Q: - What is the maximum distance between a standard clustered pair at 2Bbps? A. 10 meters B. 50 meters C. 500 meters D. 100 meters Correct Answer: C Submitted By:-Uma Email-ID: - kumariuma44@yahoo.in Q: - Which exportfs command will temporally export the resource while ignoring the options specified in the /etc/ exports file? A. exportfs v B. exportfs u C. exportfs a D. exportfs i Correct Answer: D Submitted By:-Uma Email-ID: - kumariuma44@yahoo.in Q: - Is NetApp storage Encryption supported in Data ONTAP 8.1.1 Cluster-Mode? A. No, but you can file a PVR to request support. B. No. it is targeted for a future release of Data ONATP. C. Yes, only with a special license installed. D. Yes, it has been supported since 8.0.1. Correct Answer: A Q: - Which statement describes the results of the SnapMirror resynce command? A. Resynchronization finds the newest common snapshot shared by the two volumes or qtree, and removes all newer information on the storage system on which the command is run. B. Resynchronization will cause the loss of all data written to the destination after the original base snapshot was made. C. Resynchronization will update the snapshot on the destination filer. D. Resynchronization will update the snapshot on the source filer. Q: - If you were troubleshooting and wanted to look at SnapMirror log files, what is the path to these files? A. /vol/vol0/etc/log/snaplog/ B. /vol/vol0/etc/snapmirror/ C. /vol/vol0/etc/snaplog/ D. /vol/vol0/etc/log/ Correct Answer: D Q: - Host multi-pathing describes a ____________ solution that has at least two distinct ______________ paths to a LUN. A. Token ring, physical B. FC SAN, virtual C. FC or IP SAN, virtual D. FC or IP SAN, Physical Q: - Which two will allow you to read and analyze a packet trace file generated by the storage system? (Choose two) A. WireShark B. Pktt C. Netmon D. Eternal View Correct Answer: AC Q: - When using a Protection Manager policy to manage Open systems SnapValut backups on a UNIX server, which three valid objects to include in the data set? (Choose three) A. The entire client B. A directory C. A file D. A qtree ABC Q: - What does it signify if the disks are "not owned" in a FAS2020 system? A. The disks are mailbox disks. B. The disks are spare disks. C. The disks are data disks. D. The disks are not used. D Q: - For each Open Systems platform directory to be backed up to the SnapVault secondary storage system you must execute _____________. A. An initial baseline copy B. A temporary copy C. An incremental copy D. A scheduled update copy Correct Answer: A Q: - Which action will cause a currently in-sync SnapMirror relationship to fail out of sync? A. Running snapmirroe update on the source storage system. B. Running snapmirror release on the source storage system. C. Modifying the /etc/snapmirror.conf file for the relationship on the source storage system D. Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system. Correct Answer: D Q: - Identify the two commands that could be entered on the SnapMirror destination storage system. (Choose two) A. Options snapmirror.access on B. Options snapmirror.resync on C. Snapmirror initialize D. Snap mirror resync Correct Answer: CD Q: - Which storage system command would display the WWPNs of hosts that have logged into storage system using a Fibre Channel connection? A. fcp config B. fcp initiator show C. fcp show i D. fcp show initiator Correct Answer: D Q: - What utility on the storage system will allow you to capture network packet information? A. Snoop B. Netstats C. Pktt D. Traceroute Correct Answer: C Q: - The root admin on the UNIX box receives an "Access Denied" message when he attempts to access a newly mounted qtree. What's the most likely cause of this error? A. The qtree is missing from the /etc/hosts file. B. NFS is turned off on the storage system. C. The qtree is set to ntfs security style. D. The qtree has not been exported. Correct Answer: C Q: - An aggregate is composed of twelve 36-Gigabyte disks. A drive fails and only 72-Gigabyte spare disks are available. Data ONTAP will then perform what action. A. Chooses a 72-Gigabyte disk and use it as is. B. Chooses a 72-Gigabyte disk and right-size it. C. Halts after 24 hour of running in degraded mode. D. Alerts you that there are no 36-Gigabyte disks and wait for one to be inserted. Correct Answer: B Q: - Which statement is true about expanding an