You have to architect a block migration to a VNX for a customer. Which attribute of incremental SAN Copy for this migration would allow you to migrate the LUNs with minimal down time?
A. The source LUN can be online during the sync
B. Data can be read from the destination LUN during the sync
C. CPU usage is lower on the source array
D. No enabler is required to be installed
When using VNX Replicator for File why is it important to configure the SavVol on different drives from the PFS whenever possible?
A. So that VNX Replicator will not read from the PFS drives while it is in use.
B. Writes to the PFS can change the data in the SavVol while it is being used in a replication.
C. When the SavVol and PFS are on the same spindles the size of DFS must be equal to or greater than the SavVol plus the PFS.
D. VNX Replicator will become suspended if there are too many client requests to a PFS with the SavVol on the same spindles.
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An application generates 500 random 8 kB IOPS with a R/W ratio of 3:1. An asynchronous mirror is started on the application LUN. The update cycle is configured to be 30 minutes, and updates take 15 minutes to complete. Assume that the
data rate is constant.
What is the minimum space that should be configured for the Reserved LUN Pool on the secondary VNX?
A. 879 MiB
B. 7,032 MiB
C. 14,064 MiB
D. 16,250 MiB
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An application generates 800 random 16 kB IOPS with a R/W ratio of 3:1. An MV/A mirror is started on the application LUN. The update cycle is configured to be 15 minutes, and updates take 6 minutes to complete. Assume that the data rate is constant.
What is the minimum space that should be configured for the Reserved LUN Pool on the secondary VNX?
A. 2,813 MB
B. 4,500 MB
C. 5,625 MB
D. 11,250 MB
What is the main reason MirrorView/S has a lower effect on CPU utilization compared to MirrorView/A?
A. No CoFW activity
B. Low CoFW activity
C. High transfer rates
D. Low transfer rates
A customer has configured replication between Data Movers on two VNX arrays. In order to provide maximum network performance for the replication process, the customer has configured link aggregation on each Data Mover to provide two Gigabit Ethernet ports per Data Mover to the replication process. While reviewing performance reports the customer notices the replication network is using less than 30% of the available bandwidth.
What change will increase the efficiency of the replication network bandwidth?
A. Add ports to the aggregated links on each Data Mover.
B. Increase FAST Cache capacity on the target VNX.
C. Add spindles to the disk group hosting the destination SavVol.
D. Configure multiple Replicator sessions between the source and target VNX.
Your customer is experiencing performance degradation when deleting VNX Snapshots. What technique would you recommend to avoid the defragmentation process that is occurring?
A. Avoid deleting the last Snapshot on the Thick LUN
B. Implement RecoverPoint CLR
C. Implement SnapSure checkpoints
D. Implement Replication Manager to automate your local protection
Where does SnapSure place the SavVOL, by default?
A. on a disk pool where FAST Cache is not enabled
B. on a thin LUN
C. on the same drive pool as the PFS
D. on a disk pool where FAST Cache is enabled
What is a performance concern when the last VNXsnapshot for a Thick LUN is deleted?
A. both consolidation and defragmentation are done when the last snapshot is deleted
B. all snapshot deletes perform the same processes
C. only consolidation is done when the last snapshot is deleted
D. all snap slices are erased
What is the best practice for where SavVol should be located?
A. on a disk pool where FAST Cache is not enabled
B. on a thin LUN
C. on Solid State Drives
D. on a disk pool where FAST Cache is enabled
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