where should additional component LUNs used to create the metaLUN be created?
A Storage Administrator wants to create a striped 4 TB metaLUN to present to an application
server. They plan to use a base LUN size of 1.4 TB made from a RAID 5 (4+1) protected RAID
Group of 600 GB SAS drives.
According to EMC best practices, where should additional component LUNs used to create the
metaLUN be created?
Why EMC best practice recommends selecting drives from the same bus?
When creating a RAID 5 RAID Group from SAS disks, EMC best practice recommends selecting
drives from the same bus.
Why?
What is the most likely reason?
A customer reported degraded performance with several of the applications that run on a VNX.
After reviewing the performance data on the array, you find that all the performance issues are
related to one RAID 5 RAID Group. Specifically, this RAID Group is performing 50 percent fewer
IOPS than previously.
What is the most likely reason?
What caused the failure?
A customer has a heterogeneous FAST VP Pool with 2.4 TB available space. The pool contains a
mix of thick LUNs and thin LUNs. The customer attempts to create a 2.4 TB thick LUN, but the
process fails.
What caused the failure?
How will data be distributed initially on the fourth LUN that is created?
A FAST VP Pool is configured with 1,000 GB of Flash, 5,000 GB of SAS, and 25,000 GB of NLSAS drives. Four thick LUNs of 2,000 GB each are created at 30 minute intervals with default
configuration parameters.
How will data be distributed initially on the fourth LUN that is created?
What should be your response?
A customer is running out of space and wants to order more drives to add to their existing single
Pool environment. The current pool is a mix of 10k SAS and 7.2k NL-SAS drives. The customer
plans to purchase 15k SAS drives but seeks your advice.
What should be your response?
What could be causing this issue?
A Storage Administrator tries to expand the size of a thin pool LUN in a pool that is oversubscribed
by 70%. The operation fails.
What could be causing this issue?
Which location is used to optimize cached ACL database lookups?
Which location is used to optimize cached ACL database lookups?
Where, in Unisphere, can a Storage Administrator see a host that has not yet been connected to Storage Group?
Where, in Unisphere, can a Storage Administrator see a host that has not yet been connected to
Storage Group?
How much space will be used after the migration ends?
A Storage Administrator wants to migrate a thin LUN to another pool, but accidently creates a
slightly larger thin LUN to be the target for the migration.
How much space will be used after the migration ends?