Power-Saving (9W~16W). Synology DiskStation DS411slim is designed to provide users with a compact yet feature laden solution for easy file sharing and backup. Snap-in 2.5-Inch hard drives design brings low power consumption, quiet operation, reliability and easy disk replacement in a compact size. The operating system, Synology DiskStation Manager 3.0, delivers rich features for multimedia enjoyments, Internet sharing, worry-free data protection and energy-saving options. Why pay more on Synology DiskStation 4-Bay (Diskless) Network Attached Storage DS411slim (Black) Order now. It's easy and simple.
Many customers was gave reviews and ratings to Synology DiskStation 4-Bay (Diskless) Network Attached Storage DS411slim (Black). If you want to read those details to make your decision on Synology DiskStation 4-Bay (Diskless) Network Attached Storage DS411slim (Black). Click to see all customers reviews & ratings
Reviews By Wonderboy : Date April 3, 2011
After ogling this for weeks I cracked down and pulled the trigger. It arrived a couple of days ago. So far I have been running the following (in parallel):
* migration of my backups and media library (from Readynas NV+), about 460 GB
* watched a movie
* played music on the Squeezebox Touch
* a remote backup of another Synology Diskstation over the Internet, 45GB
* hourly time machine backups (continuing on the sparsebundle from the NV+
* download of 4GB BitTorrent.
Even with the disks that busy, the fan sometimes turns completely off. The CPU temperature is consistently at 64 degrees Celsius and the 2 disks are at 42 degrees. My take on the temperature discussion is that these are the temperatures that both hard drives and CPU are designed for and running at these temperatures allows for a super quiet NAS.
This has less than half of the footprint and less than a quarter of the volume of the NV+. It looks quite futuristic, too. Works perfectly with currently 2 Western Digital 1 TB Scorpio Blue SATA 5200 RPM 8 MB Cache Bulk/OEM Notebook Hard Drive WD10TPVT. Much faster response than the NV+ when e.g.
Reviews By C. ROMER : Date May 21, 2011
"...the fan does not spin while the unit hibernates and the CPU, which does NOT throttle down, sits scant millimeters away from drive four."
My initial testing of this unit was very favorable. Read speeds over 90MB/s, using basic 5400 RPM drives, on AFP with a 2011 MacBook Pro through an HP ProCurve 1GB switch. Writes speeds, using RAID 5, drop to half of this, which is still acceptable for a typical environment (i.e. home or small office share).
The size has to be seen first hand to appreciate how compact the unit is. The styling is nice, and the management software Synology's DiskStation Manager is pleasant to look at as well as easy to use (despite some options being scattered about).
However, PC transfer speeds (W7 on i7 with SSD over HP ProCurve 1GB, using FastCopy, and optimized network settings) seem to be much slower. I had trouble topping 50MB/s, while an i5 MacBook Pro can manage 70-90 MB/s on the same setup. Also, the CPU is banging away at 80% during single writes. I have doubts this would scale well.
Still, it's the idling unit temperatures that have been causing users issues (check Synology forums). Synology replies with temperature specs that are incredible. "76C is normal because 105C is the max, and the unit shuts down at 95C" (paraphrasing). In other words 167F is ok, because Synology doesn't consider it an issue until 203F!
To be clear, this is when the unit is Hibernating. Once everything is up and running, the unit cools down considerably. This is so even when all four drives are pushed to the max. The reason is the fan does not spin while the unit hibernates and the CPU, which does NOT throttle down, sits scant millimeters away from drive four. Synology considers the act of slowly baking your drives to be acceptable in their design.
If you do buy it, consider using no more than three drives. Also, check into the fan speed hacks, but do so with this warning. This is a direct quote from support:
"There are users on the forum who have submitted ways to edit the fan tables, but this voids our offer of support and you will need to proceed at your own discretion.
Reviews By B. R. Whitty : Date June 14, 2011
I'm going to keep it brief, but I am an owner of the previous iteration of this device, the DS409slim, having purchased it shortly after it was released. The DS411slim has a slightly beefier processor and maybe more RAM, but it's essentially the same device with the same problem that plagued the DS409slim --- its drive slots are not wide enough to accommodate the RAID-rated enterprise-class 2.5" drives you should be using with this thing. Most (if not all) laptop HDDs have features that make them completely unsuitable for running in a RAID configuration, especially with Linux, with their firmware set to factory settings. You will learn this the hard way as I did (please see my DS409slim review for the full story).
My advice to current owners of the DS411slim is to keep a number of cold spares on hand, and pro-actively monitor your drives' SMART info carefully (especially load cycle count). I had two drives fail on me concurrently in under year. Another owner has reported the same in a review at another egg-based online retailer.
I love Synology products (the DSM is great), just not this one particularly. Unless you feel a strong need to be the paranoid sysadmin of your own ticking time-bomb NAS, maybe avoid this one and go for one you can put proper enterprise grade RAID drives in (and sleep well at night).
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