aggregate from 32-bit to 64-bit in place? A. All aggregates are automatically converted from 32-bit to 64-bit with the Data ONTAP 8.1 upgrade. B. The expansion is triggered by an aggr convert command. C. The expansion is triggered by adding disks to exceed 16 TB. D. The 32-bit aggregates are degraded and must be Volume SnapMirrored to a new 64-bit aggregates with Data ONTAP 8.1 upgrade. Correct Answer: C Q: - How can you "throttle" SnapValue updates and baseline transfers so that the primary or secondary is not transmitting data as it can? A. Use the k option in the snapvault start or snapshot modify commands. B. SnapVault does not support throttling of network throughout. C. Use the snapvault throttle command. D. Use the k option in the snapvault initialize command. Correct Answer: A Q: - In Data ONTAP, the root user is exempt from those two quotas: ______________. (Choose two) A. User quotas B. Tree quotas C. Root quotas D. Group quotas E. File quotas Correct Answer: A D How to improve the Netapp storage performance? There is no direct answer for this question but we shall do it in several way. If volume/lun present in ATA/SATA harddisk aggregate, then the volume can be migrated to FC/SAS disk aggregate. For NFS/CIFS instead of accessing from single interface, multi mode vif can be configured to get better bandwidth and fault tolerance. Always advised to keep aggr/vol utilization below 90%. Avoid doing multiple volume backup in single point of time. Aggr/volume/lun reallocation can be done to re–distribute the data to multiple disk for better striping performance. Schedule scrubbing and deduplication scanning after business hours. Avoid connecting different types of shelf in a same loop. Avoid mixing up different speeds of disk and different types of disk in a same aggregate. Always keep sufficient spare disk to replace incase of disk failure. Because reconstruction time will take more time and cause negative performance. Keep the advised version of firmware/software which is recommended by netapp. Better to have nearstore functionality to avoid backing up data from source filer. Unable to map lun to solaris server, but solaris server side no issue. How to resolve the issue? FROM STORAGE SIDE: Verify iscsi/fcp license is added in storage Verify iscsi/fcp session is logged in from server side Verify luns are mapped to the corresponding igroup. Verify whether correct host type is mentioned while creating igroup and lun Verify whether correct iqn/wwpn number is added to igroup Verify zoning is properly configured from switch side. How to create the LUN for solaris server? lun create –s size –t solaris /vol/vol1/lunname How to create qtree and provide the security? Qtree create /vol/vol1/qtreename Qtree security /vol/vol1/qtree unix|ntfs|mixed How to copy filer to filer? ndmpcopy or snapmirror What is qtree? Qtree are Logical partition of the volume What is the default snap reserve in aggregate? 5% What is the difference between iscsi and fcp? Iscsi-sending block through(tcp,ip) Fcp-send through fibre medium What is the difference between ndmp copy and vol copy? Ndmp copy –network data management protocol(used for tape backup) Vol copy – is used to transfer volume to same or another aggr What is the difference between ONTAP 7 & 8? In ONTAP 7 the individual aggregate is limited to maximum of 16 TB. Where ONTAP 8 supports the new 64 bit aggregate and hence the size of the individual aggregate extends to 100 TB. What is the difference between ONTAP 7 & 8? In ONTAP 7 the individual aggregate is limited to maximum of 16 TB. Where ONTAP 8 supports the new 64 bit aggregate and hence the size of the individual aggregate extends to 100 TB. What are the steps need to perform to configure SnapMirror? The SnapMirror configuration process consists of the following four steps: a. Install the SnapMirror license on the source and destination systems: license add b. On the source, specify the host name or IP address of the SnapMirror destination systems you wish to authorize to replicate this source system. options snapmirror.access host=dst_hostname1,dst_hostname2 c. For each source volume or qtree to replicate, perform an initial baseline transfer. For volume SnapMirror, restrict the destination volume first: vol restrict dst_vol Then initialize the volume SnapMirror baseline, using the following syntax on the destination: snapmirror initialize -S src_hostname:src_v oldst_hostname:dst_vol For a qtree SnapMirror baseline transfer, use the following syntax on the destination: snapmirror initialize –S src_hostname:/vol/src_vol/src_qtree dst_hostname:/vol/dst_vol/dst_qtree d. After the initial transfer completes, set the SnapMirror mode of replication by creating the /etc/snapmirror.conf file in the destination’s root volume. How do you configure multiple path in Snapmirror? Add a connection name line in the snapmirror.conf file /etc/snapmirror.conf FAS1_conf = multi (FAS1-e0a,FAS2-e0a) (FAS1-e0b,FAS2-e0b) Explain how De-Duplication works? In the context of disk storage, deduplication refers to any algorithm that searches for duplicate data objects (for example, blocks, chunks, files) and discards those duplicates. When duplicate data is detected, it is not retained, but instead a “data pointer” is modified so that the storage system references an exact copy of the data object already stored on disk. This deduplication feature works well with datasets that have lots of duplicated date (for example, full backups). What is the command used to see amount of space saved using deduplication? df –s How do you setup Snapvault Snapshot schedule? pri> snapvault snap sched vol1 sv_hourly 22@0-22 This schedule is for the home directories volume vol1 Creates hourly Snapshot copies, except 11:00 p.m. Keeps nearly a full day of hourly copies How do you shutdown filer through RLM? telnet “rlm ip address” RLM_Netapp> system power off In CIFS how do you check who is using most? Cifs top How to check cifs performance statistics cifs stat What do you do if a customer reports a particular CIFS share is responding slow? Check the r/w using "cifs stat" & "sysstat -x 1". If disk & cpu utilization is more then problem is with filer side only. CPU utilization will be high if more disk r/w time, i.e.,during tapeback up & also during scrub activities. what is the degraded mode? You have parity for failed disks then why the filer goes to degraded mode? If the spare disk is not added within 24hours,then filer will be shutdown auomatically to avoid further disk failures and data loss. Did you ever do ontap upgrade? From which version to which version and for what reason? Yes i have done ontap upgrade from version 7.2.6.1 to 7.3.3 due to lot of bugs in old version. How do you create a lun ? lun create -s -t How do you monitor the filers? Using DFM(Data Fabric Manager) or also using SNMP you can monitor the filer. What are the prerequisites for a cluster? cluster interconnect cable should be connected. shelf connect should be properly done for both the controllers cluster license should be enabled on both the nodes Interfaces should be properly configured for fail over cluster should be enabled What are the scenarios you have for a cluster failover? If disk shelf power or shelf port is down, then failover will not happen. It cannot access the mail box disk. Mail box disk stores the cluster configuration data. Network connections are always initiated by the destination system; that is, SnapMirror and SnapVault pull data rather than push data How do you deal with message "stale nfs file handle" ? This type of error message is seen when a file or directory that was opened by an NFS client is removed, renamed, or replaced. To fix this problem, the NFS file handles must be renegotiated. Try one of these on the client machine: a) Unmount and remount the file system, may need to use the -O (overlay option) of mount. From the man pages: -O Overlay mount. Allow the file system to be mounted over an existing mount point, making the underlying file system inaccessible. If a mount is attempted on a pre-existing mount point without setting this flag, the mount will fail, producing the error "device busy". b) Kill or restart the process trying to use the nonexistent files. c) Create another mount point and access the files from the new mount point. d) Run: /etc/init.d/nfs.client stop; /etc/init.d/nfs.client start e) Reboot the client having problems 55. What are the 3 prominent characteristics of SAS Protocol? a) Native Command Queuing (NCQ) b) Port Multiplier c) Port Selector 57. How does FC Switch maintain the addresses? FC Switch uses simple name server (SNS) to maintain the mapping table 66. How is the capacity of the HDD calculated? Number of Heads X Number of Cylinders X Sectors per track X Sector Size