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Question 1HPE Storage Portfolio and Positioning
Which HPE storage product family is positioned as the entry-level, block-only SAN array for small and mid-size deployments?
- HPE Primera
- HPE Alletra Storage MP
- HPE StoreOnce
- HPE MSA Correct answer.
Explanation
HPE MSA is the entry storage family aimed at cost-sensitive SAN workloads, offering block access with simple management for small IT teams and remote sites. It sits below the Alletra and Primera tiers in the portfolio ladder.
Question 2HPE Storage Portfolio and Positioning
A customer needs an all-NVMe array with a 100 percent data availability guarantee and peer persistence for two data centers. Which HPE family is designed for that requirement?
- HPE MSA
- HPE Primera Correct answer.
- HPE StoreEver
- HPE Alletra 5000
Explanation
HPE Primera is built for mission-critical workloads with an availability guarantee and synchronous replication across sites for continuous access. Its architecture targets the highest resilience tier in the HPE block portfolio.
Question 3HPE Storage Portfolio and Positioning
What distinguishes HPE Alletra Storage MP from earlier monolithic Alletra arrays in the portfolio?
- It stores data only on tape libraries
- It supports only Fibre Channel connectivity
- It is limited to a single controller pair per cluster
- It uses a disaggregated, scale-out architecture with separate compute and storage nodes Correct answer.
Explanation
Alletra Storage MP introduces a modular, disaggregated design in which storage and compute resources scale independently across a cluster. This separates it from fixed controller-pair arrays and supports block and file workloads on one platform.
Question 4HPE Storage Portfolio and Positioning
Which HPE offering is purpose-built for backup target use with deduplication and replication between appliances?
- HPE StoreOnce Correct answer.
- HPE Nimble Storage dHCI
- HPE Alletra 6000
- HPE MSA
Explanation
HPE StoreOnce is the deduplicating backup appliance family, designed as a disk backup target with replication for disaster recovery. It is positioned separately from primary block and file arrays.
Question 5HPE Storage Portfolio and Positioning
A customer running VMware wants HPE-supported disaggregated hyperconverged infrastructure with independent scaling of compute and storage. Which portfolio solution fits?
- HPE Nimble Storage dHCI Correct answer.
- HPE Primera
- HPE StoreOnce
- HPE Tape Libraries
Explanation
HPE Nimble Storage dHCI combines HPE ProLiant compute with Nimble storage intelligence while allowing compute and storage to scale separately. That disaggregated model is the defining characteristic versus classic hyperconverged systems.
Question 6HPE Storage Portfolio and Positioning
Which HPE storage family is positioned for unstructured file and object workloads at scale rather than block SAN traffic?
- HPE StoreEver
- HPE Primera
- HPE MSA
- HPE Alletra Storage MP with file and object services Correct answer.
Explanation
Alletra Storage MP extends into scale-out file and object serving, addressing unstructured data growth with a single platform. Block-only arrays such as MSA and Primera do not target file and object scale-out use cases.
Question 7HPE Storage Portfolio and Positioning
In the HPE portfolio, what role does HPE GreenLake for Block Storage play?
- It is a software-only deduplication utility for backups
- It provides block storage as a consumed service with cloud-like operations Correct answer.
- It replaces tape libraries for archival retention
- It is a host-based multipathing driver
Explanation
HPE GreenLake for Block Storage delivers array capacity through a consumption-based cloud experience, including unified management and telemetry. It is a delivery model layered on HPE block platforms rather than a new media type.
Question 8HPE Storage Portfolio and Positioning
Which statement best captures how HPE positions Alletra 5000 versus Alletra 6000?
- Alletra 5000 requires mainframe hosts, while Alletra 6000 requires UNIX hosts
- Alletra 5000 is file-only, while Alletra 6000 is object-only
- Alletra 5000 is tape-based, while Alletra 6000 is disk-based
- Alletra 5000 is hybrid and cost-optimized, while Alletra 6000 is all-NVMe for higher performance Correct answer.
