A SAN administrator creates a SAN Copy session between two EMC VNX using Navisphere Secure CLI for a single database LUN. The session starts copying but fails to complete. What is the most likely cause of this failure?
A. The destination LUN is smaller than the source LUN.
B. A host has mounted the LUN on the destination VNX.
C. LUN masking has not been completed.
D. Zoning between the two VNX is incorrect.
A VNX storage system has four 15-drive DAEs. There are fifteen flash drives installed in a single DAE. The customer plans to implement traditional LUNs for this configuration. What is recommended SAS LCC port configuration?
A. Distribute flash drives on all odd ports
B. Distribute flash drives on all even ports
C. Distribute flash drives evenly across all ports
D. Distribute flash drives on all ports in a single enclosure
A storage pool used for FAST VP has the following configuration:
Flash drives: 1,000 GB, with 500 GB free SAS drives: 5,000 GB, with 1,500 GB free NL-SAS drives: 19,000 GB, with 3,000 GB free The tiering policy is set to Auto. An additional 250 GB of new data is written to the storage pool. What is the data distribution after the data is written?
A. Flash drives: 475 GB free; SAS drives: 1,425 GB free; NL-SAS drives: 2,850 GB free
B. Flash drives: 250 GB free; SAS drives: 1,000 GB free; NL-SAS drives: 3,000 GB free
C. Flash drives: 500 GB free; SAS drives: 750 GB free; NL-SAS drives: 3,000 GB free
D. Flash drives: 490 GB free; SAS drives: 950 GB free; NL-SAS drives: 2,810 GB free
A customer runs a CAD/CAM application on an EMC VNX for File. The application is accessed by users at multiple sites. The users report degraded response during peak access periods.
Performance monitoring of the file system shows a higher than expected disk queue length and a higher than expected number of unused blocks pre-fetched. What is the likely cause of the performance issue?
A. Multi-threaded sequential reads causing random access patterns
B. Single-threaded sequential reads flooding cache
C. Multi-threaded random reads degrading per-thread performance
D. Single-threaded random reads overutilize pre-fetching
A client is planning a virtualized SQL Server environment with remote protection. They need virtual
machine consistent, point-in-time copies of the database as backups.
Which option meets this scenario?
A. Raw Device Map and MirrorView
B. Raw Device Map and VMHA
C. VMFS vDisk and MirrorView
D. VMFS vDisk and VMHA
A customer plans to migrate from an EMC CLARiiON to a new EMC VNX. They want to migrate some of the CLARiiON LUNs to thin LUNs on the VNX. Which SAN Copy configuration will allow them to avoid a fully provisioned thin LUN?
A. Push from thin LUN to thin LUN
B. Pull from thin LUN to thin LUN
C. Push from traditional LUN to thin LUN
D. Pull from traditional LUN to thin LUN
A customer is using MirrorView/S to replicate production data from Site A to Site C. The production Exchange server is located at Site A and has access to LUNs 101 and 102. LUNs 101 and 102 are placed in a consistency group. Site A experiences a disaster and Site C is now production. What configuration change is needed to allow the Exchange server access to Site C's LUNs 101 and 102?
A. Promote the Secondary Image.
B. Connect the Exchange server to the appropriate storage group.
C. Add the Secondary Image to the appropriate storage group.
D. Fracture the mirror.
You are installing a new EMC VNX. All flash drives will be provisioned for FAST Cache. The VNX has the following hardware:
6 DAEs
24 Flash drives
24 SAS drives
24 NL-SAS drives
How should the drives be physically located for better performance and stability?
A. The Flash drives should be placed on DAE0 and DAE1, followed by the SAS drives, and then the NLSAS drives
B. The SAS drives should be placed on DAE0 and DAE1, followed by the Flash drives, and then the NLSAS drives.
C. The SAS drives should be placed on DAE0 and DAE1, followed by the NL-SAS drives, and then the Flash drives.
D. The physical location of the drives does not affect the performance of a VNX.
Which part of the VNX initiates failover of a Blade?
A. SP
B. User
C. Blade
D. Control Station
A customer configures a SAN Copy session. They connect to the destination storage system and select a destination LUN. When they run the SAN Copy session, it fails. What could be a cause of the session failure?
A. SAN Copy ports are not configured.
B. SAN Copy initiators are not configured.
C. VNXs are not in the same domain.
D. LUNs are not the same RAID type.
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