for all:
- SMR isn’t problem of these days. Real and confirmed concerning about such kind of technology has been known from late 2014 when Seagate created such technology for low cost HDD segment.
- there was main problem - lack of performance consistency
- Seagate Barracuda is entry level disk range and I will never use such disk for my valuable data in NAS. When Seagate "forgot" show this info about SMR it's a shame. But Barracuda segmentation is for "price first" buyer, then no one from such segment care about performance tests.
- as we can see WD with Red range crossed this line of "perfomance+endurance first" w/o any awareness (it is similar to cheaters action from diesel scandal)
- Seagate Exos 5E8 range (enterprise clas) has SMR described in official
data sheet from Seagate
and when you will read carefully, there is a statement -
Exos 5E8 hard drives are not intended for surveillance or NAS applications, and you may experience lower performance in these environments. ... Best for Low random-write workloads. .....
- do you remember for my
post from last year? Seems to be HAMR technology is just one way (real and in near time available) how to produce 3.5” big TBs disk to future. Patented by Seagate.
- yes, there is also technology called BPMR - Bit Patterned Magnetic Recording, but we will wait many years for such first HDD in e-shops.
Conclusion:
- SMR has been developed for low cost segment driven by one and only metric - cost per TB
- as we can see many of big cloud providers (Dropbox) moved their disk capacity to SMR - because the price!
- as was many times recommended from me here, use
pencil and paper before you purchase something, otherwise you will get troubles
----
@Shadow
re SMR and Seagate IronWolf range
1. IronWolf range - SMR is not mentioned in official
data sheet from Seagate, because they use CMR technology, what is OK for you
blocksandfiles.com
