Power vs. Price.... SSD vs. Hybrid SSD

I recognize the difference between HDD and SSD. However, I'm a little lost on exactly what the difference is between SSD and Hybrid SSD drives.
Do hybrids spool up?
What is the power comparison?
Are hybrids shock resistant?

Which is more powerful in a Raid 0 array, 2x 500GB hybrid SSD
2x 750GB HDD 7,200 RPM
or a single 256GB SSD

 

Hybrids only have a small amount that are SSD (4GB in the drives I've seen). This means that the rest of the drive is like a traditional hard drive. It seems like a single SSD would win out.

 

If you have the money, just get a single 256GB SSD. Then if you need more space, use an external for extra storage (and backups which you should always do!). A hybrid is barely faster when compared overall to a traditional spinner. Don't waster your money.

My 4K Sequential read/write results from recent tests (which you will use some of the time):

2 x Western Digital Caviar Blue 320GB 7200RPM @ 64K alignment in Raid 0 using IMSM - 175MB/s read, 150MB/s write. (Sata II)

1 256GB Micron C400 (Crucial M4) w/ FW0009 @ 4K alignment running IRST - 500+ MB/s read, 275 MB/s write. (Sata III)

This was using ATTO default values. Both systems using same data/programs/OS version.

Also remember that a Raid 0 setup will double your chances of data failure, so either way, you will need two spinner HDD's in Raid 0 plus one HDD for backup, or 1 SSD plus 1 HDD for backup.

 

NoSlow5oh, just need to mention you said those are random 4k's, but they aren't, those are your sequentials.

For random 4k R/W, a mechanical HDD will be under 1MB/s (iirc, maybe 1-2 at most), versus 15-40 on an SSD (depending on the drive).

 

Lol, which SSDs have 40 4k?

Mr. Mysteirous

 

a lot of large capacity ssd has over 40Mbps 4k random RW. E.g. intel 320, crucial m4..etc

 

Ohhh large capacity...duh

Mr. Mysterious

 

Yea the larger capacity have faster writes, although there tends to be pretty similar read performances. Your own M4 128GB should be solidly in the 30s on reads...writes can definitely exceed 60, and even 70 sometimes.

 

My 80GB Intel 310 gets 59 4k writes, so it is not just large capacity drives.
http://forum.notebookreview.com/att...ite-speeds-have-reduced-half-03-09-11-cdm.png

 

But yes the larger the capacity, the better the speeds.

 

I have both and the hybrid is just a little faster than a 7200rpm and a ssd is alot faster which depends if your doing a sata3 or 2. Even at sata2 it's much faster.

You only get the hybrid if you need the 500gb of storage space.