What is the correct alignment?
A company has a SAN environment with VMFS5 hosts attached to an EMC Symmetrix VMAX experiencing poor performance. They observed that the file system subblock size is misaligned.
What is the correct alignment?
Which kind of application does this profile most likely represent?
When using Performance Manager to analyze an application, you notice that the application has a high amount of reads but a very low read hits. The workload is mostly random.
Which kind of application does this profile most likely represent?
What is a likely solution to this problem?
A host with an OLTP workload is configured with five standard devices on an EMC Symmetrix VMAX. In the host LVM, the storage is configured into a concatenated logical volume. The back-end storage consists of Fibre Channel disk drives. The host has two HBAs zoned to two FAs.
The workload hits a ceiling at around 66% of the peak workload requirements with high random reads. At peak times:
Disk director % utilization is low
Host port % utilization is low
Disk I/O per second is low
Current write pending count is high
What is a likely solution to this problem?
Which security feature will satisfy this requirement?
A company needs to comply with data-at-rest security on a server currently in use and connected to an EMC Symmetrix VMAX.
Which security feature will satisfy this requirement?
On an ESXi host, what is the default NMP policy when connecting to an Active/Active array such as Symmetrix?
A company has tasked you with connecting their new ESXi hosts to their EMC VMAX array and will be using Native Multi-Pathing (NMP). You have decided to stay with the default NMP policy for this project.
On an ESXi host, what is the default NMP policy when connecting to an Active/Active array such as Symmetrix?
Which TimeFinder/Clone operation is required?
A customer has asked you to help them create a local restartable clone of production data without putting the Oracle database into hot backup mode.
Which TimeFinder/Clone operation is required?
How is the write pending limit allocated?
EMC Symmetrix VMAX devices 0AB and 019 are allocated to a UNIX server. Devices 0AB and 019 are two-member meta devices:
Meta device 0AB has a capacity of 100 GB
Meta device 019 has a capacity of 200 GB
The storage administrator found that the utilization of device 019 is much higher than device 0AB.
How is the write pending limit allocated?
Which VMware parameter can be modified to improve the LUN discovery process during a rescan?
Storage from an EMC Symmetrix VMAX array has been presented to a number of ESXi servers.
The number of LUNs seen by any ESXi server is less than 30 and the LUN numbers are consecutive.
Which VMware parameter can be modified to improve the LUN discovery process during a rescan?
Which Symmetrix feature should be used to ensure the most dynamic and efficient use of the array with the best
A storage administrator is planning to configure an EMC Symmetrix VMAX array for a few critical Microsoft Windows application servers. The array is running Enginuity 5875 and has a mixture of SATA, FC, and EFD disks installed. The application servers all require a mix of high performance and low performance capacity.
Which Symmetrix feature should be used to ensure the most dynamic and efficient use of the array with the best performance possible for all applications?
How could this concern be addressed?
A company is evaluating SRDF/Star. They are concerned that the RDF daemon represents a single point of failure. How could this concern be addressed?