2 x OCZ Vertex 4 256GB in Raid 0

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LouPoir

Lifer
Mar 17, 2000
11,201
126
106
Similar setup - different results:

2x256 Vertex4 Raid
Asus Sabertooth X79 m/b
I7-3930k @ 4.4

ATTO best results are:

Write 774
Read 560 to 611

Not very happy with these results - like your a lots better.

I am a big OCZ fanboy but I am let down with these 2 drives
 
Coup27

Coup27

Platinum Member
Jul 17, 2010
2,140
3
81
Blades said:
RAID 1 is easier to have trim implemented because both drives have the same data. RAID 0, not so much... The FS can have files that are deleted that are not exactly deleted until the space on the drive that the aforementioned deleted files occupy is overwritten by newer files... SSDs don't understand this.. if a nand cell has data, it has data.. until the firmware tells it that it doesn't have data.. Meaning... there is no such thing as an overwrite command in SSDland.. There is only write/read/delete. I'm pretty sure thats the way it goes.. but the TRIM command is from the OS to the controller.. telling it to tell the firmware to flag the nand cells as 0.. I'm sure I'm missing pieces of how this works.. But its like realtime freespace cleaning.. marking files deleted as truly unallocated space (0)..
Click to expand...
I'm not questioning that, I'm questioning what would be the point to release a driver which enabled TRIM under RAID1 but no other RAID? How many people run 2 SSDs in RAID1? The main people who want this driver are the people in this thread running RAID0 or people with money to burn with multiple SSDs in RAID5 or something.
 
N

nanaki333

Diamond Member
Sep 14, 2002
3,772
13
81
LouPoir said:
Similar setup - different results:

2x256 Vertex4 Raid
Asus Sabertooth X79 m/b
I7-3930k @ 4.4

ATTO best results are:

Write 774
Read 560 to 611

Not very happy with these results - like your a lots better.

I am a big OCZ fanboy but I am let down with these 2 drives
Click to expand...

man.. i have a sabertooth too and SSDs in raid0 were not giving much better performance over a single one. i also have issues with my pc hardlocking with pcie 3.0 cards (even in 2.0 mode). even with my 3960x at stock.
 
F

fastman

Golden Member
Oct 9, 1999
1,521
4
81
nanaki333 said:
man.. i have a sabertooth too and SSDs in raid0 were not giving much better performance over a single one. i also have issues with my pc hardlocking with pcie 3.0 cards (even in 2.0 mode). even with my 3960x at stock.
Click to expand...

What vid card are u running?
 
L

LouPoir

Lifer
Mar 17, 2000
11,201
126
106
nanaki333 said:
man.. i have a sabertooth too and SSDs in raid0 were not giving much better performance over a single one. i also have issues with my pc hardlocking with pcie 3.0 cards (even in 2.0 mode). even with my 3960x at stock.
Click to expand...

Never thought it might be the X79 board - these 2 Vertex4 drives replaced 2 Vertex3 drives. Let me try those in raid. I know these performed super in my last motherboard.

I also have a 3.0 video card in the first slot ( HD7970 ) with no problems.
 
L

LouPoir

Lifer
Mar 17, 2000
11,201
126
106
LouPoir said:
Similar setup - different results:

2x256 Vertex4 Raid
Asus Sabertooth X79 m/b
I7-3930k @ 4.4

ATTO best results are:

Write 774
Read 560 to 611

Not very happy with these results - like your a lots better.

I am a big OCZ fanboy but I am let down with these 2 drives
Click to expand...


So I put the 2x128Vertex3 back in with no changes. ATTo best results jump to:

Write 994 ( vs 774 on Vertex4 )
Read 973 ( vs 560 to 611 on Vertex 4 )

Wow - what a difference.
 
N

nanaki333

Diamond Member
Sep 14, 2002
3,772
13
81
LouPoir said:
So I put the 2x128Vertex3 back in with no changes. ATTo best results jump to:

Write 994 ( vs 774 on Vertex4 )
Read 973 ( vs 560 to 611 on Vertex 4 )

Wow - what a difference.
Click to expand...

wow... did you get the most recent BIOS update? these x79 boards are freaking screwy.


and to answer the other question, i'm just running a single radeon 7970 now. i get the hard locks a bit less with 1 vs 2. my dual 6970s worked fine in here, but i already gave those to a friend. :(
 
R

reynoldsjrmy

Member
Nov 2, 2011
61
0
0
LouPoir said:
So I put the 2x128Vertex3 back in with no changes. ATTo best results jump to:

Write 994 ( vs 774 on Vertex4 )
Read 973 ( vs 560 to 611 on Vertex 4 )

Wow - what a difference.
Click to expand...

