RAID10 disk utilization levels of RAID group (N: mirroring disks):
A. 1 / N
B. 100%
C. (N-1) / N
D. 1/ 2
A dual-port the FC-HBA card, there are two numbers WWNN.
A. True
B. False
Relative to the HDD hard drive, SSD hard disk read and write speeds generally used in demanding environments.
A. True
B. False
RAID data organization have? (Choose two)
A. Block
B. Parallel
C. Serial
D. Strips
When using the method of multiple paths between the application server connected to the storage system, in the absence of multipath software support, the way that multiple paths which are connected will cause a problem? (Choose three)
A. Danger to the data
B. Produce the illusion of multiple redundant disks
C. The operating system does not know when to use the redundant paths
D. Reduced bandwidth
For RAID5 which of the following description is not correct? (Choose two)
A. The same size,in the number of hard drives,the random read and write performance is relatively higher than those RAID3
B. Suitable for file server,Email server,WEB server,such as input / output intensive, read / write higher percentage of applications
C. Two members of the panel fail without affecting data integrity
D. Data redundancy check code is calculated by the Hamming
The number of disk RAID group members do not recommend too much, for example, more than 20 members of the disk RAID, only 8-9 blocks performance ratio (the number of recommended disk RAID5 members) Low disk RAID group members, and the RAID group fail during operation probability increases.
A. True
B. False
Linux system, the MBR disk to GPT format to use what commands:
A. parted
B. fdisk
C. diskpart
D. mount
SAN storage system configuration files cannot be imported after export.
A. True
B. False
Which of the following SCSI interface card can transmit both data streams can be transmitted database operations are. (Choose two)
A. FC HBA card
B. TOE NIC
C. Ethernet cards
D. iSCSI HBA card
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