[X]Assistant

[blowlight]

Hello!
Actuallysuch a toy.

Technical description of the authors

Description: ISCSI / NAS unified storage system - high data transfer speed and ease of use D-Link ShareCenter Duo Network Disk Drive (DNS-346) with 4 drive bays combines NAS and iSCSi technologies. This combined system allows you to create separate NAS and iSCSi volumes. The iSCSi interface provides high speed data transfer; in addition, the device supports NAS functions, for example, providing access via FTP protocol. If the device supports only iSCSi technology, NAS functions are not available, since iSCSi does not work with files, but with data blocks. ShareCenter Duo disk drive with 4 drive bays for efficient use of iSCSi / NAS technology. Protection, Performance, and Reliability The DNS-346 has 5 different hard drive modes (Standard, JBOD, RAID 0, RAID 1, and RAID 5) that allow users to choose the configuration they need. In Standard mode, two separate hard drives are used. JBOD mode combines both drives into one for maximum capacity. RAID 0 mode provides high performance by sharing write and read between two hard drives. When using RAID 1 mode, the contents of one hard drive are duplicated to another, which ensures maximum reliability. If one of the hard drives fails, the second continues to function fully until the failed drive is replaced. Then the new hard drive is duplicated again, which allows the DNS-346 to return to full protection. When using RAID 5 mode, data is distributed on three or more disks, which ensures the efficiency and reliability of data storage.

There are plenty of people interested in it on the Internet, especially those who are led by its cheapness (relative) in the market of budget network storages.
Compatibility List:DNS-346_HDD_compatibility_list_20110308.pdf(79.77 KB)


Now the problem itself:
1. the fact that it hangs when creating a raid does not raise questions at all - it just hangs. And with 4HDD, and with 3, and with standalone, and whatever. But it's not that.
2. It works with screws not from the list of compatible ones, and it is quite tolerable. But:

in the design without the 3rd screw was bought (not by me, long before) in the store. Why is it 1 + 2 + 4 (also surprised). Added by the JBOD extension (after copying the archive) the 3rd HDD is not from the list of compatible terabytes (the 2nd and 4th screws are also not from the compatible). Nevertheless, the 1st raid worked, after adding the HDD to the array, it ended.
Buried.
Buried everything, reassembled, set the 3rd screw as standalone (there is no raid on it at all).
Now it is Volume_2 (I do not care, annual 1C archives can be stored on 1 screw per terabyte in size and no longer need to be). I don’t need any speed from it either.
Another thing is strange: the NAS writes 1TB of disk space, while writing 1TB of volume when marking it up, but on SMB: \ volume_2 the disk capacity is 14mb, the size of NASA's write buffer.

It is clear that I will rebuild it tomorrow (you need to get physical access to the device and turn the screws back in the correct order). Terabytnik poke in the raid and did not think. But nevertheless, why, seeing his characteristics in the hardware side, he does not want to include it in arrays with a separate disk?

p.s. The firmware also did not help, the latest version.