Windows 7 internal transfear speeds.

[Xiaz]

Hey all

I have a problem i think i am getting too slow transfear speeds, my drives are encrypted execpt my win7 partation and my Raid0 I am only getting about 20 Mb/s when i transfear from my raid0 too the wd red drive´s, i dont think that is normal imo i think i should atleast get around 40-80 Mb/s its all internal drives and sata 6 i have updated my controller too latest drivers.

I have also 3 x 2 TB samsung drives and when i transfear from them too the reds its same problem is the same. I dont know what is wrong, i really dont think it has something too do with the encryption.

I have the following drives setup on my LSI 9240-8i Controller
5 X 3 TB wd reds JBOD
2 X 2 TB wd blacks RAID0

I have also some drives on my MOBO
3 X 2 TB samsung on MB
1 X 830 SSD

The compleate setup:
Asus P5Q3
Intel Q9550 3.4 ghz
8 GB Corsair DDR3 1600 mhz
Nivida GTX 260
SAMSUNG SSD 830 128 GB
LSI 9240-i Raid controller

 

[staticlag]

What encryption are you using?

 

[Liger88]

i really dont think it has something too do with the encryption.

Are you sure about that? Encryption of any sorts, especially Full Disk Encryption, kicks the crap out of your hard drives performance and by itself is a performance hit on your system. Since they are JBOD you're probably only seeing the transfer speeds of one drive when you're transferring data to it. I would consider 20MBps decent given the setup of the disks you're transferring the data to, being WD Red drives, and using full disk encryption.


What encryption algorithm might also explain some details. I think 3DES has a pretty decent sized performance hit compared to AES, but th Q9550 isn't optimized for AES anyways so it would probably matter less.

 

[Xiaz]

Yeh i know the q9550 is not optimized for it in anyway, i use the AES-Twofish-Serpent On most of my drives but there is some there only has AES encryption. But maby its normal for that kind of encryption i just thougt i should get better speeds.

Tbh i did some benchmark on my WD black before on after the RAID-0 was created. And i would like someone too take a look of if this is normal:

SINGE WD 2 TB BLACK

CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 148.734 MB/s
Sequential Write : 139.605 MB/s
Random Read 512KB : 58.831 MB/s
Random Write 512KB : 97.656 MB/s
Random Read 4KB (QD=1) : 0.734 MB/s [ 179.2 IOPS]
Random Write 4KB (QD=1) : 1.599 MB/s [ 390.4 IOPS]
Random Read 4KB (QD=32) : 1.862 MB/s [ 454.7 IOPS]
Random Write 4KB (QD=32) : 1.502 MB/s [ 366.8 IOPS]

Test : 500 MB [E: 0.0% (0.1/1862.9 GB)] (x5)
Date : 2013/02/28 10:15:37
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)



RAID-0 2 x 2 TB WD BLACKS

-----------------------------------------------------------------------
CrystalDiskMark 3.0.2 x64 (C) 2007-2012 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 286.222 MB/s
Sequential Write : 86.409 MB/s
Random Read 512KB : 58.532 MB/s
Random Write 512KB : 51.485 MB/s
Random Read 4KB (QD=1) : 0.767 MB/s [ 187.3 IOPS]
Random Write 4KB (QD=1) : 0.692 MB/s [ 168.9 IOPS]
Random Read 4KB (QD=32) : 3.465 MB/s [ 846.1 IOPS]
Random Write 4KB (QD=32) : 2.472 MB/s [ 603.5 IOPS]

Test : 1000 MB [E: 0.0% (0.2/3723.3 GB)] (x5)
Date : 2013/03/01 6:05:51
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)


The write speed is way slower on the raid 0 setup

 

[drescherjm]

What are you transferring between drives? Thousands of small files?

 

[staticlag]

Yup, its the encryption. AES-Twofish-Serpent is tough on your processor.

 

[staticlag]

An easier way to get better data security, while being easier on your processor is to use symbols in your passwords that are not on a normal keyboard.

For instance ~!@#$%^&*()`,./;'[]\<>?:"{}| are less than ideal because they are easy to type.

Whereas if you use difficult characters such as ¶¬«§¦¹¾»µº©®±· It adds quite a bit of complexity, and most brute force programs dont even plug all the special chars and alternate languages in by default b/c it adds a stupid amount of time to crack even short passwords.

 

[Xiaz]

Its difrent all files are betewen 20 mb too 1 gig when i tested my transfear speed i used a 10 giga file too test and the speed goes stable at 20 mb/s hopefully i will get an updated system soon there support the AES encryption.