Synology DX517 5 Bay Desktop Network Attached Storage Expansion Enclosure, Black

Product Information

Extend the standard 3-year hardware warranty of your DS1621+ with 2 more years of Synology-certified support and premium services that help you recover faster in the event of disaster. The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers. Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. Managed from DiskStation Manager on the host NAS, the additional bays in the DX517 are immediately ready to be used once connected. On-the-fly volume expansion ensures that storage and services on the host are not interrupted during volume expansion. Synology SNV3400 series M.2 NVMe SSD drives can be installed through the built-in M.2 slots to enable SSD caching or create SSD storage pools. Drives are sold separately.

I have not noticed any speed or performance differences when loading files into the expansion unit or when streaming video from the expansion unit. Need Help? Been quoted elsewhere? Take advantage of our Price Promise. Call our Server Team on 0871 984 4418or... Performance figures are obtained from testing conducted with the device fully populated with drives under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads. SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, Fibre Channel, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).

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Performance figures obtained through internal testing by Synology. Actual performance may vary depending on the testing environment, usage, and configuration. See performance charts for more information. Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications. Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability. I have a DS918+ with 4x8TB WD White drives in a SHR1 array that is running out of space. I’m not looking for opinions about the efficacy of SHR1 vs SHR2 vs the various RAID arrays. My question is specific to Plex as I use my NAS primarily as a Plex media storage device.

applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above) Extend the standard 3-year hardware warranty of your DS1821+ with 2 more years of Synology-certified support and premium services that help you recover faster in the event of disaster. Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM. Please upgrade to DSM 6.2.1-23824-5 or later version before using it with 15 and 16 series models (excluding DS1515, DS716+, and DS716+II).

The performance you need

In two year's time, the format distribution of my video collection had changed to 44% DVDs, 51% Blu-rays, and 5% 4K Blu-rays. This redistribution was due largely to replacing DVD titles with their Blu-ray versions and replacing Blu-ray titles with their 4K Blu-ray versions, rather than acquisitions of new releases. Over the past two years, many of my favorite DVD titles have been re-released in Blu-ray format with high quality remastering and some of my favorite Blu-ray titles have been re-released in 4K format. Anyway, i want to strictly separate the hdd's / storage from the expansion unit from the storage of the NAS to prevent data loss caused by NAS or DX failure. For example if the NAS or DX Powersupply fails or one of them just stops working, the RAID will be damaged, because suddenly several disks disappear at the same time. This is why i want to separate them. Unfortunately, it is not clear to me how to set it up the right way. I am not sure, if i have to create a separate storage pool with its own volume(s) for the new disks in the expansion unit, or if it will be enought to simply add the disks to the existing storage pool and create a new volume within this storage pool? I think the second option (adding drives to existing pool and creating a new volume in there) will distribute the data from volume 1 and 2 which are in the same storage pool, across all HDD's (These in the NAS and DX517) and will not separate them physically on the Harddrives, right?