Explanation
Alletra 5000 uses a hybrid media mix to balance cost and performance for general workloads, whereas Alletra 6000 is an all-NVMe system aimed at demanding latency-sensitive applications. The distinction is media and performance tier, not protocol or host type.
Question 9HPE Storage Portfolio and Positioning
A small business has a limited budget, needs a simple SAN for a few servers, and has no dedicated storage specialist. Which HPE recommendation aligns with portfolio positioning?
- HPE Primera with peer persistence
- HPE StoreOnce appliance
- HPE Alletra Storage MP cluster
- HPE MSA Correct answer.
Explanation
MSA is positioned for budget-conscious, simplicity-driven SAN needs without specialized storage staff. Higher tiers such as Primera and Alletra MP add capability and cost beyond what this scenario requires.
Question 10HPE Storage Portfolio and Positioning
Which HPE technology is central to the intelligence layer that underpins Alletra 6000 and Nimble arrays for predictive analytics?
- HPE Smart Array
- HPE ProLiant iLO
- HPE StoreEver
- HPE InfoSight Correct answer.
Explanation
HPE InfoSight provides cloud-based telemetry and predictive analytics that underpin the operational intelligence of Alletra and Nimble systems. It is an AI-driven operations platform rather than a hardware component.
Question 11HPE Storage Portfolio and Positioning
Which HPE product line should be proposed when a customer requires long-term offline archival retention with very low media cost?
- HPE MSA
- HPE Alletra 6000
- HPE StoreEver tape Correct answer.
- HPE Nimble Storage dHCI
Explanation
HPE StoreEver tape is positioned for long-term, low-cost archival retention and air-gapped protection against ransomware. Disk arrays serve active workloads and are not the lowest-cost offline retention medium.
Question 12HPE Storage Portfolio and Positioning
A customer asks how HPE differentiates Alletra from a commodity block array. Which combination best reflects the portfolio message?
- Lower raw capacity per rack and manual provisioning
- Removal of replication features to simplify management
- Cloud-based AI operations plus a guaranteed availability design on applicable models Correct answer.
- Exclusive support for a single hypervisor
Explanation
HPE positions Alletra around AI-driven operations through InfoSight and, on applicable models, a data availability guarantee. These operational and resilience attributes are the intended differentiation from commodity arrays.
Question 13HPE Storage Portfolio and Positioning
Which HPE storage offering is most appropriate for a customer consolidating block workloads who wants independent scaling of capacity and performance across nodes?
- HPE StoreEver
- HPE StoreOnce
- HPE Alletra Storage MP Correct answer.
- HPE MSA
Explanation
Alletra Storage MP's disaggregated architecture lets capacity and performance scale independently by adding nodes, which suits consolidation with growth. Fixed-controller entry arrays and backup or tape products do not provide that scaling model.
Question 14HPE Storage Portfolio and Positioning
What is the primary positioning difference between HPE Primera and HPE Alletra 6000 in the portfolio?
- Primera is tape-based, while Alletra 6000 is disk-based
- Primera is entry-level, while Alletra 6000 is archival
- Primera targets the most demanding mission-critical tier, while Alletra 6000 targets business-critical workloads with cloud operations Correct answer.
- Primera supports only NAS, while Alletra 6000 supports only SAN
Explanation
Primera is positioned at the top of the block portfolio for mission-critical, continuous-access workloads, while Alletra 6000 serves business-critical workloads with AI-driven operations. Both are disk arrays, so media and protocol are not the distinction.
Question 15HPE Storage Portfolio and Positioning
Which statement correctly describes how HPE StoreOnce fits alongside primary arrays in a customer solution?
- It provides scale-out file serving for user home directories
- It is the management console for Alletra arrays
- It replaces primary arrays for production databases
- It serves as a deduplicating backup target that protects data from primary arrays Correct answer.
Explanation
StoreOnce is positioned as the backup and recovery target, deduplicating data protected from primary storage. It complements rather than replaces production arrays and does not provide the array management console.
