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EMC E20-850 Dumps

EMC
CLARiiON Implementation Engineer Expert
EMC
CLARiiON Implementation Engineer Expert

Questions & Answers for EMC E20-850

Showing 1-15 of 75 Questions

Question #1 - Topic 0

Which four [4] Clone-related operations must wait until the clone reverse synchronization is
complete?

A. Add another Clone to the Clone Group

B. Create a new Clone Group on the array

C. Synchronize any Clone in the Clone Group

D. Delete a different Clone Group on the array

E. Remove the Clone that is reverse synchronizing

F. Reverse synchronize any clone in the Clone Group

Question #2 - Topic 0

LBC Ltd has implemented a Disaster Recovery solution between sites A and B, 20 km
apart. The company has 30 LUNs mirrored with synchronous MirrorView. It recently had
several power interruptions on the primary site, and is concerned about lengthy mirror
resynchronization. You explained the function of the Write Intent Log (WIL), and the
customer wishes to use the WIL with all 30 mirrors. You run Analyzer during a period of
moderate activity, and notice that the 30 LUNs average 200 IOPs each. What is your
advice to the customer?

A. Use the Write Intent Log for the 10 largest Mirrors only

B. Use the Write Intent Log for the 10 smallest Mirrors only

C. Use the Write Intent Log for all 30 Mirrors to maximize protection

D. Add two extra LUNs to the Write Intent Log and use it for all 30 Mirrors

Question #3 - Topic 0

A. lputil

B. netstat

C. elxcfg --emc

D. SAN surfer Utility

Question #4 - Topic 0

MMD Shipping uses MirrorView/A to replicate its primary production environment. Recently
MMD has been experiencing longer data transmission times for unknown reasons. The
customer suspects something may have caused the problem when it recently modified the
update characteristics of the production application. What is the most likely cause of the
problem?

A. Poor report query design

B. Insufficient array performance

C. Insufficient network bandwidth

D. Low write locality of the application

Question #5 - Topic 0

The DLC Company is planning to install a CX700 with SnapView. DLC has purchased 25
73 GB 10 krpm disks. DLC plans to have a 150 GB data LUN on each of five 4+1 RAID 5
groups. Your task is to provision the Reserved LUNs for SnapView Snapshots which will be
used for backups. How do you configure the LUNs?

A. Bind all the Reserved LUNs on one RAID Group, and assign them to the Source LUNs

B. Bind all the Reserved LUNs across RAID Group, and assign them to the Source LUNs

C. Bind the Reserved LUNs across RAID Groups. SnapView will assign them to the Source LUNs

D. Bind all the Reserved LUNs on one RAID Group. SnapView will assign them to the Source LUNs

Question #6 - Topic 0

FM Corp has a CX500 in Boston. It is mirrored with MirrorView over IP to a CX500 at a
remote site, 20 miles away in Newton. FM Corp would like to add an NS700G to both
existing CX500s. Which statement is correct?

A. An NS700G is not supported in this configuration

B. An NS700G can be attached to each the Boston and Newton site

C. An NS700G can be attached to the Newton site but not the Boston site

D. An NS700G can be attached to the Boston CX500 but not the Newton site

Question #7 - Topic 0

Your customer, NCM, is concerned about the performance effects of SnapView on its
Source LUNs. Which actions do you take to determine the extra load?

A. Load Analyzer. View the number of writes to the Reserved LUNs. This equals the extra write load on the Source LUNs

B. Load Analyzer. View the number of reads from the Reserved LUNs. This equals the extra read load on the Source LUNs

C. View the Session Properties in Navisphere Manager. Check the Number of Writes from the Reserved LUN Pool. This equals the extra read load on the Source LUNs

D. View the Session Properties in Navisphere Manager. Check the Number of Writes from the Reserved LUN Pool. This equals the extra write load on the Source LUNs

Question #8 - Topic 0

Under which circumstance should a customer consider decreasing pre-fetch values?

A. Heavy sequential reads are expected

B. I/O request sizes are small (less than 32KB)

C. I/O sizes larger than that of the maximum pre-fetch value are used

D. Host sequentiality is broken up due to use of a striped volume on the host

Question #9 - Topic 0

Data Corp Solutions needs a remote replication Exchange Solution. Currently the company
is supporting 800 users and are expected to grow to 1600 users by next year. Four Storage
Groups will be used to manage the user mailboxes. RPO is 20 minutes and the sites are
five miles apart connected by two T1 connections. Which solution would best fit its
requirement?

