Among the components of the mechanical disk, the parts responsible for reading and writing data are:
In the following backup media, the order of unit capacity price from low to high is:
After the multi-path software is installed on the host, which of the following descriptions are correct? (Multiple choice)
A, LUN is automatically mapped to the host
B. Assist the operating system to access the same LUN through multiple links to avoid logical errors
C. Improve link reliability and prevent single link failure, thereby avoiding system failure
D. Establish a SCSI connection between the host and the storage device
In the HUAWEI OceanStor storage system, a customer plans to deploy 3 sets of systems, a set of business systems, to run
Oracle database, which requires high random read and write performance; a mail system for daily mail processing; a video system
System to save long-term archived videos. When creating LUNs for each system separately, the following about SmartTier policy settings
the correct one is? (Multiple choice)
What are the following types of disaster recovery at the host layer? (Multiple choice)
In Huawei storage systems that use RAID 2.0+ technology, a hard disk domain can only contain one type of hard disk.
FC relies on a dedicated FC network and can easily form storage islands.
What is the description of file-level HyperSnap feature data recovery in HUAWEI OceanStor storage system, which
Are these correct? (Multiple choice)
Description 1: A RAID consisting of several hard disks is called a physical volume.
Description 2: RAID 5 can improve the read and write rate and provide a certain degree of data security, but when there is a single hard disk failure
At this time, read and write performance will be greatly reduced.
Description 1: The file system of the SAN storage is deployed on the storage side, and the file system of the NAS storage is on the host side.
Description 2: Dynamic tiered storage can achieve data migration between storage media with different performance
What conditions should be considered for device backup bandwidth? (Multiple choice)
A, the size of the initial data
B. The daily quantity increment
C. Backup cycle
D. Backup staff
Two CKs in a CKG of RAID2.0+ can come from the same hard disk.
There are two descriptions about backups, the correct ones are:
Description 1: The disaster recovery solution does not need to consider whether it is backed up on tape or hard disk.
Description 2: The backup plan should consider the worst case.
What is a measure of storage system performance?
When the disk is read and written, the sector is the minimum addressing unit, and a segment can be written to the first half of a sector
Data, and then write a piece of data to another sector.
