单选题A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated,and Fast Disk Takeover will be implemented to meet the new Service Level Agr

题目
单选题
A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated,and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover?()
A

 Disk should be mirrored across separate storage enclosures.

B

 Disk heartbeats should be added over multiple disk adapters.

C

 Disk major and minor numbers should be set as unique across nodes.

D

 Disk adapter queue_depth should be increased from the default values.

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相似问题和答案

第1题:

During normal cluster processing in a five-node cluster,one of the nodes unexpectedly crashes. A review of the system dump indicates that a DMS timeout has occurred. The cluster is configured to use disk heartbeats as a Point-to-Point network.  What should be done to address the problem with this configuration?()  

  • A、 More disk should be added to the disk heartbeat network,allowing more paths for heartbeats.
  • B、 An RS232 network is required to supply a more robust non-IP network when disk heartbeating is implemented.
  • C、 The network tunable parameters should be changed to allow more missed heartbeats since the disks may be heavily used.
  • D、 An error notification method is required to determine the action to take in response to a failure of the disk heartbeat.

正确答案:C

第2题:

The en0 interface on Node1 of a two-node cluster has failed. This adapter is configured with a boot addressand under stable operations also has the service address of the cluster’s single resource group. The resourcegroup is configured with the fallback option. The HA network was configured for IPAT via aliasing and now theservice address is on the en1 interface in the cluster. The en0 interface has already been physically replacedand configured with the boot address. Which of the following will return the cluster to its original state andminimize cluster downtime?()

  • A、Run cluster synchronization.
  • B、Restart cluster services on Node1.
  • C、Perform a swap_adapter using C-SPOC
  • D、Restart cluster services on both nodes

正确答案:C

第3题:

A new HACMP maintenance level has recently been released. An administrator is creating a  project plan that is required for applying the updates for a three-node production cluster.  To minimize downtime,what is the best way to accomplish the updates on all cluster nodes?()  

  • A、 Perform a graceful takeover one node at a time and apply the updates.
  • B、 Perform the updates on all nodes simultaneously using C-SPOC utilities.
  • C、 Perform the updates on node at a time with the cluster software active.
  • D、 Perform a graceful stop of all cluster nodes and apply updates to all nodes.

正确答案:A

第4题:

A two-node cluster is configured for mutual takeover with two service IP labels. The cluster is Being tested for fallover behavior. Both nodes in the cluster have two network interfaces (ent0’ and ’ent1’) configured with IPAT via IP Replacement. When the network cable is removed from the interface card with the service address (’ent0’), the service address is moved to ’ent1’, and ’ent0’ is reconfigured on its boot address. When the network cable is replaced on ’ent0,the service address does not switch back to ’ent0’.  What statement most accurately describes this situation?()   

  • A、 EtherChannel is needed to automatically switch the service IP address back to ’ent0’.
  • B、 This is the default behavior for a network interface failure with this configuration.
  • C、 Gratuitous ARP support needs to be enabled for the IP Network Interface Module in SMIT.
  • D、 The Inactive Network Takeover option should be set to "true" to forece the service address back to ’ent0’.

正确答案:B

第5题:

Which of the following is required to ensure the completion of all tests within the automated procedure of thecluster test tool?()

  • A、Application monitoring has been configured
  • B、Only disk heartbeat networks have been used
  • C、Cluster nodes are attached to two IP networks
  • D、Resource Group dependencies have been configured

正确答案:C

第6题:

Company.com with a newly installed cluster has been checking the logfiles to determine if the  cluster has had any recent activity. The non-IP RS232 heartbeat connection seems to be having a difficulty. The serial network goes down,and then a couple of minutes later comes back up again. This pattern is repeated many times in the log.  If this system was installed without regard to best practices, what is the most likely problem with the serial network?()  

  • A、 The serial port is malfunctioning and needs to be repaired.
  • B、 The baud rate is incorrectly specified in the AIX devices configuration.
  • C、 The serial port is not a port approved to support HACMP heartbeat traffic.
  • D、 The baud rate is incorrectly specified in the HACMP interface configuration.

正确答案:C

第7题:

While installing the equipment for a new two-node cluster, it is discovered that the disk subsystem  Rack has one connection to the power mains. The explanation given was that the disks are to be mirrored between the two disk drawers in the rack and that a failure in either of the disk drawers would simply result in half of the disk being lost.  What can be done to avoid a single point of failure?()   

  • A、 Customize HACMP to overcome quorum issues.
  • B、 Add a second PDU to separate the power connections.
  • C、 Use RAID5 when implementing two IO racks in a HACMP environment.
  • D、 Add another shared disk to each volume group to avoid quorum issues during fallover.

正确答案:B

第8题:

A customer has a requirement to build a 4 node cluster. Disk heartbeating will be used as the non-IP network.What is the maximum number of disk heartbeat point-to-point links one would need to implement in order toachieve the highest level of availability?()

  • A、4
  • B、6
  • C、8
  • D、12

正确答案:B

第9题:

A new administrator is performing fallover testing on a two-node cluster and is concerned that the cascading resource group belonging to Node ’A’ did not reintegrate properly after the cluster was restarted on Node ’A’. A stable cluster is reported by clstat,and clRGinfo reports the resource group online on Node ’B’.  What type of configuration would cause this type of behavior?()  

  • A、 The resource group DNP has been configured.
  • B、 The resource group option CWOF has been enabled.
  • C、 The resource group option Inactive Takeover is set.
  • D、 A resource group fallback timer has been configured.

正确答案:B

第10题:

A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated,and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover?()  

  • A、 Disk should be mirrored across separate storage enclosures.
  • B、 Disk heartbeats should be added over multiple disk adapters.
  • C、 Disk major and minor numbers should be set as unique across nodes.
  • D、 Disk adapter queue_depth should be increased from the default values.

正确答案:B

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