Question 16HPE Storage Portfolio and Positioning
Which HPE portfolio element enables a customer to consume storage with elastic capacity and pay based on measured usage?
- HPE GreenLake Correct answer.
- HPE iLO
- HPE StoreEver
- HPE Smart Array
Explanation
HPE GreenLake is the consumption-based delivery model that meters usage and provides cloud-like elasticity for storage and compute. The other options are hardware products or server components, not consumption platforms.
Question 17HPE Storage Portfolio and Positioning
For a customer with a mixed workload estate, which HPE approach best matches portfolio positioning across block, file, and backup needs?
- Deploy a single tape library for all workloads
- Use only hyperconverged infrastructure for every workload type
- Map each workload to the appropriate family: Alletra or Primera for primary, Alletra MP file and object for unstructured data, StoreOnce for backup Correct answer.
- Standardize all workloads on entry-level MSA arrays
Explanation
HPE positions its portfolio as workload-matched tiers, pairing primary block arrays with scale-out file and object platforms and deduplicating backup appliances. A single product cannot optimally cover all three workload classes.
Question 18HPE Storage Portfolio and Positioning
Which HPE array family is specifically marketed with a guarantee of 100 percent data availability?
- HPE Primera Correct answer.
- HPE StoreEver
- HPE StoreOnce
- HPE MSA
Explanation
HPE Primera is marketed with a data availability guarantee reflecting its mission-critical architecture. Entry arrays and backup or tape products do not carry that guarantee.
Question 19HPE Storage Portfolio and Positioning
What customer problem does HPE Nimble Storage dHCI primarily address compared with traditional hyperconverged systems?
- It removes the need for virtualization software
- It eliminates the need for any storage networking
- It stores all data on tape for cost savings
- It allows compute and storage to scale independently while retaining HCI-style operations Correct answer.
Explanation
dHCI keeps the operational simplicity of hyperconverged systems but decouples compute and storage scaling, avoiding the rigid scaling typical of classic HCI. It still relies on standard networking and virtualization software.
Question 20HPE Storage Portfolio and Positioning
Which HPE storage family is best described as scale-out, software-defined block storage delivered on the Alletra Storage MP hardware?
- HPE Smart Array
- HPE MSA
- HPE Alletra Storage MP Block Correct answer.
- HPE StoreEver
Explanation
Alletra Storage MP Block delivers scale-out block services on the modular MP hardware platform. MSA is entry fixed-controller storage, while StoreEver and Smart Array are unrelated product types.
Question 21HPE Storage Portfolio and Positioning
A customer wants to reduce backup storage footprint and network bandwidth for remote replication. Which HPE capability should be highlighted?
- StoreOnce deduplication and replication Correct answer.
- Primera peer persistence
- Alletra MP scale-out nodes
- MSA snapshot cloning
Explanation
StoreOnce deduplication shrinks the backup footprint, and its replication sends only deduplicated data to remote appliances, reducing bandwidth. Peer persistence and snapshots address availability and local copies, not backup deduplication.
Question 22HPE Storage Portfolio and Positioning
Which statement about HPE Alletra 6000 media and positioning is accurate?
- It is an all-NVMe array positioned for business-critical workloads with AI-driven operations Correct answer.
- It is a hybrid array positioned only for archival data
- It is a tape library positioned for offline retention
- It is a software-only product with no hardware
Explanation
Alletra 6000 is an all-NVMe primary array aimed at business-critical applications, managed with InfoSight intelligence. It is a hardware platform, not a hybrid archival or tape product.
Question 23HPE Storage Portfolio and Positioning
Which portfolio argument best supports proposing HPE Primera over a lower-tier array for a core banking system?
- Lower acquisition cost per terabyte
- Support for tape archival only
- Simpler setup with no replication options
- Mission-critical availability design with peer persistence and a data availability guarantee Correct answer.
