WD to launch 2TB drives, lose data

[Mercutio]

Why not 256MB? I'd guess the real-world performance would go up considerably.

I doubt that the drive's mechanics can deliver data fast enough for that to be worthwhile.

 

[timwhit]

I doubt that the drive's mechanics can deliver data fast enough for that to be worthwhile.

You could use it as a write buffer.

 

[Mercutio]

You could use it as a write buffer.

Yes, but given the disparity between the speed of the drive and the rest of the PC, it might not be a performance increase to do so. Everything fundamentally boils down to waiting on the drive to spin and seek.

Modern OSes already do lazy writes to the hard disk.

 

[ddrueding]

Just strap on an X25-E and do massive amounts of read-ahead.

 

[LOST6200]

Utuh Nooo!

Never the Mind.

 

[LunarMist]

WTF?

 

[Handruin]

My e-mail notification shows he wrote something different than the current message you see. He must have edited his response for some reason.

 

[LunarMist]

Just strap on an X25-E and do massive amounts of read-ahead.

How does a strap-on hard drive work?

 

[LunarMist]

You could use it as a write buffer.

This makes me wonder if cache buffer would help an SSD. Is there none in the X25-E? There would be enough space if there were 3.5" drives rather than 2.5" drives.

 

[Stereodude]

The OCZ Vertex SSD's have a 64MB cache.

 

[ddrueding]

There is a buffer and a battery on the Intel SSDs, but the cheaper ones have nothing, or 64k at best.

 

[LunarMist]

How much cache and what battery? Or do you mean there is a cap just sufficient to allow writing the buffer contents?

 

[ddrueding]

How much cache and what battery? Or do you mean there is a cap just sufficient to allow writing the buffer contents?

IIRC, there was 256MB of buffer and just enough battery to write it all.

 

[LunarMist]

What is the source of your information? I found nothing in the data sheet.

 

[ddrueding]

I believe it was that massive anatomy of an SSD article that was in the SSD thread a while back.

 

[LunarMist]

I'm skeptical, since a 256MB buffer would exhibit different write speeds at different file lengths. I'm not seeing that in ATTO or other write tests.

 

[ddrueding]

Well, I wouldn't trust my memory...too much LDS in the seventies...

 

[Stereodude]

Says the guy who was born in 1980.

 

[Mercutio]

Well, I wouldn't trust my memory...too much LDS in the seventies...

What did the Mormons do to you? Where did they touch you? Was it a bad touch? Did they make you wear their magic underwear?

 

[ddrueding]

 

[P5-133XL]

What did the Mormons do to you? Where did they touch you? Was it a bad touch? Did they make you wear their magic underwear?

You made me laugh. :bow: I bow to the master...

 

[LunarMist]

All Mormons don't wear that style underwear, at least not in daily life. Don't ask how I know.

 

[udaman]

2TB Caviar Black

link funny translation

'pocket tissues' (Merc?)

 

[ddrueding]

Funny that, I just ordered 4 2TB drives 5 minutes ago.

 

[LunarMist]

Is this about the WD 7200 RPM 2TB drive? I'll probably replace a couple of 1TB drives with them in Q3, so there will be >18.8 TB on the main system. Then maybe 6 more 2TB for 1TB swaps will be feasible later on.

 

[ddrueding]

I'm swapping out 16 750GB drives in RAID-5 with hotspare for 10 2TB drives in RAID-10. It is all backed up elsewhere anyway, so the extra redundancy isn't worth the poor write performance.