单项选择题

A customer is planning on establishing a Global Mirror between two Storwize V7000 storagearrays. The customer is planning to lease an IP WAN connection between sites for the tasks andis running a SAP （database） application on Oracle. Which of the following planning considerationsis most important？（）

A.the distance between sites needs to be less than 100 kilometers
B.consistency groups should be created to maintain write order on the remote mirror
C.ensure sufficient bandwidth exists on the link based on average application workloads
D.ensuring a low round trip latency of less than 30ms on the WAN connection is required

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热门试题

单项选择题Astoragespecialistisdiscussingthecustomer’shighavailabilityplananddiscoversthattheyareonly80kilometers（50miles）fromtheintendedsite.Theyrequire7x24x365dataavailabilityinaUNIXenvironmentwithanRPOoftwominutes.TheyhavetwoDS5300systemslocatedatbothsites.WhichofthefollowingIBMstoragefunctionsbestmeetsthecustomer’sbusinesscontinuancerequirements？（）

A.HACMP
B.Volume copy
C.Metro Mirror
D.Global Mirror

单项选择题AnexistingcustomerwithaTivoliStorageManagerbackupenvironmentishavingdifficultycompletingbackupswithinthebackupwindowonmultiplemissioncriticalservers.TheseserversareconnectedtoaDS5300viaanIBM2054-E06director.TheTSMserveralsoconnectstoanIBMTS3310librarywith6LTO-5drivesinstalled.Whatwouldthestoragespecialistrecommendtoaidtheseserversincompletingtheirbackups？（）

A.activate NDMP support on the DS5300 and backup the data across the SAN
B.implement Tivoli StorageFlashCopy Manager to backup the data across the LAN
C.implement Tivoli Storage Manager for Storage Area Networks and backup the data across the LAN
D.implement Tivoli Storage Manager for Storage Area Networks and backup the data across the SAN

单项选择题Astoragespecialistisassessingacustomer’stapebackupenvironment.Whichofthefollowing questionswouldbethemostappropriatequestiontoidentifythecustomer’senvironment？（）

A.Has there been any recent loss of data？
B.How many tape drives are in the Library？
C.What tape technology is currently being used？
D.What software is being used for restoring the data？

单项选择题Acustomerrequiresoff-sitestoragefor500GBpernightinbackuptapes.Thebackupsiteis560kilometers（350miles）away.Thecustomerdoesnotrequirethebackupsitetoruntheapplicationintheeventoffailureatthemainsite.Whatistheleastexpensivestrategyforthedatacentertoimplement？（）

A.make online image backups
B.install Global Mirror at the backup site
C.ship nightly backup tapes to the remote site
D.install Tivoli Storage Manager （TSM） and a tape drive at the backup site

单项选择题AspartofaBusinessContinuanceproject，acustomerhasestablishedreplicationfrom3spokestoaDRhubwithProtecTIER7610appliances.Eachofthe3spokesisbackingup500GBofnominaldatadailywithanaveragededuplicationratioof10：1.Thereplicationwindowis12hours.Thedatachangerateis15%.WhatistheapproximateminimumrequiredbandwidthforeachWANconnection？（）

A.1.2MB/s
B.7.5MB/s
C.12MB/s
D.75MB/s