Huawei H13-611_V4.5 - HCIA-Storage V4.5
SCSI communication is initiated by the initiator and received and processed by the target. When the host and the storage device communicate, the storage device
The side assumes the role of initiator.
iSCSI encapsulates the SCSI command and data description block into the iSCSI protocol.
The advantages and disadvantages of the disaster recovery technology of the host layer, network layer and array layer, the following statement is correct? (Multiple choice)
In the RHEL 5 operating system, which command is used to mount the sdb5 device in the dev directory to the mnt directory
sdb5 directory?
The SCSI protocol is the basic protocol for host and disk communication. It is operated by the SCSI controller, the controller is equivalent
For a small CPU, it has its own command set and cache.
In Huawei OceanStor storage devices, coffer disks are an optional configuration because the write cache has mirrors, and
There is a backup power supply for the controller.
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The cloud data center virtualizes storage, computing and network resources, and provides a virtualization platform for users to use.
Regarding the description of Huawei OceanStor storage system safe disk, which of the following is correct? (Multiple choice)
Can the following transmission protocols not use switches?
A company uses the CIFS protocol for file sharing, and uses the Homedir sharing method according to the security policy.
All users access the folder and write space.
The dual-controller storage system generally contains a mirror channel, and data written to the storage system cache will be written through the mirror channel
Into the peer controller.
The steps of asynchronous remote replication multi-point technology, is the following statement correct?
(1) A new time slice (T2, P2) is generated in the cache of the master LUN and the slave LUN at the start of each replication cycle
(2) The newly written data of the host is cached in the time slice T2 of the main LUN Cache, responding to the completion of the host
(3) The master and slave LUNs each release the received data
(4) Copy the data of time slice T1 directly to the slave LUN and write it to the time slice P2 of the slave LUN
Description 1: The LUN is composed of multiple Extents in the storage pool.
Description 2: The LUN can contain one or more types of Extent.
The initial capacity allocation strategy of HUAWEI OceanStor storage system defaults to automatic allocation.
Backup is concerned with data recoverability, and disaster recovery is concerned with business continuity.