Laptop 1TB HDD finally arrived


Fenix90

macrumors newbie
Original poster
Apr 8, 2010
18
0
I r idot

Sorry. I didn't know it's been out for some time. In any case. Would you think it's worth a look or just wait until the price and specs get better? It'd be a good storage drive for my current laptop.
 

Fenix90

macrumors newbie
Original poster
Apr 8, 2010
18
0
I'm kinda confused to why it would be a 5200RPM than 5400RPM. Did it get hot enough for WD to think it should be slowed to 5200RPM? I doesn't look like that big of a difference.
 

Takashi

macrumors regular
Oct 26, 2009
203
0
I'm kinda confused to why it would be a 5200RPM than 5400RPM. Did it get hot enough for WD to think it should be slowed to 5200RPM? I doesn't look like that big of a difference.
The extra weight from the additional disk platter might have caused the performance decrease. WD can add a bigger motor but then it will use up more battery power.

I would wait a bit before investing in one unless storage is your number 1 priority.
 

John Kotches

macrumors 6502
Jan 19, 2010
366
1
Troy, IL (STL Area)
Its slow especially on the Latency, but the read/write MB/s isn't bad at all. However, if you were to RAID them, they're as fast as a stock SSD in terms of Write/Read performance.
No it won't be. Latency will destroy that possibility. And striping them (RAID 0) means if you lose either drive you lose your data.
 

ayeying

macrumors 601
Dec 5, 2007
4,549
11
Yay Area, CA
No it won't be. Latency will destroy that possibility. And striping them (RAID 0) means if you lose either drive you lose your data.
I said in Read/Write performance, not Latency. No mechanical hard drives can reach the latency of an SSD.

And I know the risks of RAID-0. Thats why there's always a backup, regardless if you're using RAID-0 or not.
 

Hellhammer

Moderator emeritus
Dec 10, 2008
22,166
580
Finland
The drive was released early this year. Nothing exciting about it. If it was the 9.5mm model, then it's worth cheering.
It's been around for pretty long time but its availability has been very bad. Now it's available from almost all big vendors like NewEgg and OWC. And yes, all unibody MacBook (Pros) support 12.5mm drives
 

John Kotches

macrumors 6502
Jan 19, 2010
366
1
Troy, IL (STL Area)
I said in Read/Write performance, not Latency. No mechanical hard drives can reach the latency of an SSD.
And I said the latency will block that.

I am willing to bet that two striped 5200 RPM drives won't exceed the performance of a decent SSD. Striped 15K drives is what you'd need to have a chance of beating the SSD. And I doubt that would do it.

And we haven't talked about IOPs either.


And I know the risks of RAID-0. Thats why there's always a backup, regardless if you're using RAID-0 or not.
Never assume with backups ;)
 

ayeying

macrumors 601
Dec 5, 2007
4,549
11
Yay Area, CA
And I said the latency will block that.

I am willing to bet that two striped 5200 RPM drives won't exceed the performance of a decent SSD. Striped 15K drives is what you'd need to have a chance of beating the SSD. And I doubt that would do it.

And we haven't talked about IOPs either.
Latency in hard drives are an issue because the head has to move from one physical location to another. It has nothing to do with writing/reading. One of the reason hard drives is "slow" compared to a SSD is because of Latency.

Have you used the stock SSDs? The stock SSD barely got ~100-150mb/s on read or write performance. My current system can easily manage 100+ mb/s sustained even with both drives 1/2 filled. If I had a clean installed OS, I'm pretty sure I would've easily hit the max limit of SATA-I. A single 1TB 5200RPM drive can do 75MB/s+, times 2, you get a pretty big bandwidth increase.

Never assume with backups ;)
By that account, there's no need to even back up because back up isn't gonna protect you either.

I'm just saying, using RAID-0, your chances of having a hard drive failure goes up however keeping back ups are a necessity these days. A back up will save you in some situations but not all.