How to Pass the Netapp NS0-155 Exam: Comprehensive Data ONTAP 7-Mode Administrator Guide and Tips

https://library.netapp.com/ecm/ecm_download_file/ECMM1278633

By aligning the performance of the source and destination, optimal data transfer (aka replication) rates can be attained. Flexvols don't matter, and there is no measurable difference between the performance of a network over a 30m or 3m cable.

http://www.netapp.com/us/system/pdf-reader.aspx?m=tr-3786.pdf &cc=us

Trick question.... Depends on the array and the maximum shelves and disks and aggregate size, which can change over time. But a volume can never be greater than the aggregate - save for a new feature in 8.2 called Infinite Volume that is not covered by this exam.

Both ‘warn you that there are no available spares from the proper pool’ and ‘halt after 24 hours if spare disk are not added to the proper pool’ are correct answers. However, since Data ONTAP alerts you first, 'warn you that there are no available spares' is the best answer.

https://library.netapp.com/ecm/ecm_download_file/ECMP1196912

iscsi status - displays current status of the iSCSI service.

http://wafl.co.uk/iscsi/#sthash.GzOHA2Tj.dpuf

In takeover mode, this network interface assumes the identity of the network interface on the partner

http://www.wafl.co.uk/tag/ifconfig/#sthash.3rsjaDZD.dpuf

For the partner interface configuration to be persistent across reboots, you must include the ifconfig command in the /etc/rc file

http://hd.kvsconsulting.us/netappdoc/801docs/html/ontap/nag/GUID-525FCF4E-109D-4E6F-9256-C6E56438CA9A.html

https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_lun.1.html

lun show [ -v | -m | -c ] [ all | mapped | offline | online | unmapped | staging

| -g initiator_group | -n node | -l vol_name | lun_path ]

Displays the status (lun_path, size, online/offline state, shared state) of the given LUN or class of LUNs. With the -v option supplied, additional information (comment string, serial number, LUN mapping, HA Pair Shared Volume Information) is also displayed. With the -m option supplied, information about lun_path to initiator_group mappings is displayed in a table format. With the -c option supplied, information about LUN cloning status is displayed.

A specific LUN can be indicated by supplying its lun_path. When an initiator_group is specified, status is reported for all LUNs that are mapped to the initiator group. When a node is specified, status is reported for all LUNs that are mapped to initiator groups which contain that node. When staging is specified, information about the temporary LUNs preserved in the staging area is reported. When vol_name is specified, status is reported for all the LUNs in that volume.

Mapped LUNs are ones with at least one map definition. A LUN is online if it has not been explicitly made offline using the lun offline command.

Startup commands for your storage system are stored in the /etc/rc file. The /etc/rc file contains commands that the storage system executes at boot time to configure the system.

Commands in the /etc/rc file configure the storage system to:

Communicate on your network

Use the NIS and DNS services

Save the core dump that might exist if the storage system panicked before it was booted

https://library.netapp.com/ecmdocs/ECMM1278265/html/sysadmin/accessing/concept/c_oc_accs_systemstartup-etc-rc-file.html#c_oc_accs_system-startup-etc-rc-file

https://library.netapp.com/ecmdocs/ECMP1196889/html/GUID-83A15F85-92A1-4EA8-A9EC-B9E0E2269E37.html