Explanation
Core banking demands continuous access, so the mission-critical tier's availability design, cross-site peer persistence, and guarantee are the decisive arguments. Cost per terabyte and simplicity favor entry tiers but do not meet the resilience requirement.
Question 24HPE Storage Portfolio and Positioning
Which HPE product family should be proposed for a customer needing a deduplicating appliance that can also serve as a backup target for cloud-tiered retention?
- HPE Alletra 6000
- HPE MSA
- HPE StoreOnce Correct answer.
- HPE Primera
Explanation
StoreOnce provides deduplicating backup targets with the ability to tier or copy data to cloud storage for retention. Primary arrays such as MSA, Primera, and Alletra 6000 are not positioned as deduplicating backup appliances.
Question 25HPE Storage Portfolio and Positioning
A customer already owns HPE MSA arrays and asks whether MSA can be managed through the same cloud AI operations experience as Alletra. Which answer reflects portfolio positioning?
- No, MSA cannot be managed remotely at all
- No, InfoSight-driven predictive intelligence is positioned with Alletra and Nimble, while MSA targets simple entry management Correct answer.
- Yes, MSA requires InfoSight for all configuration tasks
- Yes, MSA is fully managed by InfoSight with the same predictive analytics as Alletra
Explanation
The AI-driven operations story is tied to Alletra and Nimble through InfoSight, whereas MSA is positioned around simplicity for entry deployments. Stating that MSA requires InfoSight or cannot be managed remotely misrepresents the entry-tier design.
Question 26HPE Storage Portfolio and Positioning
Which HPE storage family is designed primarily for backup and recovery targets, offering deduplication and copy data management rather than serving as a primary block array?
- HPE StoreOnce Correct answer.
- HPE Nimble Storage dHCI
- HPE Alletra 9000
- HPE MSA
Explanation
HPE positions StoreOnce as the dedicated copy data and backup appliance family, with deduplication and Catalyst-based integration into backup software. Alletra 9000, MSA, and dHCI are all primary storage offerings, so they do not fill the backup-target role in the portfolio.
Question 27HPE Storage Portfolio and Positioning
A customer wants to run block workloads on HPE Alletra but prefers to buy infrastructure through a consumption model with metering rather than an outright capital purchase. Which portfolio element should be positioned to meet that requirement?
- HPE Storage Insight Optimizer
- HPE StoreEver tape libraries
- HPE GreenLake for Block Storage Correct answer.
- HPE InfoSight standalone licensing
Explanation
HPE GreenLake for Block Storage delivers Alletra-based block storage as a metered, subscription-style service aligned to actual usage. Tape libraries, optimization tooling, and telemetry licensing are adjacent capabilities that do not by themselves convert the purchase into a consumption model.
Question 28HPE Storage Portfolio and Positioning
A customer runs a latency-sensitive tier-1 database and asks how HPE distinguishes Alletra 9000 from Alletra 6000 in the portfolio. Which distinction should the architect present?
- Alletra 9000 is software-defined storage for containers, while Alletra 6000 is a hyperconverged system.
- Alletra 9000 targets mission-critical workloads with a 100 percent availability guarantee, while Alletra 6000 targets business-critical workloads with AI-driven operations. Correct answer.
- Alletra 9000 is an entry-level SAN for small offices, while Alletra 6000 is a backup deduplication appliance.
- Alletra 9000 is a scale-out file and object platform, while Alletra 6000 is a tape replacement appliance.
Explanation
HPE positions Alletra 9000 at the top of the block portfolio for mission-critical, always-on workloads backed by an availability guarantee. Alletra 6000 sits below it for business-critical workloads and is characterized by cloud-based AI operations and predictive analytics.
Question 29HPE Storage Portfolio and Positioning
A customer with existing HPE Nimble Storage arrays wants to modernize operations without abandoning the predictive analytics they rely on. Which portfolio message best supports a move to HPE Alletra 6000?
- Alletra 6000 removes predictive analytics entirely and relies on customer-run health checks.
