RS3621xs+

Synology

RS3621xs+

4 positive 0 neutral 5 negative

Based on 9 Reddit mentions

What people are saying

Discover what users really think based on Reddit discussions.

Getting option paralysis for NAS upgrade solutions. Buy, build, or upgrade? Looking for some opinions.

Why not try ARC Loader? You'll have a custom-built case without the hassle of dealing with Unraid or Truenas. With ARC, you can use DSM, which saves you a lot of trouble. I should mention that name-brand cases are expensive and often have somewhat outdated hardware (like Synology), not to mention th

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TheZeth80 in r/HomeNAS

January 5, 2026 6:23 AM

3

Looking to get a Synology device.... what's recommended?

We are rolling an RS3621xs+ with 64GB of ram and 72TB of storage. You will want to get their ram and hdd's so you will have full support.

fieroloki in r/sysadmin

May 13, 2025 4:48 PM

4

Looking for Alternatives to Synology

I recently had this dilemma. Ended up buying three RS3621RPxs. Why? Because I know it works, teh warranties/support on the drives are good too Compared to QNAP with WD drives, it was £300 more for the Synologys

slugshead in r/sysadmin

May 6, 2025 10:22 PM

3

Let’s hear from you!

Im a rare case where i live in the XS+ line at work as NVRs and also have one in my homelab. Western Digital is our drive vendor and we use WD Golds in them. So ill be unaffected from this but to be honest i think its already happening. Our drives say unverified and says warning constantly. This is

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tbrown7552 in r/synology

April 17, 2025 5:14 PM

2

Was it a good buy? RS3621RPXS

A RS3621RPxs for $1,400 USD is a bargain. And I would buy it just because it's cheap and find a use for it. If I could get one here for $3,500 USD I'd also consider it a bargain. For me a DS1825+ is $1,760 AUD ($1,170 USD). But a RS3621RPxs is $6,700 AUD ($4,444 USD). Intel Xeon D-1531 compared to t

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DaveR007 in r/synology

December 16, 2025 7:57 PM

1

NAS prices?

I went through the same dilemma as you, right after buying a new and quite cheap RS3621RPXS. But as they say, all that glitters is not gold. The problems surfaced within days; the new update arrived and the fan noise increased. Although replacing the fan with Noctua fans is easy, it doesn't cool suf

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TheZeth80 in r/HomeNAS

February 16, 2026 9:57 PM

1

NAS Pick?

Its pretty obvious that the Synology is massively out of date using a 10+ year old processor and hardware that is inadequate for 2025. No 10GBe standard? PCIe Gen 3? You have got to be kidding me with this obsolete crap. Feature Synology RS3621xs+ QNAP TS-h1887XU-RP Performance Tier Mid-to-high ente

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Coupe368 in r/synology

July 29, 2025 2:39 PM

1

Nas went unreachable. Led indicators are okay. Initiate a restart with power button. It flashen blue for over 2 hours. What to do? Wait or force a shutdown?

It's a DS2413+.I ended up by pressing the powerbutton longer so it shuts down. this happens also in june. can't find any clues why this happen. But i'm looking for a replacement. but also unsure what to choose. I read a lot of thos drive compat, but in my ignorance i was thinking, i don't care if i

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arjanver in r/synology

August 7, 2025 11:23 AM

1

What role does a NAS play in your (homelab) Proxmox environment? Does it matter what OS the NAS uses? (Will Windows be fine?)

At work we have two Synology RS3621xs+ in a high availability configuration. Until recently we were using them to store only user data, but I have been testing using them to store the VM/LXC disks of our ProxMox cluster over NFS, and I have been pleasantly surprised with the performance. Our service

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pezezin in r/Proxmox

September 11, 2025 4:16 AM

1

Top alternatives in NAS Devices

#1
DXP4800 Plus

UGREEN

DXP4800 Plus

$656.99

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