In the Huawei OceanStor system, the size of the file system block is a measure of the size of the accessed file system block. The size of the block is designed according to the size of the data block. Different size of the file system block selects the corresponding file system block, according to the size of the data block. If the business scenario is the media, for large file archiving or stagger I / O backup scenarios, it is recommended to choose the default 64KB disk block size.
Answer(s): A
Customers need to create a new Oracle database server Huawei RH5885. V2 32 nuclear CPU, the host using Redhat6.4 operating system, the text system is EXT4, the storage device Oceanstor V3, the I SAS disk and 8D + 1P RAID5 are configured to guide one million data batch. Which of the following methods can improve the import performance into the new database? (Multiple choice)
Answer(s): A,B,C
Existing set customer of database uses a raw device, due to the large amount of data in the database. The customer plans to replace the old storage with new storage devices.In the process of environmental inspection lvcb engineers found the following:#getlvcb -TA sjklvIntrapolicy =copies = 0interpolicy =lvid =lvname =label =machine id =number Ips = 0relocatable =strict =stripe width = 0stripe size in exponent = 0type =upperbound = 0fs =time created = time modified =As the vg is too large, the expansion of vg is impossible. As the service window is very short, and customers do not want to avoid the risk of large adjustments of the whole original environment, what is the recommended approach?
Answer(s): D
Information of the disaster recovery research Beijing project mainly includes three aspects (Who / What / Why) description. Which of the following is true? (Multiple choice)
Answer(s): C,D
The MTTR indicator is used to describe the average continuous time of the failure of a product during operational use or testing.
Answer(s): B
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