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Two DS8700 systems have been proposed for a disk-to-disk BC solution. Each system has 200 TB
installed, with a data change rate of 18% per day. Two 2 Gbps CWDM links are in place between the
remote data centers with an average utilization rate of 55%. The proposed solution includes additional
CWDM ports. Which of the following should justify the additional CWDM ports?
A. the Disk Magic configuration report
B. an engineer from thetelcom providing the dark fiber
the bandwidth calculations
Correct Answer: C
An IBM i 7.1 partition has a system ASP that has a combination of Solid State Drive (SSD) units and Hard Disk Drive (HDD) units. The system administrator needs to permanently migrate the logical files that are randomly accessed by the application jobs to the SSDs.
What is the appropriate method for identifying the most randomly accessed logical and physical files?
A. Query the table QSYS2/SYSIXSTAT for files with logical reads greater than U and sequence in descending order.
B. Use WRKACTJOB command to identify the application jobs.For each job, select option 5=Work with, then 14.Display open files, if active, than press Fl 1.
C. From Performance Tools, generate a system report to an output file.Query the output file for logical files with random reads greater than U and sort in descending order.
D. Trace the accessed file data using the TRCASPBAL SET(*ON) ASP(l) command.Print the report with the command PRTTRCRPTTYPE (*FILE) QRDER(*DESC), and look for Random Reads/sec.
Correct Answer: A
During a full system restore the sign on screen is displayed before the restore completes. Which system value is the most likely cause?
A. Restore Abend action (QRSTABD) is set to *SlGNON.
B. Allow Object Restore (QALWOBJRST) is NOT set to *All.
C. Verify Object Restore (QVFYOBJRST) is set to 3 or higher.
D. Job message queue full action (QJOBMSGQFL) is set to *NOWRAP.
Correct Answer: D
The following CL program was created to perform an application backup:
The operator later reports that the backup failed and all of the subsystems had to be restarted. What caused the backup to fail?
A. The backup job was submitted to an inactive subsystem.
B. The job did not have the correct authority\’ to the program.
C. The JOBD for the submitted job does not have authority to the subsystem
D. A MONMSG command is required to allow the subsystems to restart after a failed backup.
Correct Answer: A
A customer using an IBM System Storage DS8700 is facing performance problems. After the analysis by the
technical specialist, the diagnosis indicates that the cache hits may be improved by a cache upgrade. How
can the system be monitored in order to check the benefits of the cache upgrade?
A. using the “vmstat” command on the AIX servers connected via SAN to the DS8700 system
B. look at the IOPS using the DS8700
C. reading the performance reports via Tivoli Storage Productivity Center for Disk
D. generating reports using theTotalStorage Expert
Correct Answer: C