- Alletra 6000 continues the Nimble data-services and AI operations lineage while adding a cloud-native management experience. Correct answer.
- Alletra 6000 requires migration to a separate monitoring product because Nimble tooling is discontinued.
- Alletra 6000 replaces Nimble analytics with manual threshold-based alerting to reduce telemetry costs.
Explanation
Alletra 6000 inherits the Nimble architecture and its cloud-based AI operations, so existing customers keep predictive analytics and data services. The portfolio story is continuity of intelligence plus a modernized, cloud-native operational experience rather than a break from it.
Question 30HPE Storage Portfolio and Positioning
A customer is consolidating mixed workloads and asks why HPE positions a disaggregated hyperconverged architecture rather than a traditional hyperconverged one. Which argument reflects the HPE Nimble Storage dHCI positioning?
- It removes the need for a hypervisor by running workloads directly on the storage controllers.
- It requires compute and storage to scale together in fixed appliance increments to guarantee balanced performance.
- It separates compute and storage scaling so each can grow independently while retaining hyperconverged-style management. Correct answer.
- It replaces the storage layer with direct-attached disk inside each server to minimize rack space.
Explanation
dHCI keeps hyperconverged simplicity but disaggregates compute from storage, letting customers scale either resource independently and avoid stranded capacity. Traditional HCI ties compute and storage together in the same node, which is the constraint dHCI is positioned against.
Question 31Storage Architecture and Technologies
In an HPE storage array, which technology provides a write-back cache that is protected against controller failure by mirroring cache contents to the partner controller?
- SSD read cache tier
- Battery-backed write cache with mirrored partner cache Correct answer.
- Persistent memory write journal
- Read-ahead prefetch buffer
Explanation
HPE arrays protect acknowledged writes by holding them in cache that is both battery-backed and mirrored across controller nodes, so a single controller failure does not lose data. The other mechanisms either accelerate reads or serve different persistence roles.
Question 32Storage Architecture and Technologies
Which RAID level used in HPE storage systems stripes data and parity across at least three drives, tolerating one drive failure while maximizing usable capacity?
- RAID 1
- RAID 10
- RAID 5 Correct answer.
- RAID 6
Explanation
RAID 5 distributes parity across all member drives, so it survives a single drive failure while losing the capacity of only one drive. RAID 6 tolerates two failures but costs two drives of capacity, and RAID 1 and RAID 10 mirror data instead of using distributed parity.
Question 33Storage Architecture and Technologies
What is the primary purpose of thin provisioning on an HPE storage array?
- To replicate volumes synchronously to a remote array
- To deduplicate blocks within a volume
- To encrypt data at rest across all volumes
- To allocate physical capacity to volumes only as data is actually written Correct answer.
Explanation
Thin provisioning presents a logical capacity larger than the physical capacity initially consumed, drawing from a shared pool as writes occur. This defers capital spending and improves utilization, but it requires monitoring so the pool does not run out of space.
Question 34Storage Architecture and Technologies
Which HPE storage networking transport is commonly used to connect hosts to an array over a dedicated lossless Ethernet fabric with priority flow control?
- NFS over TCP
- Fibre Channel over IP
- Fibre Channel over Ethernet Correct answer.
- iSCSI over standard Ethernet
Explanation
Fibre Channel over Ethernet encapsulates FC frames on a lossless Ethernet fabric configured with priority flow control and DCB, preserving FC semantics while consolidating cabling. Plain iSCSI and NFS run over conventional Ethernet without that lossless requirement.
Question 35Storage Architecture and Technologies
Which component in an HPE SAN design prevents a host from discovering LUNs that it is not authorized to access?
- Multipath I/O driver on the host
- Trunking between ISLs
- Zoning on the SAN switches
- Host LUN masking or presentation on the array Correct answer.
Explanation
LUN masking or presentation is enforced by the array, which exposes a given volume only to the initiators (host WWNs or IQNs) explicitly assigned to it. Zoning controls which ports can communicate at the fabric level but does not by itself restrict which LUNs a host can see.
