Your customer uses quotas on existing Windows server and wants to implement tree quotas on their new Celerra. The data is strictly home directories with no .pst files. Which tool would you use to migrate this filesystem from the Windows server to the Celerra?
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The customer is reporting many Kerberos credential error messages in the server log file for server_4. They are using NAS v.5.4. What should be done to get new credentials?
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FFF Industries notices that NIS is used in the resolving order before usermapper in NAS 5.4. They ask to change the resolving order, they would like to have usermapper first. What would you tell them?
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Which two [2] network protocols does the Celerra support?
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Your customer has implemented HighRoad and they are having performance problems. What could be the cause?
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Click the Exhibit button to see the error that is occurring when trying to register all four Data Mover HBAs. Why did CLARiiON CX600 array only register two of four Data Mover HBAs instead of all four?
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Which Datamover passwd file entry is INCORRECT?
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The customer has just created a CIFS server, he is now trying to create a vdm on the data mover and is unable to. This is the command he used to create the CIFS server: server_cifs ENG -add compname=EMC2,domain=corp.emc.com Why is he unable to create the VDM?
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You have to migrate a multiprotocol filesystem from a NetApp filer to an NS702G. The customer uses NIS for centralized user management. What would your method be for migrating the filesystem?
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You would like to run Celerra Replicator on one of your production file systems. You found from watching the last incremental backup that you have a change rate of 2% a day on that file system. The file system size is 100 GB. You want to calculate the size of the SavVol to be able to continue with replication even if you have a 4 day network outage between the source and destination site. What size must the SavVol be to accommodate the changes?
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During an iSCSI install you installed the Microsoft Initiator, Configured iSCSI targets, iSCSI LUNs and completed the masking. You go into the Initiator, you can see the target and log-in but you can not see any LUNs. What could be the problem?
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Click the Exhibit button. What is the minimum number of file systems required to support the VTLU in the diagram?
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You just created a user named user1 on the control station adding it to the nasadmin group. You created an entry in the nas_acl table for that user. You changed the password and were able to log in with that user. When you look at a nas_server -l you don"t see any datamovers. What else needs to be done to allow user1 to be able to see the datamovers? [user1@ns702g_cs user1$ nas_server -l id type acl slot groupID state name
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Which characteristic has the most impact in determining Celerra system performance?
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The Honey Baking company would like to access business critical Windows Data, in all branch offices, in the event their Windows Domain becomes unavailable. Which configuration setup would you recommend with NAS 5.4?
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Click the Exhibit button. The Storage Administrator notices some available space on the PFS file system. He attempts to write a new file but is unable to do so. He checks mounts and exports and sees the file has r/w permissions. Why is he unable to write a new file?
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You would like to run Celerra Replicator on one of your production file systems. You found from watching the last incremental backup that you have a change rate of 1% a day on that file system. The file system size is 1TB. You want to calculate the size of the SavVol to be able to continue with replication even if you have a 4 day network outage between the source and destination site. What size must the SavVol be to accommodate the changes?
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Click the Exhibit button. You are using the MMC Snapin elerra Unix Attributes Users/Groups Migration tool to Migrate Unix user UID"s from NIS passwd file. Users have the same username in UNIX and Windows. The tool will not migrate any users, however you are able to manually assign UID and GID through Active Directory. Given the passwd file being used and the setting of cifs.resolver param, what is the problem?
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Click the Exhibit button. You are doing a Celerra SRDF Restore using nas_rdf command on R2 site. SRDF is Active/Passive. Check the exhibit to see the message you receive on your console. Which command does the script then tell you to run from the Remote site?
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You configured a Fail-Safe Network (FSN) using two devices connected to two different switches. What is an important issue to confirm with the customer"s switch configuration?
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Your customer has been monitoring their McAfee/CAVA application and although they have 5 anti-virus servers, they have noticed increasing service times and a longer "collector queue". What would you recommend?
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Acme Network Corp. is using Celerra Replicator. They are replicating five of their production critical FS to a remote datacenter. Because of the small backup window the Storage Administrator decides to backup the file systems on the secondary site using NDMP Backup. The NDMP fails to backup the remote file systems of IP Replication, but there is no problem backing up the source file systems. What needs to be done to correct the problem?
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You have just completed a basic implementation of an NS700 with 30 FC and 30 ATA drives. The customer has been using the EMC CLARiiON and Connectrix products for some time. She mentions that they are looking to lower the backup storage cost, which includes their Exchange 2003 Servers. If asked, which two [2] features are to be recommended?
