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

https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_iscsi.1.html

iscsi security show

Display the default authentication and all the initiator specific authentication information.

Hint: Remember that the iscsi command is mostly structured "iscsi noun verb", unlike the fcp command which is structure "fcp verb noun". Example: iscsi initiator show, fcp show initiator.

https://library.netapp.com/ecm/ecm_download_file/ECMM1278642

If no Host Agent is installed, how can the management tool query the host?

IPSec is an encryption transport that can be used to secure any IP traffic including iSCSI.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-06C70D3B-9A06-4D20-B140-EB147B941BDA.html

The data structures that are backed up and restored through SnapVault depend on the primary system.

On systems running Data ONTAP, the qtree is the basic unit of SnapVault backup and restore.

SnapVault backs up specified qtrees on the primary system to associated qtrees on the SnapVault secondary system. If necessary, data is restored from the secondary qtrees back to their associated primary qtrees.

On open systems storage platforms, the directory is the basic unit of SnapVault backup. SnapVault backs up specified directories from the native system to specified qtrees in the SnapVault secondary system.

If necessary SnapVault can restore an entire directory or a specified file to the open systems platform.

The destination system uses a slightly more disk space and directories than the source system.

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

igroup show [ -v ] [ initiator_group ] Displays the nodes in an initiator group and their aliases, set with the fcp wwpnalias command. If no initiator_group is specified, the members of all initiator groups are displayed. You can use the -v option to get a verbose listing.

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.

https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_stats.1.html

http://backdrift.org/man/netapp/man5/na_stats_preset.5.html

Data ONTAP provides some XML files that output a predetermined set of statistics that you can use without having to construct a script or type in a complicated command on the command line.

The preset files are located in the /etc/stats/preset directory. To use a preset file, you add -p filename to your stats show or stats stop command line. You can also add counters on the command line. If any options you specify on the command line conflict with the preset file, your command line options take precedence.

You can also create your own preset files.

You can use the snapmirror resync command to reestablish the connection between the source and the destination. This command is applied after the SnapMirror relationship between the source and destination is broken.

https://library.netapp.com/ecmdocs/ECMP1196991/html/GUID-5D846D24-0903-4982-A429-71AE5C0F9033.html