When you plan an ONTAP upgrade, which NetApp tool generates a detailed upgrade plan?
The Upgrade Advisor is a NetApp tool that generates a detailed, step-by-step plan for upgrading an ONTAP system. This tool is available through the Active IQ portal and helps ensure a smooth and risk-free upgrade process.
Key Features of Upgrade Advisor:
Provides a tailored upgrade plan based on the current ONTAP version, cluster configuration, and desired target version.
Identifies potential risks, compatibility issues, and pre-requisite tasks for the upgrade.
Offers detailed instructions for each stage of the upgrade process.
Why Other Options Are Incorrect:
A . ONTAP System Manager:
While System Manager can be used to initiate upgrades, it does not generate a detailed upgrade plan.
B . Active IQ Unified Manager:
Unified Manager focuses on monitoring and management but does not provide upgrade plans.
D . Active IQ Config Advisor:
Config Advisor checks for best practices and configuration issues but is not used for generating upgrade plans.
NetApp's 'ONTAP Upgrade Guide' emphasizes the use of Upgrade Advisor for planning upgrades.
Active IQ documentation provides detailed instructions on accessing and using the Upgrade Advisor tool.
Which two tools can you use to invoke AutoSupport? (Choose two.)
To invoke AutoSupport in ONTAP, the following tools can be used:
1. CLI (Command Line Interface)
How to use: Run the command:
python
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autosupport invoke -node <nodename> -type all
This triggers AutoSupport to collect and send logs and system information.
2. NetApp Active IQ website
How to use: Log in to the Active IQ portal and use its interface to request an AutoSupport message from the connected ONTAP systems.
Why Other Options Are Incorrect:
A . NetApp Cloud Insights:
This tool is used for monitoring and performance analysis, not for triggering AutoSupport messages.
D . the SmartSolve tool:
SmartSolve is used for case resolution guidance but does not invoke AutoSupport.
'ONTAP AutoSupport Guide' provides instructions for invoking AutoSupport via CLI and Active IQ.
An aggregate has experienced a multiple disk failure due to a failing I/O module (IOM). The module has been replaced and the aggregate is still failed.
What step can be taken to recover the aggregate?
When an aggregate fails due to multiple disk failures caused by a faulty I/O module (IOM), the first step after replacing the faulty IOM is to manually unfail the affected drives. This process is done in maintenance mode.
Steps to Recover the Aggregate:
Enter Maintenance Mode:
Reboot the node and interrupt the boot process to access maintenance mode.
Identify Failed Drives:
Use the command:
sql
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storage show disk --broken
This command lists all failed (broken) drives.
Unfail the Drives:
Use the following command for each failed drive:
php
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disk unfail <disk-name>
Reconstruct the Aggregate:
Once all drives are unfail, the system should begin reconstructing the RAID groups in the aggregate.
Why Other Options Are Incorrect:
A . Use diskcopy from maintenance mode:
Diskcopy is used for cloning or copying data between disks, not for recovering failed aggregates.
B . Run wafliron from the boot_menu:
wafliron is used to repair WAFL inconsistencies, but it does not help recover failed aggregates due to disk issues.
D . Unfail the drives in the order that they failed from the clustershell:
Drives must be unfail in maintenance mode, not from the clustershell.
NetApp's 'Aggregate and RAID Troubleshooting Guide' explains the process of recovering aggregates and using maintenance mode commands.
'ONTAP Disk Recovery Guide' outlines steps to unfail disks and recover RAID groups.
Which statement best describes the functionality of RAID Error Propagation (REP)?
Functionality of RAID Error Propagation (REP):
RAID Error Propagation (REP) ensures that errors on the disk layer, such as unrecoverable read errors, do not propagate as inconsistencies into the WAFL (Write Anywhere File Layout) metadata layer.
WAFL is designed to manage data blocks, and if an error occurs on a user data block, WAFL can identify and handle it gracefully without flagging an inconsistency.
Why Option A Is Correct:
REP ensures that errors on a user data block are isolated and do not trigger WAFL inconsistencies. Instead, the error is handled at the RAID layer or higher without corrupting metadata.
This design provides a robust mechanism to protect against data integrity issues caused by disk errors.
NetApp Reference Documentation:
Refer to the 'ONTAP Storage Management Guide' and the 'NetApp RAID Guide,' which explain how RAID and WAFL interoperate and how REP is implemented.
On a NetApp FAS9000 system, which two field replaceable units (FRUs) are supported for replacement without takeover? (Choose two.)
FRUs on FAS9000 Supporting Replacement Without Takeover:
A (I/O Module): I/O modules can be replaced hot (without takeover) to maintain system uptime during hardware servicing.
D (NVRAM Module): NVRAM modules on FAS9000 can also be replaced without a node takeover, ensuring data integrity during replacement.
Why Other Options Are Incorrect:
B (DCPM Module): The DCPM (Data Center Power Management) module is not hot-swappable and requires a node takeover.
C (Caching Module): The caching module is integrated and typically requires a node takeover or power-down for replacement.
NetApp Reference Documentation:
Refer to the 'NetApp FAS9000 Hardware Service Guide' for supported FRU replacement procedures and operational constraints.
