NOTE: Technically, you only need to create one “allow” rule which is a combination of all of the ports that you’d like permitted. However, if you want to allow traffic to certain ports by IP subnet (for example), you should have one rule per service/application. TLDR: create one rule per application so that you can easily manage them. Hardware specifications: Synology DS1821+ vs DS1621+ Synology DS1821+ vs DS1621+: Hardware upgrades are (almost) a must

Tal for ydeevne opnås i Synology-laboratoriet med optimerede netværks- og konfigurationsindstillinger. Aktuel ydeevne kan variere i forskellige miljøer. Sammenligning foretaget med tidligere generationer af 8-bay DS1819+. Du kan finde flere oplysninger om testopsætningen på Synologys ydelsesside her. Data scrubbing inspects your volumes and modifies detected inconsistencies. In simple terms, this protects your NAS against bit-rot. There isn’t a specific schedule that’s mandatory, but it’s a good idea to run it at a minimum, bi-annually.The DS1821+ provides 8 drive bays with the option to expand to 18 using two DX517 expansion units 4. Powered by Synology DiskStation Manager (DSM), in addition to JBOD/RAID0/1/5/6/10, Synology Hybrid Raid (SHR) allows users to create arrays using odd-sized drives while still maximizing the storage potential of the array. This enables older drives to be serviceable, without requiring an upfront commitment to only installing drives of the same capacity.DSM also provides easy means of upgrading storage capacity after the device has been set up. Add in a new drive and expand your array effortlessly, without disruptions to services or requiring lengthy manual processes 5. RAID options can similarly be upgraded, from a lower-protection level to a higher one, such as from SHR-1, one drive redundancy, to SHR-2, two drive redundancy 6. Accelerated Performance - 177% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor By default, the recycle bin will retain files until you empty it. However, there’s an easy way to set up a schedule so that your NAS automatically deletes these old files after a certain period of time. That amount is enough for general usage, but a memory upgrade is a must if you want to get the most out of the server. Synology hardware upgrades: Here's my new Synology DS1821+ and the upgrade parts, including a 10Gbps PCIe add-on card, a 32GB DDR4 RAM kit, and two 1.92GB Seagate IronWolf NVMe SSDs. 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.

During the memory test, your Synology NAS will be rebooted. It will recover after another reboot if its memory is normal and passes the test. However, if the memory test fails to finish or shows that there is an error, the memory may be faulty. In this case, you are strongly recommended to return your Synology NAS for repair. Just in case you have installed a non-Synology memory module, please remove it and rerun the memory test. Though once again you should remember that Synology do not recommend using memory modules that are not from Synology themselves, so this test may not be indicative of the health of unofficial memory in your Synology NAS. Alternatively, you can perform as many actions and processes as possible (scans, copy/pastes, thumbnail generation, transcode a 4K file, RAID changes, synchronisation, etc) at once to see how the task manager and resource monitor behaves in the Synology DS1821+. It should spike each time and at a greater height as you do more and more and once it exceeds the memory you had previously installed, this is a good confirmation that the installation is working fine.cứng SSD M.2 NVMe thuộc dòng sản phẩm Synology SNV3400 có thể lắp đặt trên các khe cắm M.2 tích hợp để kích hoạt bộ nhớ đệm SSD hoặc tạo vùng lưu trữ SSD. Ổ đĩa được bán riêng. There are certainly exceptions to this (like when DSM 7 was first released) where you might not want to be first to update. However, as time goes on, you will notice that you connect to your NAS less frequently than you initially did, and this is where I believe automatic updates add value. We then had to make a second volume to use the rest of the pool space. WD Gold HDD 22TB Specifications Model Number The WD Gold 22TB drive is designed to lower TCO for organizations, as they allow for more capacity without having to increase physical footprint or the same capacity at a lower physical footprint. Not only that, the Golds are one of the best-performing 3.5″ HDDs we’ve seen in our lab. You shouldn’t open ports to applications you aren’t actively using. For example, you might have SSH enabled, but it’s a good idea to turn off SSH when you’re done and to remove the “allow” firewall rule.