Huawei H13-611 Practice Test - Questions Answers, Page 52

When using CLI to configure Huawei hybrid flash storage, the operations involved in creating storage space include creating a storage pool, creating a LUN, and creating a LUN group. Creating a host is not involved in creating storage space.

RAID 0 is a data striping technique that involves distributing data across two or more disks, which allows for increased performance and capacity. RAID 0 does not provide redundancy, and if any of the disks in the RAID group fail, the data will be lost. RAID 5 and RAID 6 are both data striping techniques, but they also provide redundancy, which means that the data is still recoverable even if one or more disks in the RAID group fail. RAID 1 is a data mirroring technique, which involves writing the same data to two disks, and does not use data striping.

Zoning is a technology that segregates the nodes in the SAN fabric into multiple networks and allows access control of the members. Subnet, VLAN, and Quarantine are all related to network security, but they are not specifically used in a

SAN fabric.

The evolution is SCSI-1 > SCSI-2 > SCSI-3. SCSI stands for "Small Computer System Interface", and it is a protocol system that supports communication between different devices. The latest protocol is SCSI-3, which provides a transmission speed of up to 1 GB/s. The evolution of SCSI is SCSI-1 > SCSI-2 > SCSI-4 > SCSI-3.

IP SAN and FC SAN are different types of storage area networks (SANs) that use different protocols for data transmission.

IP SAN uses the iSCSI protocol for data transmission. It is a block-level protocol that allows data to be transferred over IP networks and it allows to connect hosts and storage systems over long distances using standard Ethernet networks.

FC SAN uses the Fibre Channel (FC) protocol for data transmission. It is a dedicated protocol that uses a dedicated cabling and a specialized switch infrastructure to connect hosts and storage systems.

Both IP SAN and FC SAN encapsulate the SCSI command with their underlying protocol before transmission, but they cannot connect to each other without additional protocols such as Fibre Channel over IP (FCIP) or Internet SCSI (iSCSI) which are used to tunnel Fibre Channel or iSCSI over an IP network.

Nearline storage is a type of data storage that is classified based on data access frequency, with online storage being for frequent access, nearline storage for occasional access, and offline storage for rare access. Unified storage combines the features of online, nearline and offline storage into a single solution.

The correct answers are B. Better environmental adaptability, C. Faster read/write speed for random access, and D. Longer service life. SSDs (solid-state drives) offer several advantages over HDDs (hard disk drives), including better environmental adaptability, faster read/write speed for random access, lower power consumption, and a longer service life. SSDs also tend to have smaller form factors, making them ideal for many mobile applications. However, HDDs typically offer larger capacity than SSDs.

Solid-state drives (SSDs) are a type of data storage device that have several advantages over hard disk drives (HDDs).

Better environmental adaptability: SSDs are not affected by temperature, humidity, or altitude changes, and they are more resistant to shock and vibration than HDDs.

Faster read/write speed for random access: SSDs have no moving parts, which means that data can be read and written much faster than on HDDs, especially for random access to small files.

Longer service life: SSDs have no moving parts, so they are less likely to fail due to mechanical issues.

They also have a higher maximum read/write cycle than HDDs, which means that they can handle more write operations over their lifetime.

Larger capacity: SSDs are not always have larger capacity than HDDs, it depends on the specific model and brand.

The correct answers are A. SmartMigration and D. HyperClone. SmartMigration and HyperClone are features designed to manage storage and do not directly address the performance requirements of online services. SmartTier and HyperMetro are features designed to address performance requirements by tiering storage based on data access frequency and allowing for the replication of data across multiple sites.

The correct answers are A. Inline compression before data is written to disks and C. Post-process compression, where data is first written to disks and then read and compressed when the system is idle. Huawei storage systems support both inline compression before data is written to disks and post-process compression, where data is first written to disks and then read and compressed when the system is idle. Inline compression after data is written to disks is not supported.