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Click the Exhibit button for the commands the customer used. Your customer is using Celerra Replicator and wants to use one of his replicated file systems for testing purposes on the secondary site. Therefore he needs the primary and the secondary file systems to be r/w accessible. After a successful test he would like to continue with the normal file system replication. What are the steps to resume the replication process after the successful testing phase?
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Which statement is true?
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Your customer has a Netapp filer that they want to migrate to their new Celerra. They are running NFS on the box and you are using CDMS to migrate the data. Which command is used to mark the directory online to keep from migrating their .snapshot directory?
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The Windows administrator of ABC Corp. has changed local security policy to audit logon events from success to failure to identify logon problems reported from certain users. The company does not allow automatic security updates in their domain. After one week the System Administrator has not received any logon entry in the Eventlog from the Celerra CIFS server within that domain. How would you troubleshoot the problem?
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NDMP2Disk has been implemented for the customer. The customer wants to copy their backups to tape. What must they do?
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You are planning to create a remote Replication on the upcoming weekend and you want to estimate the amount of time the initial fs_copy takes. Select the right formula to calculate the time
(0.8 = Network overhead. The assumption is the PFS is full.)
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Your customer has recently purchased eight 146GB drives for his DMX that will be configured in a RAID5 3+1 configuration. How would you suggest the customer configure new file systems for best performance?
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You are installing an NS702G. The install script reports there are no datamovers. You look in the cabinet and verify the datamovers are both installed and powered on. What could be the problem?
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Which WWN listed would be correct for a NS704G?
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Your customer has a Windows NT domain environment and a Celerra (v5.1). The customer would like to upgrade this domain to Windows 2003 and use SMB Signing. What should be done on the Celerra side?
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The customer states that their windows clients are experiencing poor performance when viewing properties of a Celerra network drive. Which stats would you look for in the server_cifsstat command?
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Click the Exhibit button. View the fs_dhsm information for this file system. Which type of data would be backed-up?
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Your customer has experienced network problems on his remote IP replication using Celerra Replicator on NAS code 5.4. The customer changes the interface of the replication session and uses a dedicated network. Which steps are needed?
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Click the Exhibit button. The GGG Corporation is using SRDF/A and had to failover to the second site. There are NS700G"s installed on both sites. Your colleagues issued the command to perform a restore. What should be done next?
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The customer would like to implement CAVA and a DHSM solution in his W2K3 environment. The customer is concerned about the time it takes to write a file to a DHSM drive on a secondary storage. What would you suggest to address this concern?
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The system administrator of YPD corporation is monitoring the remote IP Replication of their 10 production file systems using NAS code 5.3. He notices that the modification rate from two of the file systems has increased dramatically. He also notices that the SavVol on the primary site is nearly full. What will fix the problem?
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During a CDMS migration you notice errors in the server_log indicating you can not access myfile.xls. You are running the migration with a Domain Admin account. What other group must you be a member of?
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Several file systems were replicated. After customer verification, the replicated file systems were put into production. An hour later, the datamover panicked causing a reboot. After the reboot, users started complaining of missing files on one file system. The customer thought it was an unsuccessful replication. We found the reported missing files in the lost+found directory. What could have caused the move?
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The JJJ Company has migrated data with sync from a UNIX file system to a Celerra and exported the file system for Windows. They now have no CIFS access to some paths in their directory structure, but they can still access it with a UNIXHost. You have checked the CIFS permissions. What else could be the problem?
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Which tool should be used to copy CIFS filesystem ACL"s?
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Click the Exhibit button. Why does the Celerra NOT boot up?
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Your customer recently added a new department of approximately one hundred people. The new department"s data shares were created on the existing Celerra currently serving one thousand users. Only the new users are experiencing performance problems when accessing the data shares. The Celerra is configured with a single, four port EtherChannel trunk using MAC addressing statistical load balancing. Your customer has reported that one of the interfaces in the trunk has three times the packet count of the other ports in the trunk. What might be causing the performance problem?
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Your customer has a CFS running 5.1 NAS code on it and wants to use Celerra Replicator to migrate it to their new CNS running 5.4. The new CNS will have larger filesystems and more drives attached. The environment is using NFS only with NIS for authentication. Select two [2] changes that need to be made prior to the migration to use Celerra Replicator?
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Your customer would like to add a NAS head (NS700G) to their existing CX700 CLARiiON array. The utilization of all of the disks in the array is roughly 50%. Navisphere Analyzer reports that the read throughput is typically equal to the cache hits/sec. No forced flushing is occurring. The workload on the hosts that are using the array is large, sequential read I/O. You are asked what the performance implications would be of adding the NAS device to the exiting SAN. What is your response?
