This NAS server allows you to configure the hard drives in various ways, the first of which is the “standard” mode, that is, we will have the two separate hard drives as totally independent units and that each of them will have the size of its own hard drive. If disk 1 is 500GB and disk 2 is 1TB, they will have it separately and no capacity will be lost. There will be one drive for each disc inserted.
He JBOD mode for its part, it allows the hard disks to be “joined” to form a single unit, there is no data duplication but the system converts the two hard disk units into one, adding the maximum capacities of both hard disks. In this way, if we insert one, two or more discs, we will see everything as a single unit.
He RAID 0 mode or also known as Data Striping, this mode allows data to be distributed evenly between two or more disks. There is no parity information so we will not have redundancy. In this mode, if we have a 500GB hard drive and a 1TB hard drive, the maximum RAID0 capacity will be 1TB (500GB of one and 500GB of the other). This mode is recommended to achieve higher read and write speed rates since both hard drives work together. With this mode we can configure 2 hard drives.
He RAID 1 mode Also known as Mirroring, it allows data to be duplicated on both hard drives, so that if a hard drive has a mechanical failure, it can be replaced by another and the information can be restored without data loss. This mode is recommended to protect your most important data. With this mode we can configure 2 hard drives.
Depending on the number of hard drives inserted in the D-Link DNS-340L NAS server, we will have more or less RAID options. If we introduce one or two disks, the available options that we will have will be those that we have talked about previously, however if we introduce a total of 4 hard disks, we can configure the NAS in the following modes:
He RAID 5 modeIt is a distributed mode and with parity, it allows data to be distributed among several hard drives and also incorporates parity information, if a hard drive fails we can regenerate the information thanks to the information stored on the other drives, if two drives fail we will lose all the information.
The last mode available on this NAS is RAID 10 mode, this mode allows creating a RAID 0 out of two RAID 1s, in such a way that for each RAID 1 created a disk may fail and we can recover the information, if two disks of the same RAID 1 fail then we will lose all the information.
To configure different RAID levels in the D-Link DNS-340L we have two options, run the NAS installation wizard for Windows if it is a first installation, or do it through the NAS server’s own firmware. In case you have not created any RAID in the first configuration, we can go to the NAS administration, in «Administration / Disk Administration ». Once we are in this menu we click on «RAID Type Definition and Re-Format«.
This process will format the disks so we will lose all the information inside.
Once we click there, we must follow the configuration wizard provided by the D-Link firmware. It will first show us the hard drives inserted in the NAS with their capacity, then it will give us to choose what type of RAID we are going to select, in our case we are going to select RAID 1 for data duplication.
Once selected, we can choose what size we want to reserve for RAID 1 and what size we want for an additional space in JBOD format. In our case we select the full capacity of the smallest hard disk (in this case the size is the same in both), then it will give us the option to rebuild the RAID 1 automatically if a hard disk fails and we replace it . It is advisable to select this option to fully protect our data in the event of a disk failure. The following option allows us to encrypt the content of the discs, in case, in case of physical theft, they cannot read our data.
Once we have carried out these steps, we only need to format the volumes and after waiting a few minutes we will have our RAID created.
Once the process is finished we will have a summary of the changes and the new RAID system will be reflected in the disk management:
So far we have arrived with our manual on how to configure a RAID on the D-Link server. We recommend visit our D-Link manufacturer page where you will find more analysis of the manufacturer. You can also access the D-Link area where you will find configuration manuals for your equipment.