Hi LouPoir,

It is worth remembering that Atto is a 'best case' scenario for a Vertex 3 as it uses massively compressible 'all zeroes' test data.

Running an AS SSD, which uses incompressible random data, is a much more realistic test (or Anvil, where one can control the compssibility of the test data).

There is new firmware coming for the V4, which will significantly improve the speed of sequential reads and writes.

Regds, JR
 
B

BarryBGB

Junior Member
May 10, 2012
1
0
0
LouPoir said:
So I put the 2x128Vertex3 back in with no changes. ATTo best results jump to:

Write 994 ( vs 774 on Vertex4 )
Read 973 ( vs 560 to 611 on Vertex 4 )

Wow - what a difference.
Click to expand...

I have a Vertex 3 and Sabertooth X79. I wanted to go with a Raid 0 so thought I would buy 2 Vertex 4.
They will be here tomorrow but now I think I made a mistake. Should have gotten another Vertex 3.

Oh well, I still may get another Vertex 3 and do the Raid with those.

Just a single Vertex 3 I get results like this.

Write 560
Read 520

I think I will use SuperSpeed Ramdisk Plus and use some of my 32G of ram to get about 7gig read and write.
 
Rubycon

Rubycon

Madame President
Aug 10, 2005
17,768
485
126
1) Don't use ATTO for SSD benching. It's good to see what your interface bandwidth is and can spot potential bottlenecks, etc.

2) The 1.4FW is a release candidate! It's bug ridden and you need to be careful especially if you have several drives striped. Don't put anything important on said arrays! Speed is up but it's got the stability of a dining room table with three legs during a whole gale. ;)
 
G

groberts101

Golden Member
Mar 17, 2011
1,390
0
0
Rubycon said:
The 1.4FW is a release candidate! It's bug ridden and you need to be careful especially if you have several drives striped. Don't put anything important on said arrays! Speed is up but it's got the stability of a dining room table with three legs during a whole gale.
Click to expand...

all the girls I hang out with have no issues with 1.4 on these drives. Things will only get better as time goes on.
 
R

reynoldsjrmy

Member
Nov 2, 2011
61
0
0
Hi,

Here's an update following the release of the latest 1.4 firmware.

First 2 x 256GB Vertex 4's in Raid 0 -
asssdraid0.png


Remarkably, I see no performance drop off with V4's in Raid 0 even if I pummel my array with massive amounts of data - it is as if even in R0 the drives benefit from some form of pseudo trim functionality.

Second, a single V4 256GB -


asssdsingle.png


Regds, JR
 
Last edited:
Rubycon

Rubycon

Madame President
Aug 10, 2005
17,768
485
126
What is "massive amounts of data"?
If you leave the durability test running in Anvil tools for a few days filling them up over and over again that will stress it a bit. ;)
 
R

reynoldsjrmy

Member
Nov 2, 2011
61
0
0
Hi Rubycon,

I have run Anvil's Endurance test through 10 cycles on several occasions. For a few days borders on the insane i.m.o. As Albert said testing the same thing over and over again and expecting different results - is a sign of insanity.

Kind regards, JR
 
Rubycon

Rubycon

Madame President
Aug 10, 2005
17,768
485
126
Funny you mention that very quote because in PC benchmarking you always get different results when doing the same thing. (of course how do you really know it's the SAME thing with all the various background processes?)

Anyway, with a faster array it will fill up faster. My concern is seeing SDS with these drives. I'm not allowed to purchase any OCZ product so I will never have them in my hands. I don't see this changing any time soon.
 
M

Masterbobo

Junior Member
Jul 25, 2012
6
0
0
Those are my results. I just finished my raid0 of the 2 - 256gb Vertex 4s on the X79-UD3 board and with a 3930k @ 3400mhz and 16gb if Dominator GT @2133mhz. Im happy with the #s lol
 
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