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Which option would optimize the recovery of a single file located in the middle of a tape set?
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What does the TCP Receive Window size setting specify?
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The customer states they have configured Legato Networker with NDMP using the tar format. However, the backup administrator is complaining that they cannot restore a certain file. After reviewing the server logs, an error message was found during the backup "NDMP: 3: Can"t convert filename using the specified NDMP.dialect, or invalid utf8 filename". What must be done to restore the file?
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HHH Company, a sub division of WWW Corporation, uses a Celerra integrated into their Windows ADS. It is configured with 2 DataMovers using internal Usermapper for authentication. They are part of corporate ADS, which contains 98 sub domains and serves up to 130,000 employees worldwide. After 3 weeks the System Administrator tells you that some users are unable to log on to a share, which is on DataMover 2. You checked the
-running internal Usermapper.
-exported file system size is used by 10%.
- root file system size of the DataMover 2 is used by 2% Everything looks good. What is the cause of the problem?
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The customer has recently configured E-mail notification on the Celerra. When they test the functionality, they notice the Control Station is unable to generate a notification that specifies an e-mail address as its destination. Upon further investigation the message is found in the Control Station"s root user mailbox. What is the issue?
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The TTT Company is using a mixed protocol environment. They have exported their file systems to UNIX and CIFS. They do not have access with CIFS to some paths in their directory structure. However, they do have access with their UNIX Hosts. The paths are absolute symbolic links. You have checked the CIFS permissions. What is the problem?
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What is supported by server_archive?
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ABC Inc. is using SUN Directory Services. The domain is named "weare" and used for user authentication. DataMover 2 is set to use it and you have checked the nsswitch.conf file. The command "ypcat -d weare passwd" results with following error message: "No such map passwd.byname. Reason: Can"t bind to server which serves this domain." What is the reason?
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Click the Exhibit button. Your customer would like to better understand how AVM automatically creates filesystems. Given this CLARiiON configuration, how will AVM satisfy the following file system request (assuming no file systems already exist). nas_fs -n testfs1 -create size=500G pool=clar_r5_performance -option slice=yes
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Your customer would like to use ATA drives for their SnapSure SavVol. The I/O access pattern on the PFS is random read. They plan to access the checkpoints randomly as well. What would you recommend?
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Acme Network Corp. is using a Celerra Replicator. They are replicating five of their production critical FS to a remote datacenter. Because of the small backup window the Storage Administrator decides to backup the file systems on the secondary site using NDMP Backup. The NDMP fails to backup the remote file systems of IP Replication, but there is no problem backing up the source file systems. What needs to be done to correct the problem?
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Click the Exhibit button. Your customer recently configured new network connections on his newly installed Celerra. He can access data on all interfaces but is reporting performance problems. Your customer sends you ifconfig outputs from the Celerra and client machines. What could be causing his performance issues?
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Your customer has implemented a new FS Replication using the Celerra Replicator GUI in NAS version 5.4. He complained that the Replication runs outofsync. What could be a possible reason?
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The customer has just created a CIFS server, he is now trying to create a vdm on the data mover and is unable to. This is the command he used to create the CIFS server: server_cifs ENG -add compname=EMC2,domain=corp.emc.com Why is he unable to create the VDM?
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You have configured a SHARE level security file system, and it has been running for 6 months. The customer wants to add the HOME directory feature to that file system. You enable this service and it does not work. Why?
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Click the Exhibit button to see the error that is occurring when trying to register all four Data Mover HBAs. Why did CLARiiON CX600 array only register two of four Data Mover HBAs instead of all four?
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Which two [2] network protocols does the Celerra support?
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You need to migrate your customer"s filesystem from a Windows Server to a new Celerra. The customer"s data includes a lot of .pst files and they need to do this with as little down time as possible. Which tool would you use to migrate this filesystem?
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Click the Exhibit button. SRT - Service Response Time - time it takes the server to send the reply Your customer is experiencing poor performance when accessing data from the Celerra CIFS shares. What conclusion can be made given the Ethereal capture shown?
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What does the TCP Receive Window size setting specify?
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Click the Exhibit button. A file system has an acl of 432. Which acl would grant delete privilege to all operators?
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The customer has recently configured E-mail notification on the Celerra. When they test the functionality, they notice the Control Station is unable to generate a notification that specifies an e-mail address as its destination. Upon further investigation the message is found in the Control Station"s root user mailbox. What is the issue?
