NetApp vFiler DR with Data ONTAP Simulator Part 8: Create shares on vFiler

This article is part of a series.

In this article a CIFS and a NFS share are created. Unfortunately shares on a vFiler cannot be configured in OnCommand System Manager. Instead the console or SSH has to be used. SSH must be set up first in order to directly connect to the vFiler. You can do so from a session on the first simulator (netapp01). It is possible to run commands on the vFiler from here with vfiler run <name of the vFiler> <command>.

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NetApp vFiler DR with Data ONTAP Simulator Part 7: Synchronous vFiler DR

This article is part of a series.

Note: You can skip this instructions if you only need a asynchronous mirror like described in part 6 and already configured vFiler DR.

In part 6 of this series vFiler DR was created with a asynchronous SnapMirror. This means it takes some time before the data of the vFiler is mirrored to the second simulator. To make sure data is written to the vFiler and its mirror simultaneously you have to create a synchronous SnapMirror. This works only if the volumes of the vFiler have a size of at least 10 GB (as created in part 4). In addition you have to make sure DNS name resolution is working (each simulator has to be able to resolve the other one). If you didn’t configure the DNS settings during initial setup of the simulators (also not configured in part 1) you can do so via OnCommand System Manager (Configuration => Network => DNS). If no DNS server is available you can also add the IPs to the file /etc/hosts on both simulators.

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Measure temperature with Cubietruck und DS18B20 sensor

Note: If you already configured your system and the sensor is not working all the time have a look at your cpu power saving settings.

In contrast to the Raspberry Pi unfortunately the Cubietruck is not as popular. Because of this there are much less instructions for how to use GPIO pins. Goal of this article is to measure the temperatur with a DS18B20 sensor. First of all you need the sensor (e.g. via Amazon or ebay). It has 3 wires: Ground (GND), 3,3 volt (VDD) and signal (DQ).

DS18B20

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NetApp vFiler DR with Data ONTAP Simulator Part 6: Create vFiler and configure vFiler DR

This article is part of a series.

Note: In this article vFiler DR is created with asynchronous replication. If you need synchronous replication only create the vfiler as described in this part and then skip forward to part part 7. Do not follow the steps described in the section “Configure vFiler DR”.

Now it is finally time to create the vFiler on the first simulator (netapp01). You can use OnCommand System Manager

or the command line via SSH.

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NetApp vFiler DR with Data ONTAP Simulator Part 5: DNS Configuration

This article is part of a series.

Note: In case you already configured DNS settings while setting up the VMs (part 2 and 3) you can directly test name resolution with ping.

For the next steps it is advisable that both NetApp VMs are configured correctly. They should at least be able to resolve each other. If you plan to create a synchronous vFiler DR name resolution must work. If not you might get errors like “SnapMirror is unable to setup a multipath connection to vol_vfiler, resorting to the standard single TCP connection.” und “SnapMirror: destination transfer from 192.168.2.66_vfiler_con:vol_vfiler1 to vol_vfiler1 : Error in snapmirror sync mode negotiation.”.

You can choose between 2 DNS configurations: “Configuration with a DNS server” and “Configuration via /etc/hosts”. Make sure to always configure one of these options on both simulators.

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