What is the best practice HBA to FA mapping to ensure the required performance of the data warehouse?
A new data warehouse will be hosted on an existing 4-engine VMAX array. The database
server has 4 HBAs connected at 8Gb/s. Due to limited SAN switch ports only port 0 on each
VMAX FA is connected – also at 8Gb/s. The workload is expected to require at least
1700MB/s of reads @ 128KB I/O size. It must maintain performance in case of any major
component failure in the host, switch or array. Assume that the existing workload on the
VMAX does not exceed 350MB/s per port. Also assume that the ports can sustain up to
500MB/s without exceeding 70% utilization. What is the best practice HBA to FA mapping to
ensure the required performance of the data warehouse?
Which port must be open on an EMC Avamar utility node to be able to browse a client file system?
Which port must be open on an EMC Avamar utility node to be able to browse a client file
system?
Which SRDF mode is permitted between the R21 and the R2 sites?
Cascaded SRDF is running in SRDF/A mode from the source (R1) site to the disk-based
secondary (R21) site. Which SRDF mode is permitted between the R21 and the R2 sites?
Which EMC Virtual Storage Integrator feature allows the allocation of new Symmetrix VMAX storage to Virtual Ma
A company uses VMware ESXi Servers and Symmetrix VMAX storage arrays. Which EMC
Virtual Storage Integrator feature allows the allocation of new Symmetrix VMAX storage to
Virtual Machines from the VMware vSphere client?
Which BIOS settings on the ESXi host could help alleviate this performance issue?
A company has a VMware vSphere 5.0 ESXi host using NUMA. This host is experiencing
poor performance. Which BIOS settings on the ESXi host could help alleviate this
performance issue?
how many SHA-1 hash bytes are added to the file cache?
In an EMC Avamar system, for each file that is backed up, how many SHA-1 hash bytes are
added to the file cache?
Which metrics in Performance Manager would be useful in diagnosing the performance issue?
A data warehouse team is reporting poor performance on their batch reports. The database
runs on a Solaris host connected to a DMX-4 array with Fibre Channel drives sized to
support a sequential read workload. Which metrics in Performance Manager would be
useful in diagnosing the performance issue?
Which recommendation helps minimize this performance impact?
A customer requested a point-in-time replica of their Oracle database. You have architected
a TimeFinder/Clone environment to meet the customer’s requirements. However, the
customer immediately notices that queries against the production database are noticeably
slower than normal. Which recommendation helps minimize this performance impact?
What is an EMC Avamar object?
What is an EMC Avamar object?
Which best practice would you recommend to ensure recoverability on the target side?
Your customer has an Oracle 11g environment that requires a database to be recoverable
within a few minutes over an extended distance. Which best practice would you recommend
to ensure recoverability on the target side?