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What is supported by server_archive?
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Your customer is concerned that the memory requirements for SnapSure and Celerra Replication on the same Celerra may affect the performance characteristics of other Celerra applications. The customer is planning to checkpoint and replicate the following filesystems. For planning purposes (on the Primary Celerra only), you estimate that the SavVol sizes will be 10% of the filesystem size. Estimate the amount of memory that will be required on the Celerra for SnapSure and Celerra Replicator. Planning one checkpoint for each of the following filesystems PFS1 - 50GB PFS2 - 220GB PFS3 - 157GB Planning replication of the following filesystems to a remote Celerra Replicate1 - 135GB Replicate2 - 76GB
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PPP Corp reports that some of the Windows 2003 users are NOT able to access CIFS shares on DataMover 2. DataMover 3 is working fine. EMC Technical Support asks you to issue the following command: server_kerberos server_2 -ccache -flush Which cached information is deleted from server_2?
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Click the Exhibit button for the commands the customer used.
Your customer is using Celerra Replicator and wants to use one of his replicated file systems for testing purposes on the secondary site. Therefore he needs the primary and the secondary file systems to be r/w accessible. After a successful test he would like to continue with the normal file system replication. What are the steps to resume the replication process after the successful testing phase?
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The DDD company has recently upgraded their NS700G to NAS 5.4 . They use Exchange 2003 on Celerra iSCSI LUNs. The storage administrator wants to replicate a consistent state of his Exchange 2003 storage groups to a secondary server. What would you recommend he use?
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HHH Industries is using a Windows 2003 Active Directory. At their headquarters they are using DFS with two clustered Windows 2003 servers. Each branch office has an NS500 and several Windows Servers for file and print services. What would you suggest they use at each branch office for DFS?
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Click the Exhibit button. What is the minimum number of file systems required to support the VTLU in the diagram?
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Your customer has a CFS running 5.1 NAS code on it and wants to use Celerra Replicator to migrate it to their new CNS running 5.4. The new CNS will have larger filesystems and more drives attached. The environment is using NFS only with NIS for authentication. Select two [2] changes that need to be made prior to the migration to use Celerra Replicator?
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You would like to run Celerra Replicator on one of your production file systems. You found from watching the last incremental backup that you have a change rate of 1% a day on that file system. The file system size is 1TB. You want to calculate the size of the SavVol to be able to continue with replication even if you have a 4 day network outage between the source and destination site. What size must the SavVol be to accommodate the changes?
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Your customer would like to use SnapSure to create checkpoints of several critical filesystems with a sequential I/O access pattern. There is the perception that SnapSure will degrade performance for these critical filesystems. Where will your customer experience the greatest performance impact with SnapSure?
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Your NS704G customer is using the default CLARiiON "prefetch multiplier" and "segment multiplier" settings. In most all cases, what will be the size of the prefetched data for the Celerra?
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Your customer has a Netapp filer that they want to migrate to their new Celerra. They are running NFS on the box and you are using CDMS to migrate the data. Which command is used to mark the directory online to keep from migrating their .snapshot directory?
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The Backup Administrator is attempting to restore files to a file system managed by hard quotas. However, the quota limit is exceeded and the files are not restored.
What must the Backup Administrator do to recover the files?
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Click the Exhibit button. Which type of data would be backed-up using a CIFS network backup?
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Click the Exhibit button. Users can map to share ufs1 but no one can write to it. The NT admin account belongs to the local admin group. How would you fix this problem?
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Click the Exhibit button. You are doing a Celerra SRDF Restore using nas_rdf command on R2 site. SRDF is Active/Passive. Check the exhibit to see the message you receive on your console. Which command does the script then tell you to run from the Remote site?
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You are planning to create a remote Replication on the upcoming weekend and you want to estimate the amount of time the initial fs_copy takes. Select the right formula to calculate the time
(0.8 = Network overhead. The assumption is the PFS is full.)
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The Celerra iSCSI LUNs are visible on the Windows hosts. The formatting of the LUNs stops at 100% and never fully completes. What is the issue?
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You are using SRDF to migrate all Celerra Volumes from a Symmetrix 8830 to a new DMX 2000. Which NAS database files require changing to recognize the volumes on the new DMX 2000?
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You are installing an NS702G. The install script reports there are no datamovers. You look in the cabinet and verify the datamovers are both installed and powered on. What could be the problem?
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Click the Exhibit button. The GGG Corporation is using SRDF/A and had to failover to the second site. There are NS700G"s installed on both sites. Your colleagues issued the command to perform a restore. What should be done next?
