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| Section | Weight | Objectives |
|---|---|---|
| Troubleshooting | 20% | - Diagnosing performance issues - System error handling and recovery - Upgrade and maintenance procedures - Resolving connectivity problems |
| Administration | 30% | - Volume and host provisioning - Network setup and integration - System configuration and management - User and access control |
| Data Protection | 18% | - Replication and disaster recovery - Snapshot technology and management - Data encryption and security |
| Monitoring | 20% | - Pure1 monitoring and analytics - Performance monitoring and analysis - Alert management and reporting |
| FlashArray Files | 12% | - File system management and optimization - File access and sharing - File system deployment and configuration |
>> FlashArray-Storage-Professional Deutsch <<
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37. Frage
Which storage protocol is best suited for a Hyper-V cluster in an ethernet-switched environment?
Antwort: B
Begründung:
Protocol Compatibility: While NVMe-over-Fabrics (NVMe-oF) is the future of high-performance storage, support for it within specific hypervisor ecosystems varies. In the context of Microsoft Hyper-V, especially in older or standard Ethernet-switched environments, iSCSI remains the most mature, widely supported, and native protocol for block storage.
Ethernet Constraints: The question specifies an Ethernet-switched environment. This immediately rules out NVMe/FC (NVMe over Fibre Channel), as that requires dedicated Fibre Channel switching infrastructure and HBAs, not standard Ethernet.
NVMe/RoCE vs. iSCSI: While NVMe/RoCE (RDMA over Converged Ethernet) runs on Ethernet, it requires specialized NICs (RDMA-capable) and a specific switch configuration (PFC/LFC) to ensure a lossless fabric. Hyper-V has specific requirements for RoCE (often tied to SMB Direct for File services), but for general block storage volumes in a standard Ethernet environment, iSCSI is the "best suited" due to its ease of deployment, native Windows initiator support, and lack of requirement for specialized lossless hardware.
Pure Storage Best Practices: Pure Storage FlashArrays provide industry-leading iSCSI performance. When using iSCSI with Hyper-V, Pure recommends using the native Windows MPIO (Multi-Path I/O) with the "Least Queue Depth" policy to ensure optimal load balancing across the Ethernet fabric.
38. Frage
A storage administrator is troubleshooting a FlashArray that is critically low on space. They have successfully deleted and eradicated a large volume, but used space keeps increasing.
What is a possible cause?
Antwort: B
Begründung:
Logical vs. Physical Reclamation: When an administrator "Eradicates" a volume, the FlashArray immediately removes the logical reference to that data. However, the physical blocks are not "wiped" instantly. Instead, those blocks are marked as "eligible for reclamation" by Purity's background Garbage Collection (GC) process.
Workload Prioritization: Purity is designed to prioritize Host I/O (production performance) over background system tasks. If the array is under an extremely high workload (high Load Meter percentage), Purity will automatically throttle the Garbage Collection process to ensure the application latency remains as low as possible.
The "Reclamation Lag": If the incoming write rate from the hosts (new data being written) exceeds the speed at which the throttled GC process can reclaim space from the eradicated volume, the "Used Space" metric will continue to trend upward. This is a common scenario when arrays are pushed to their performance or capacity limits simultaneously.
Why Option A is incorrect: The 24-hour safeguard applies to Destroyed volumes (the "Pending Eradication" bucket). Once an administrator manually clicks Eradicate, that safeguard is bypassed, and the space should logically be freed. If the space is still not reflecting as "Free," it is a back-end processing delay, not a timer delay.
Why Option C is incorrect: In the Purity Operating Environment, the array does not require the host to "unmount" or "disconnect" before it can reclaim space. Once the volume is destroyed and eradicated on the array side, those blocks are gone from the array's perspective, regardless of the host's state (though the host will likely experience I/O errors).
39. Frage
A FlashArray is configured to use directory services. A user is a member of the groups associated with both Array Admin and Storage Admin.
What will the user experience when logging into the array?
Antwort: C
Begründung:
On a Pure Storage FlashArray, Role-Based Access Control (RBAC) allows administrators to integrate with Directory Services (like Active Directory or OpenLDAP) to control user access. Purity uses a specific hierarchy for its administrative roles, which from highest to lowest privilege are: Array Admin, Storage Admin, Ops Admin, and Read Only.
When a user logs in and is found to be a member of multiple Active Directory or LDAP groups that are mapped to different roles on the FlashArray, Purity's behavior is designed to grant the user the highest level of permissions among those conflicting group mappings. Because the Array Admin role is higher in the hierarchy than the Storage Admin role, the user will successfully log in and be granted full Array Admin permissions.
Here is why the other options are incorrect:
Inability to login (A): Purity handles overlapping group memberships gracefully by defaulting to the highest privilege. It does not lock the user out or cause a login failure.
Storage Admin permissions (B): Because the system grants the highest available mapped privilege, the user will not be restricted to the lower-tier Storage Admin role when they also possess group membership for the Array Admin role.
40. Frage
An administrator is setting up FA File using the FlashArray GUI. The company is an NFS only shop and needs to configure their remote user authentication.
Which of the following GUI locations should the administrator use to configure access?
Antwort: B
Begründung:
For FlashArray File Services (FA File), user authentication and mapping depend on the storage protocol being used. In an NFS-only environment, remote user authentication (resolving UNIX UIDs and GIDs to actual usernames and managing access) is typically handled via LDAP or NIS.
To configure this integration in the Purity GUI, the storage administrator must navigate to Settings > Access > Directory Services. This specific section allows the FlashArray to connect to a centralized directory server (such as OpenLDAP or even Active Directory providing LDAP services) to pull the necessary UNIX user and group attributes required for NFS file permissions to function properly.
Here is why the other options are incorrect:
Settings > Access > Create Active Directory Account (A): This specific menu path is used strictly for configuring native Active Directory (AD) computer accounts and joining the domain to support the SMB (Server Message Block) protocol. Since the scenario explicitly states the company is an "NFS only shop," configuring an SMB AD account is not the correct step.
Settings > Access > File System (C): While you manage file-level exports and policies within the Purity file interface, the global configuration for remote user authentication and directory server integration lives under the dedicated Directory Services pane.
41. Frage
How is SAN Time measured?
Antwort: C
Begründung:
Understanding Total Latency: In a FlashArray environment, total latency as seen by the host application is the sum of several components. Pure Storage breaks this down into Array Time and SAN Time to help administrators pinpoint where performance bottlenecks exist.
SAN Time Definition: SAN Time represents the latency introduced by the network infrastructure between the host (initiator) and the FlashArray (target). This includes the time spent traveling across Fibre Channel or Ethernet switches, cables, and host bus adapters (HBAs). It is calculated by taking the total round-trip time measured by the host and subtracting the time the FlashArray spent processing the I/O.
Metric Breakdown: * Array Time: The time the FlashArray takes to process the I/O once it hits the front-end ports (Option C describes internal array time).
SAN Time: The transit time for the request to reach the array and the response to return to the host (Option A).
Wait Time: In ActiveCluster environments, there is also "Mirror Latency," which is the time spent synchronizing data to a peer array (Option B).
Troubleshooting Value: If a user reports high latency but the FlashArray GUI shows very low Array Time, the administrator can look at the SAN Time metric. A high SAN Time indicates an issue with the fabric, such as a failing SFP, a congested switch port, or oversubscribed ISLs (Inter-Switch Links).
42. Frage
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