Question 36Storage Architecture and Technologies
What does a snapshot of an HPE storage volume typically capture at the moment it is created?
- A full physical copy of every block in the volume
- A point-in-time logical image that references the original data Correct answer.
- A compressed archive written to tape
- A remote replica synchronized to a secondary array
Explanation
Snapshots create a point-in-time logical view that references existing data, and changed blocks are preserved as writes continue. This makes them fast and space-efficient compared with full physical copies or remote replicas.
Question 37Storage Architecture and Technologies
Which protocol is used by an HPE array to present block storage to a host over a standard TCP/IP network?
- FC-AL
- NFS
- FCoE
- iSCSI Correct answer.
Explanation
iSCSI carries SCSI block commands inside TCP/IP packets, allowing block storage access over existing Ethernet networks. FCoE and FC-AL are Fibre Channel technologies, and NFS provides file-level rather than block-level access.
Question 38Storage Architecture and Technologies
What is the main benefit of using wide striping across many drives in an HPE storage array?
- It eliminates the need for RAID protection
- It reduces the number of parity calculations required
- It distributes I/O load across spindles to improve performance Correct answer.
- It compresses data before writing to disk
Explanation
Spreading a volume across many drives lets the array service requests in parallel across more spindles, raising throughput and reducing per-drive contention. Wide striping does not remove the need for RAID protection or change parity math.
Question 39Storage Architecture and Technologies
An administrator needs to add read performance for a latency-sensitive database without changing the array's RAID layout. Which HPE feature should be enabled to cache frequently accessed blocks on SSDs?
- Remote replication
- Adaptive read caching tier Correct answer.
- Volume snapshot schedule
- Thin reclamation
Explanation
An SSD-based read cache tier holds hot blocks so repeated reads are served from flash rather than spinning media, improving latency without altering RAID. Reclamation, replication, and snapshots address capacity, protection, and recovery instead of read acceleration.
Question 40Storage Architecture and Technologies
A host connected through two HBAs to an HPE array must continue I/O if one path fails. Which host-side technology provides redundant paths to the same LUN?
- Multipath I/O Correct answer.
- Zoning
- Snapshot rollback
- LUN masking
Explanation
Multipath I/O software presents multiple physical paths to a single device, detecting failures and rerouting I/O to a surviving path. Masking and zoning govern access and connectivity but do not by themselves provide path failover for the host.
Question 41Storage Architecture and Technologies
An HPE array reports that a RAID 6 set has lost two member drives and a third is showing predictive failure. What is the current fault tolerance status of the set?
- It has already lost data and must be restored from backup
- It has no redundancy remaining and is operating in a degraded state Correct answer.
- It can survive two additional drive failures
- It can still survive one additional drive failure without data loss
Explanation
RAID 6 tolerates two simultaneous drive failures because it stores dual parity. With two members already gone, the parity protection is exhausted, so the set is degraded and another failure would cause data loss.
Question 42Storage Architecture and Technologies
A thin-provisioned volume is configured with a 10 TB logical size but only 2 TB has been written. What does this configuration mean for physical capacity consumption in the pool?
- The pool consumes 5 TB as a fixed reservation
- The pool must reserve 10 TB immediately
- The pool consumes no capacity until the volume is full
- The pool consumes capacity only for the 2 TB actually written Correct answer.
Explanation
Thin provisioning allocates physical blocks on demand, so only the 2 TB written is consumed from the pool. The remaining logical space is not reserved, which is why pool monitoring and alerting are important.
Question 43Storage Architecture and Technologies
Why does an HPE storage array recommend aligning host file system and partition offsets to the array's stripe unit?
- To enable data encryption at rest
- To prevent a single host write from spanning multiple stripes and causing read-modify-write overhead Correct answer.
