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| Section | Objectives |
|---|---|
| FlashArray Administration | - FA File Services Configuration - Volume Configuration - Host Connections Configuration - Storage Concepts - Array Configuration and Management |
| Data Protection | - SafeMode - Snapshots - Replication - ActiveDR - ActiveCluster |
| Troubleshooting | - Incorrect Configuration - Alerts - Troubleshooting Resources - Port Identification and Configuration |
| Monitoring | - Pure1 Auditing and Alerts - Meta Forecasting - Reporting from Pure1, Graphical User Interface (GUI), and Command Line Interface (CLI) |
>> FlashArray-Storage-Professionalテキスト <<
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質問 # 72
Volume space has increased on a FlashArray and shared space decreased by the same amount.
What does this indicate?
正解：A
解説：
Understanding Space Reporting: To understand this behavior, you have to look at how Purity calculates capacity. Pure Storage uses a data reduction engine where data is deduplicated and compressed.
Volume Space vs. Shared Space:
Volume Space: This represents the unique data belonging to a specific volume that is not shared with any other volume via deduplication or snapshots.
Shared Space: This represents the data that is common across multiple volumes or snapshots. If you have two volumes that are clones of each other, most of that data is "Shared." The "Shift" Mechanism: When a volume is deleted (and potentially eradicated), the data it once shared with other volumes no longer needs to be "shared." Imagine Volume A and Volume B share 100GB of data. That 100GB is accounted for in Shared Space.
If you delete Volume B, that 100GB of data is now only referenced by Volume A.
Consequently, that 100GB is moved from the Shared Space bucket into Volume A's Volume Space bucket.
Net Result: The total physical space used on the array remains the same initially, but the accounting shifts. You see a decrease in Shared Space and an identical increase in the Volume Space of the remaining volumes that held those deduplication references.
質問 # 73
Twelve stretched pods are synchronously replicating between an ActiveCluster (AC) FlashArray pair. A new unstretched pod is created and then is stretched, but the operation fails.
What is the most likely cause of the operation not completing successfully?
正解：C
解説：
ActiveCluster Scalability Limits: Pure Storage FlashArrays have specific scalability limits regarding the number of "Active" or "Stretched" pods allowed per array or ActiveCluster pair. While these limits can vary slightly based on the Purity//FA version and the specific hardware model (e.g., //X, //XL, or //m), a common architectural limit in many Purity versions is up to 12 stretched pods.
The Scenario Analysis: In this case, the environment already has 12 stretched pods successfully replicating. When the administrator attempts to stretch a 13th pod, the operation fails because the array has hit the maximum concurrent stretched pod count supported by the Purity operating environment for that configuration.
Stretched vs. Unstretched: A pod exists locally (unstretched) without consuming an ActiveCluster pod "slot" in the same way. The failure specifically occurs during the "stretch" operation, which is the point where the synchronous replication relationship and mediator monitoring are established.
Resolution: To resolve this, the administrator would either need to:
Unstretch or Eradicate an existing pod that is no longer needed to free up a slot.
Check the specific Purity Release Notes for the hardware model to see if a firmware upgrade increases the maximum pod limit (some newer versions support more, but 12 is the classic threshold often tested in professional certifications).
質問 # 74
Pure Protect //DRaaS is configured with a Business Policy to back up data to AWS. An administrator, with DRaaS Global Admin access, is trying to delete the policy but is unable to do so.
What is restricting the administrator from deleting the policy?
正解：B
解説：
In policy-driven data protection and disaster recovery architectures like Pure Protect //DRaaS, a "Business Policy" dictates the critical Service Level Agreements (SLAs) for your environment, such as your Recovery Point Objective (RPO), replication frequency, and retention schedules. These policies are then assigned to "Application Groups," which act as logical containers for the specific virtual machines being protected and replicated to AWS.
As a fundamental safety mechanism built into the platform to prevent accidental exposure and SLA breaches, the system places a hard dependency lock on actively used policies. An administrator cannot delete a Business Policy if there are still Application Groups actively relying on it for their DR scheduling. To successfully delete the policy, the administrator must first modify all associated Application Groups and assign them to a different Business Policy, or completely remove the protection from those groups.
Here is why the other options are incorrect:
The administrator also needs DRaaS Cloud Admin access (C): The scenario explicitly states the user already has "DRaaS Global Admin access." In the Pure Protect //DRaaS Role-Based Access Control (RBAC) model, Global Admin is the highest tier of privilege and has full rights to manage and delete policies. A lack of permissions is not the issue here.
The Business Policy is marked as the Primary Policy (B): While a policy might be a default or primary template, the actual hard restriction that prevents deletion in the software is active resource assignment (the Application Groups), not just a "Primary" label.
質問 # 75
The administrator needs to remove a volume from a ratcheted protection group.
How can this be accomplished?
正解：C
解説：
Ratcheted Protection Groups: A "ratcheted" protection group is a security feature used to enforce data retention and prevent the accidental or malicious removal of volumes from a protection policy. Once a protection group is ratcheted, the configuration is essentially "locked." The "Ratchet" Mechanism: When a protection group is ratcheted, Purity prevents any modifications that would decrease the level of protection. This includes preventing the removal of volumes from the group, as removing a volume would stop its scheduled snapshots and replication, thus violating the established security posture.
Security and Compliance: Because ratcheting is often used for compliance (such as SEC Rule 17a-4 or HIPAA) or as a defense against ransomware, it is designed to be difficult to reverse. Neither the standard GUI (Option C) nor the standard CLI (Option B) provides a self-service "unlock" button for a ratcheted group.
The Recovery Path: To remove a volume or change the settings of a ratcheted protection group, a FlashArray administrator must Contact Pure Storage Support. Support engineers have specific, high-level challenge-response procedures to verify the administrator's identity and intent before performing the back-end operations required to "un-ratchet" or modify the group.
質問 # 76
An administrator is attempting to add a volume to a volume group but it does not show up in the list of volumes available to move in, even though it does show up in the volumes pane.
Why is the volume missing?
正解：B
解説：
In the Pure Storage Purity operating environment, a volume can only be a member of one Volume Group at a time.
When an administrator navigates to a Volume Group in the GUI and clicks to add members, the system filters the inventory and only displays volumes that are currently "unassigned" (not belonging to any Volume Group). If a volume is already residing inside another Volume Group, Purity intentionally hides it from this available list to prevent conflicting overlapping memberships. To resolve this, the administrator must first navigate to the volume's current Volume Group, remove the volume from that group, and then it will become available to add to the new one.
Here is why the other options are incorrect:
It is already part of a Protection Group (B): Protection Groups (pgroups) manage snapshot and replication schedules. A volume can absolutely be a standalone member of a Protection Group while simultaneously being added to a Volume Group. Being in a pgroup does not hide it from the vgroup selection list.
It is protected by SafeMode (C): SafeMode is a ransomware protection feature that prevents the manual eradication of destroyed volumes and snapshots before their retention timer expires. It does not dictate or restrict logical organizational containers like Volume Groups.
質問 # 77
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