A two-node stretch MetroCluster would not show the same four-node fabric topology, and MetroCluster IP would use Ethernet-based back-end connectivity rather than FC switches and FC-to-SAS bridges. A four-node stretch MetroCluster would also not use the fabric-switch/bridge arrangement shown in the exhibit. The support engineer must identify topology from the hardware path indicators, not from the node count alone. The presence of FC switches, FC-VI, and ATTO FibreBridge devices makes the topology a four- node fabric-attached MetroCluster. References/topics: MetroCluster fabric architecture, FC-VI adapters, FC- to-SAS bridges, Brocade switch paths, and MetroCluster hardware topology identification.
52. Frage
How many drive bays does a DS4246 shelf have?
Antwort: C
Begründung:
A DS4246 shelf has 24 drive bays. The model naming can be misleading if interpreted literally, but in NetApp shelf terminology DS4246 identifies a 4U disk shelf that supports twenty-four 3.5-inch drives and uses 6 Gb SAS connectivity. Twelve bays would describe smaller shelf families, and forty-two or forty-six bays do not match the DS4246 platform. This is a hardware-identification question, so the support engineer should rely on shelf model characteristics rather than infer the capacity from a partial number in the model name. The DS4246 is commonly found in FAS environments that use external SAS shelves for high-capacity HDD deployments. Knowing bay count is important for capacity planning, shelf cabling validation, disk replacement planning, and interpreting AutoSupport shelf/disk inventories. The shelf model also affects IOM selection, stack planning, slot numbering, and replacement logistics during field service. References/topics:
NetApp DS4246 disk shelf specifications, SAS shelf hardware, 4U 24-bay shelf design, and drive-shelf identification.
Reference: https://www.insight.com/en_US/shop/product/DS4246074812AQSR6/NETAPP/DS4246-0748-
12A- QS-R6/NetAppStorageShelfDS4246-Storageenclosure-24bays(SAS-2)-HDD4TBx12-rack-mountable-
4U/
53. Frage
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