E20-553 무료 덤프문제 온라인 액세스

Which technology is used by Isilon OneFS to re-write data when a disk read fails?

• A.Isilon Data Integrity
• B.Dynamic Sector Repair
• C.CRC
• D.NVRAM

An Isilon customer has a replication policy setup between a primary cluster and a secondary cluster. After the initial synchronization of the clusters, the primary cluster starts to exhibit issues so the customer initiates a failover operation between the two clusters.
During the failover, the primary cluster becomes fully operational again. The customer would like to stop the failover operation between the two clusters.
What is the best way to stop the failover operation and continue using the primary cluster?

• A.Nothing; this is an automatic process
• B.Delete the primary clusters' snapshot of this data
• C.Initiate a failover revert on the secondary cluster
• D.Initiate a failover revert on the primary cluster

What is the default method in which Isilon OneFS uses SSDs?

• A.Avoid SSDs
• B.Metadata read/write acceleration
• C.Metadata read acceleration
• D.Data on SSDs

A customer is planning an Isilon deployment for use with their Hadoop environment. What is one advantage of using Isilon as the HDFS layer in this instance?

• A.Provides single protocol access to data
• B.Integrates storage into Hadoop compute for more flexibility
• C.Facilitates independent scaling of compute and storage nodes
• D.Allows the compute nodes to apply data protection

For concurrent I/O, how are Endurant Cache and SmartCache different?

• A.Endurant Cache waits for acknowledgement from all nodes before copying to L2 cache
• B.SmartCache uses sub-file, granular locking whereas Endurant Cache locks the entire file
• C.SmartCache immediately commits the write to NVRAM on the local node and one peer node
• D.Endurant Cache sends an acknowledgement to the client immediately after mirroring writes in NVRAM