A. Create a MirrorView/A solution using Consistency Groups. Set the update interval to 10 minutes

B. Create a MirrorView/S solution dividing their LUNs between SPA and SPB using Consistency Groups

C. Create a MirrorView/S solution placing all LUNs for an Exchange Storage Group on either SPA or SPB

D. Create an Incremental SAN Copy solution dividing their LUNs between SPA and SPB, starting copies at 20 minute intervals

Question #10 - Topic 0

Click the Exhibit button. ABC Corp has one HP-UX server with LVM connected to the
headquarters CX600 with mirrors on the remote site. The filesystem on the CLARiiON LUN
is rapidly running out of space and needs to be expanded. Which action should be taken?

A. Create a second LUN, present it to the server, add the disk in LVM and expand the filesystem

B. Create a metaLUN on the primary and on the secondary, expand the disk and then expand the filesystem

C. Destroy the mirror, create a metaLUN, expand the disk, do the same on the remote, recreate the mirror and expand the filesystem

D. Create a second LUN, do the same on the remote site, create a mirror with this LUN, present the primary to the server, add the disk in LVM and expand the filesystem

Question #11 - Topic 0

GMN Corp is deploying RM/SE 2.2 for its SQL 2000 Environment. GMN is attempting to
mount clone based replica on the mount server. The mount fails. RM/SE config checker
was run. It did not report any problems with the mount server configuration. What is the
reason?

A. Production server may be a clustered node

B. Either of the servers may have Terminal Services installed

C. SQL patch is different on the mount and production servers

D. At least one FC cable connecting Mount Server to Fabric may be damaged

Question #12 - Topic 0

SIME fails to replicate the DBs on the production host. Which steps allow the job to
complete?

A. Clear any -1018,1019, and -1022 errors in production host system log and restart the job

B. Clear any -1018,1019, and -1022 errors in the production host application log and restart the job

C. Clear any -1018,1019, and -1022 errors in the backup/recovery host system log and restart the job

D. Clear any -1018,1019, and -1022 errors in the backup/recovery host application log and restart the job

Question #13 - Topic 0

You use Navisphere Analyzer to determine the current performance of the 4+1 RAID 5
application LUNs used by the RRM Company. The customer uses a CX700. Each LUN is
on a dedicated RAID Group consisting of 10 krpm 73 GB disks. Your analysis indicates that
the response time for the LUNs varies between 10 ms and 35 ms during the day. You also
find that the company is running between 350 and 500 IOPs each. The write/read ratio is
around 33/67. Average seek distance on their 200 GB LUNs is 15 GB. RRM wants to add
SnapView to the environment. RRM's goal is to use Snapshots taken every two hours to
restore the data in case of corruption. The customer asks for your recommendation. One of
the factors you consider is the performance impact of using Snapshots. What do you
estimate the impact to be?

A. An additional read load of 100 IOPS on each Source LUN caused by the COFW process

B. An additional write load of 100 IOPS on each Source LUN caused by the COFW process

C. An additional read load of 1000 IOPS on each Source LUN caused by the COFW process

D. An additional write load of 1000 IOPS on each Source LUN caused by the COFW process

Question #14 - Topic 0

XYZ Corporation has been using a CLARiiON to support the data requirements on its
Windows 2000 File and Print Cluster. XYZ has just decided that it would create a more
flexible environment if the servers booted from SAN. What will XYZ need to do to create a
supported boot-from-SAN Windows 2000 Cluster environment?

A. Expand the existing LUNs and use the additional space to mirror the System and Boot Partitions

B. Create boot LUNs, add them to the existing Storage Group and mirror the System and Boot Partitions to the new LUNs

C. Add two new HBAs, add them to the existing Storage Group, create boot LUNs, add them to the existing Storage Group and mirror the System and Boot Partitions to the new LUNs

D. Add two new HBAs, manually register them, add them to a new Storage Group, create boot LUNs, add them to the new Storage Group and mirror the System and Boot Partitions to the new LUNs

Question #15 - Topic 0

Your account has a running RMSE configuration. The account's storage administrator has
successfully replicated five Clones, but the administrator has exhausted the account's
current LUN pool. The administrator wants to add an additional two Clone LUNs to the
configuration. The administrator adds the LUNs to the storage group. Next the
administrator starts a Clone replication job with Navisphere, and it fails. Which action will fix
the problem?

A. Run RMSE Discover LUNs option

B. Run the RMSE applications discover option

C. Go to the RMSE tools tab and click refresh now

D. Check that CPL's are allocated correctly. Reboot the Host system

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