- To reduce the number of parity drives needed
- To reduce the size of snapshots
Explanation
Misaligned partitions cause a logical write to straddle two stripes, forcing the array to read old data and parity to update them. Aligning offsets so writes fall within a stripe avoids that extra read-modify-write work and improves performance.
Question 44Storage Architecture and Technologies
Which statement best describes the role of a SAN fabric zone in an HPE environment?
- It defines which initiator and target ports are permitted to communicate Correct answer.
- It sets the RAID level of a volume
- It schedules snapshots for a volume
- It assigns LUN numbers to volumes
Explanation
Zones are configured on the switches and define communication paths between specific ports, typically grouping an initiator with its target ports. LUN assignment, RAID level, and snapshot scheduling are all array-side functions.
Question 45Storage Architecture and Technologies
An administrator wants to reclaim space in a thin pool after deleting large files inside a thin-provisioned volume. Which array capability is required to return those blocks to the pool?
- Thin reclamation using UNMAP or zero-detection Correct answer.
- Read cache eviction
- Snapshot rollback
- Remote replication resynchronization
Explanation
Thin reclamation returns freed blocks to the pool when the host issues UNMAP or the array detects zeroed blocks during writes. Without reclamation, deleted data continues to occupy physical capacity in the pool.
Question 46Storage Architecture and Technologies
What distinguishes a clone from a snapshot on an HPE storage array?
- A clone can only be created from a snapshot, never from a volume
- A clone is a full independent copy of the source data, while a snapshot is a point-in-time reference Correct answer.
- A clone requires no additional capacity, while a snapshot consumes full capacity
- A clone is always stored remotely, while a snapshot is always local
Explanation
A clone creates an independent full copy that can be modified without affecting the source, whereas a snapshot is a lightweight point-in-time reference to the original data. Clones consume their own capacity, and snapshots conserve capacity by tracking changes.
Question 47Storage Architecture and Technologies
Which HPE storage feature allows a volume to be presented simultaneously to multiple hosts with coordinated write access control, typically for clustered applications?
- Asynchronous replication
- Single-initiator LUN masking
- Snapshot schedule
- Cluster-aware shared volume presentation with SCSI reservations or persistent reservations Correct answer.
Explanation
Clustered applications need a volume visible to every node while the cluster software uses SCSI persistent reservations to arbitrate writes. Plain single-initiator masking presents a volume to only one host and does not coordinate multi-host writes.
Question 48Storage Architecture and Technologies
An HPE array is configured with a RAID 10 volume for a write-intensive workload. Which characteristic explains why this choice improves write performance compared with RAID 5?
- RAID 10 writes require no parity calculation, so writes go to mirrored pairs Correct answer.
- RAID 10 performs read-ahead more aggressively than RAID 5
- RAID 10 stores parity on a dedicated drive
- RAID 10 uses larger stripe units than RAID 5
Explanation
RAID 10 mirrors data across paired drives and stripes across pairs, so each write is duplicated but no parity must be computed. RAID 5 writes require read-modify-write parity updates, which adds overhead on write-heavy workloads.
Question 49Storage Architecture and Technologies
A SAN design uses two independent fabrics with each host HBA connected to only one fabric. What is the primary resilience benefit of this design?
- It doubles the usable capacity of the array
- It isolates a fabric failure so hosts can fail over through the surviving fabric Correct answer.
- It eliminates the need for LUN masking
- It removes the need for multipath software
Explanation
Dual independent fabrics prevent a single switch or ISL failure from isolating all hosts, and multipath software moves I/O to the surviving fabric. Capacity is unaffected, and masking and multipath are still required.
Question 50Storage Architecture and Technologies
Which HPE storage capability protects against a site-wide outage by maintaining a synchronized copy of production volumes at a remote array?
- Local snapshot
- Synchronous remote replication Correct answer.
- Thin reclamation
- Read cache tier
Explanation
Synchronous remote replication writes data to both the local and remote arrays before acknowledging the host, enabling recovery from a site loss. Local snapshots, reclamation, and read caching all operate within a single site and do not provide remote copies.