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BBB Inc. set up nine file systems with different sizes for different purposes. They are exported as shares for Windows Systems on a Celerra. For distributed administration, they want to get access to different paths in all nine file systems over one share export. File system three (fs3) should be used for this. What needs to be done to make it work?
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The customer states that their windows clients are experiencing poor performance when viewing properties of a Celerra network drive. Which stats would you look for in the server_cifsstat command?
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A customer has upgraded his NS700 to NAS 5.4 code and would like to implement backup to disk with RAID 3 on his new ATA drive shelf. He will use the user defined template option. Which method will the system use to bind the LUNs?
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NDMP2Disk has been implemented for the customer. The customer wants to copy their backups to tape. What must they do?
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Your customer has been monitoring their McAfee/CAVA application and although they have 5 anti-virus servers, they have noticed increasing service times and a longer "collector queue". What would you recommend?
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A customer complains of slow performance with fs_copy and fs_replicate. Analysis of tcpdump shows very high retransmission rate. Param RCP tcpwindow is currently set to default. Round trip latency is about 3ms. The customer wants about 5MB/sec throughput. What would be the most probable tcpwindow size to use to improve performance?
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You have set the local security policies on the source Windows 2003 server and rebooted in preparation for a CDMS migration. You log into another server as the migration user in the domain admins group. You test access to the source by trying to map to the source share and get an access denied error. What is the cause of this error?
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Click the Exhibit button. Why does the Celerra NOT boot up?
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Your customer has a Windows NT domain environment and a Celerra (v5.1). The customer would like to upgrade this domain to Windows 2003 and use SMB Signing. What should be done on the Celerra side?
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The Honey Baking company would like to access business critical Windows Data, in all branch offices, in the event their Windows Domain becomes unavailable. Which configuration setup would you recommend with NAS 5.4?
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Click the Exhibit button. Which stripe volume would provide better performance, and why; v136 or laserct500stripe?
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Click the Exhibit button. Your customer is using the File Retention Capable Filesystem (CWORM) in NAS Code 5.4. He is connecting to a SUN client. The Storage Administrator detects the file "filename" has a wrong expiration date. Which statement is true?
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Your customer has experienced network problems on his remote IP replication using Celerra Replicator on NAS code 5.4. The customer changes the interface of the replication session and uses a dedicated network. Which steps are needed?
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The LLL Industries are using File Retention Capable Filesystem (CWORM) with NAS 5.4 on a Celerra File system. The CEO has been using it for a while and has saved a lot of files to it. He tried to delete some files, the delete failed. He asked System Administration to delete them immediately. What should be done first?
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Which tool should be used to copy CIFS filesystem ACL"s?
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The Backup Administrator for the customer has left the company. Their user account has been removed from the domain. A new Backup Administrator has been found and their user account has been added to the Domain Administrators Group. However, the new Backup Administrator is now receiving alerts that some of the NAS file system backups are failing. What should be checked first to ensure correct operations?
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The Windows administrator of ABC Corp. has changed local security policy to audit logon events from success to failure to identify logon problems reported from certain users. The company does not allow automatic security updates in their domain. After one week the System Administrator has not received any logon entry in the Eventlog from the Celerra CIFS server within that domain. How would you troubleshoot the problem?
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Which statement is true?
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Your customer has recently purchased eight 146GB drives for his DMX that will be configured in a RAID5 3+1 configuration. How would you suggest the customer configure new file systems for best performance?
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Click the Exhibit button. Your customer would like to better understand how AVM utomatically creates filesystems. Given this CLARiiON configuration, how will AVM satisfy the following file system request (assuming no file systems already exist). nas_fs -n testfs1 -create size=500G pool=clar_r5_performance -option slice=yes
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You configured a Fail-Safe Network (FSN) using two devices connected to two different switches. What is an important issue to confirm with the customer"s switch configuration?
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The customer states they have configured Legato Networker with NDMP using the tar format. However, the backup administrator is complaining that they cannot restore a certain file. After reviewing the server logs, an error message was found during the backup "NDMP: 3: Can"t convert filename using the specified NDMP.dialect, or invalid utf8 filename". What must be done to restore the file?
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The TTT Company is using a mixed protocol environment. They have exported their file systems to UNIX and CIFS. They do not have access with CIFS to some paths in their directory structure. However, they do have access with their UNIX Hosts. The paths are absolute symbolic links. You have checked the CIFS permissions. What is the problem?
Exam E20-860 - admin post to:2017-07-20 read more