Which of the following description of the application of NDMP backup on the OceanStor 9000 V100R001C30 is wrong?
A. Does not support the system disk backup and recovery operations
B. When enabling the snapshot-based backup mode, the NDMP backup feature requires the file system to support snapshots. Otherwise, the backup task can not be successfully performed.
C. Based on the snapshot backup, snapshots are created for the current directory. Because the extended attributes of the current directory receive the snapshot protection, the current directory extended attributes will be backed up.
D. Does not support the system time zone or other time-related adjustments, does not support daylight saving time.
To cluster the server's public IP address in an Oracle RAC deployment process, a private IP address is written to the / etc / hosts file, along with the Virtual IP address, cluster unique access IP address and public IP. Which of the following configuration is correct? (all subnet masks are 255.255.255.0)
A. 127.0.0.1 localhost
129.22.221.200 cluster-scan
129.22.221.201 node1
129.22.221.211 node1-vip
192.168.222.211 node1-priv
129.22.221.202 node2
129.22.221.212 node2-vip
192.168.222.212 node2-priv
B. 127.0.0.1 localhost
129.22.221.200 cluster-scan
129.22.221.201 node1
129.22.221.211 node1-vip
192.168.222.211 node1-priv
129.22.221.202 node2
129.22.221.212 node2-vip
192.168.221.212 node2-priv
C. 127.0.0.1 localhost
129.22.222.200 cluster-scan
129.22.221.201 node1
129.22.221.211 node1-vip
192.168.222.211 node1-priv
129.22.221.202 node2
129.22.221.212 node2-vip
192.168.222.212 node2-priv
D. 127.0.0.1 localhost
129.22.221.200 cluster-scan
129.22.222.201 node1
129.22.221.211 node1-vip
192.168.222.211 node1-priv
129.22.221.202 node2
129.22.221.212 node2-vip
192.168.222.212 node2-priv
Which description of the the OceanStor V3 file system snapshot feature is wrong?
A. In File System Snapshot when you create a snapshot, you simply copy the root of the file system and save it to form a snapshot of the file system.
B. Deletion Snapshots use a mechanism for reclaiming space, so snapshot data space is immediately freed after snapshots have been deleted.
C. After creating a snapshot in the File System, as the main file system is continuously updated, the original data block will gradually become the space occupied by this quick debt. However, a newly written data will not be included in the snapshot space.
D. File system snapshot data can not be deleted directly, and only after the snapshot has been deleted, this part of the space can be released.
Which of the following description for Thin LUNs and Thick LUNs for OceaStor V3 storage is true?
A. Thin LUN and thick LUN can be configured with the same capacity.
B. Both thin LUN and thick LUN can make initial capacity allocations.
C. The maximum capacity of thin LUNs and thick LUNs can be greater than or equal to the available capacity of the storage pool where they reside.
D. Both thin LUNs and thick LUNs can be created in bulk.
Customers set up a vio server environment on an IBM server, and the storage devices connected to the server through vio server provide storage space to a virtual partition in the server. Customers buy Huawei Oceanstor18000 deposit Storage and plan to replace the original storage device. What is the recommended best practice?
A. Connect Huawei storage to the original vio server and perform data migration on the vio server system layer.
B. Connect Huawei storage to the original vio server and migrate data in the virtual partition system layer.
C. Create a new vio server for Huawei storage and migrate data in the virtual partition system layer.
D. Create a new vio server for Huawei storage and migrate data on the vio server system layer.
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.
A. True
B. False
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.)
A. Modify the value of DB-WRITER-PROCESSES.
B. Redhat system default CFQ algorithm on the database business efficiency is not high, should be adjusted to noop algorithm.
C. Oracle database FILESYSTEMIO-OPTIONS parameter can be set to Asynch, and the file system log off.
D. Modify Oracle's DB-BLOCK-SIZE parameters.
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 sjklv
Intrapolicy =
copies = 0
interpolicy =
lvid =
lvname =
label =
machine id =
number Ips = 0
relocatable =
strict =
stripe width = 0
stripe size in exponent = 0
type =
upperbound = 0
fs =
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?
A. Based on lvcb offset reconstruction nude equipment, and the database level 0 backup import
B. Use the dd command for data migration
C. Use the cplv command for data migration
D. Use migratepv for data migration
Information of the disaster recovery research Beijing project mainly includes three aspects (Who / What / Why) description. Which of the following is true? (Multiple choice.)
A. A bank has more than XX customers and XX corporate customers.
B. Loss of data will result in substantial loss of business interruption and may also result in significant financial loss.
C. Business interruption has a huge impact, and the interruption time of business deployment <2h.
D. Customers want to build two live-action data centers in the same city and realize double-live of the key business systems. The disaster recovery plan RPO = 0, RTO = 0
Simpana storage strategy is an important parameter is data retention rules to determine the need to back up the contents of the backup time and backup methods. Each copy has an independent data retention period, each copy can be set using______. (Multiple choice.)
A. Basic rules of retention
B. Advanced retention rules
C. Extended retention rules
D. Special retention rules
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