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Forum Discussion
New HDDs (as of 2016) have 2 instead of 3 screwholes on left and right side, problem with disk trays
We just upgraded our RN 104 with 2 new 8 TB disks: Seagate Archive HDD v2 8TB, SATA 6Gb/s (ST8000AS0002) They are working fine, but I was having problems fixing them to the disk tray. New HDDs se...
Archive HDDs are not recommended for use in NAS units.
I did some research before making the choice. The disadvantages of Archive HDDs are: 1. compared with other recent HDDs, they have lower writing speed because they have to read data from nearby cylinders before writing (but compared to older HDDs they are not "slow" at all), 2. they have a transfer limit in "terabytes per year" which can void warranty if exceeded.
Both disadvantages are not important in our scenario. Our NAS is an archive, where lots of data is stored and rarely accessed.
AGSowjet wrote:
I did some research before making the choice. The disadvantages of Archive HDDs are: 1. compared with other recent HDDs, they have lower writing speed because they have to read data from nearby cylinders before writing (but compared to older HDDs they are not "slow" at all),
Writing to track 1000 destroys the content on track 1001. So you not only need to read track 1001, you then need to write it. That destroys track 1002. So the drive needs to "ripple" the writes until it reaches an unused track (or the end of the drive). The drive takes care of this automatically.
But sustained write speed is therefore extremely variable and geneerally much slower than older hard drives. There are some other implications - the drives will ignore spindown if they are in the middle of "rippling" the writes.
Also there have been some linus driver issues with these drives. I'm not sure if they are all resolved yet.
For what it's worth, my Seagate ST6000VN0021 (IronWolf NAS drive) also only has 2 holes per side, not 3,
Just unwrapped the NAS 214 and 2 Seagates Ironwolf 6TB - compatible per list. Issue inserting hard disks. Reason I see now is that Seagate has 2 holes in meantime (1 top, one down)
Plastic in slider has 2 ( 1 top one middle)
This makes it impossible to insert it easily. What is NETGEARS recommendation what I should do?
Thanks.
Based on https://kb.netgear.com/20641/ReadyNAS-Hard-Disk-Compatibility-List, NETGEAR's recommendation is: "To mount the disk to the desktop NAS disk tray, remove the plastic mounting bracket from the disk tray and use two screws to secure the disk to the disk tray."
As I said, HDD manufacturers have decided to remove one of the screwholes and so they did, no matter what. :D
I wonder how many PC professionals will have to find a creative solution when replacing HDDs with new HDDs in many different PC cases, NAS cases etc.
Anyway, I preferred my solution to modify the plastic bracket instead of removing it, as described above. The HDDs are very firm in place.
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