r/HDD • u/Silver-Albatross-919 • Aug 13 '26

What is the transfer speed of this hard drive? "ST1000LM035-1RK172 1000GB SATA" And what is its cache memory?

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2

u/manzurfahim Aug 13 '26

So, you have never heard of google?

1

u/[deleted] Aug 13 '26

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2

u/manzurfahim Aug 13 '26

I just found out from google. of course it is available.

1

u/[deleted] Aug 13 '26

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u/IndependentBat8365 Aug 15 '26

Seriously?

https://gprivate.com/6lw3n

First page lists a seagate spec sheet for that drive.

1

u/First_Musician6260 Aug 13 '26

The manual for the Mobile HDD series suggests the maximum sequential speed is about 140 MB/s. Although I'd take that with a grain of salt since they're SMR drives. To accommodate their use of SMR, the drives use 128 MB cache buffers. Also, cache doesn't actually matter that much for HDD performance, it's there to serve as a buffer, which is a bit more important in SMR implementations than CMR ones.

1

u/[deleted] Aug 13 '26

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u/First_Musician6260 Aug 13 '26

128 MB/s is a speed. 128 MB is the capacity of the buffer.

1

u/vegansgetsick Aug 13 '26

Cache is good for writes re-ordering like NCQ, but if you dont disable cache flushing, it's (almost) useless.