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Free NS0-093 Exam Braindumps (page: 6)

Page 5 of 17
PDF with 61 Questions

On an AFF A700 system, a SAS stack is connected to SAS ports 2a and 2b. The system has an additional 4-port SAS card in slot 9.
How should the cabling the corrected for best practices?

  1. Use port 2a and 9a.
  2. Use port 2a and 9b.
  3. Use port 2a and 2c.
  4. Use port 2b and 9d.

Answer(s): A

Explanation:

Best Practices for SAS Cabling in AFF A700 Systems:
The AFF A700 system has built-in SAS ports (e.g., 2a and 2b) as well as additional SAS ports on optional SAS cards.
To ensure high availability and redundancy, it is recommended to distribute SAS connections across multiple SAS ports from different controllers or slots.
Why Port 2a and 9a Are Recommended:
Port 2a is a built-in SAS port on the AFF A700 system. Port 9a belongs to the additional SAS card in slot 9. By connecting the stack using 2a and 9a, you utilize different SAS domains (built-in controller ports and add-on card ports), providing both path redundancy and load balancing.
NetApp Reference Documentation:
"NetApp Hardware Universe" and "ONTAP Hardware Installation Guide" highlight that SAS cabling for redundancy should leverage different ports, including those from separate SAS controllers or add-on cards.
NetApp's best practice guidelines suggest avoiding connections to the same SAS controller or port group for critical stacks.



You are reviewing the output of disk show and one of the disks is reporting a container type of "unknown".

What is causing this status?

  1. The disk is not owned by a member of the high-availability (HA) pair.
  2. The disk is failed.
  3. The disk is in the maintenance center.
  4. The disk does not have an owner.

Answer(s): D

Explanation:

Understanding "Container Type: Unknown" in Disk Show Output:
The "unknown" container type typically indicates that the disk is not properly configured or recognized by ONTAP.
This status often occurs when a disk does not have an owner assigned.
Root Cause:
For a disk to be used in an ONTAP system, it must be owned by a member of the high-availability (HA) pair.
If no ownership is assigned, the disk will not be initialized, resulting in an "unknown" container type.
Steps to Resolve:
Use the disk assign command to manually assign ownership of the disk. Example: storage disk assign -disk <disk_name> -owner <node_name> NetApp Reference Documentation:
"ONTAP Disk Management Guide" explicitly states that unowned disks report "unknown" container type until they are assigned to a node.
This is further detailed in the "ONTAP Troubleshooting Guide" under disk configuration issues.



Which two statements are true about an IOM 12 module? (Choose two.)

  1. It has two SAS ports.
  2. It has four SAS ports.
  3. It does not have an Ethernet port for alternate control path (ACP).
  4. It has an Ethernet port for alternate control path (ACP).

Answer(s): B,D

Explanation:

Overview of IOM 12 Module:
The IOM 12 module is used in NetApp storage shelves for SAS connectivity.
Key Features of IOM 12:
SAS Ports: The IOM 12 module has four SAS ports (two IN and two OUT) to support daisy-chaining of shelves and provide redundancy.
ACP (Alternate Control Path): The IOM 12 includes an Ethernet port for ACP, which is used for out-of- band management and monitoring of the storage shelves.
Elimination of Other Options:
Option A is incorrect because the module has four SAS ports, not two. Option C is incorrect because the module does include an Ethernet port for ACP.

NetApp Reference Documentation:
"NetApp Hardware Universe" lists the specifications of the IOM 12 module, including its SAS and ACP capabilities.
The "ONTAP Shelf Installation Guide" discusses ACP and its role in shelf management.



What is the recommended value for disk and CPU use when you plan an upgrade?

  1. less than 50%
  2. less than 90%
  3. less than 85%
  4. less than 70%

Answer(s): D

Explanation:

Upgrade Considerations for Disk and CPU Utilization:
During an ONTAP upgrade, it is critical to ensure the system has sufficient resources to handle the upgrade process without impacting normal operations.
Recommended Threshold:
NetApp recommends that both disk and CPU utilization should be below 70% before initiating an upgrade. This ensures that there is enough headroom for the upgrade operations and avoids performance degradation.
Steps to Verify Utilization:
Use the system node show -fields cpu command to check CPU usage. Use the storage aggregate show -fields used command to check aggregate disk utilization.
NetApp Reference Documentation:
"ONTAP Upgrade and Maintenance Guide" specifies the 70% threshold for disk and CPU usage during upgrade planning.
The "ONTAP Performance Management Guide" provides methods for monitoring system resource utilization.






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