The higher capacity the hard drive, the lower the seek times, latency, etc., I believe. I'm going for a 1TB (I'd prefer a 500GB) and I'll use externals for anything else I need.I am planing to buy a new iMac 27, I am not sure if I should get 1TB or 2TB harddrive. Which one is better? In terms speed? Will the 2TB be slower than the 1Tb?
For me 2TB IS WAY too expensive. And 1TB seems like a good amount. Plus there is that thunderbolt port looking at you... You know you will have to feed it some external drives... so why get enough internal storage when you KNOW you'll buy external soon enough.
I don't really trust internal hard drives - too prone to failure.
You know an external drive is the same drive just in an external case.
Slow as snot 1 TB NAS is about $100.
You know an external drive is the same drive just in an external case.
Do you think it would be better to upgrade the internal drive over purchasing an external NAS. Is a NAS that much slower?
[doublepost=1491746390][/doublepost]2TB drive IS faster than 1TB drive!
Here is why the 2TB drive will be faster for you.
If either drive will suit your capacity needs, then that means you plan to store less than 1TB.
If you store 1TB on a 2TB drive, the average distance the read/write head has to move will be substantially less, approximately halved. That means seek times are reduced. Not halved, but significantly reduced. That means the drive can perform more I/Os in the same period of time, or take less time to perform a given I/O load.
Further, if one of the ways in which the 2TB drive squeezes more data in is by increasing the density of bytes around the tracks, there is a second speed benefit. The data transfer rate between the read/write head and the drive's buffer is higher.
Trust me, I have worked in the storage industry for over 40 years, and I know what I'm talking about.
2TB drive IS faster than 1TB drive!
Here is why the 2TB drive will be faster for you.
If either drive will suit your capacity needs, then that means you plan to store less than 1TB.
If you store 1TB on a 2TB drive, the average distance the read/write head has to move will be substantially less, approximately halved. That means seek times are reduced. Not halved, but significantly reduced. That means the drive can perform more I/Os in the same period of time, or take less time to perform a given I/O load.
Further, if one of the ways in which the 2TB drive squeezes more data in is by increasing the density of bytes around the tracks, there is a second speed benefit. The data transfer rate between the read/write head and the drive's buffer is higher.
Trust me, I have worked in the storage industry for over 40 years, and I know what I'm talking about.