Showing posts with label raid. Show all posts
Showing posts with label raid. Show all posts

5/3/13

USB3.0 vs USB.2.0

[Updated Aug. 26 2013]

I had bought a new Seagate 2TB USB3.0 disk and gave it a spin. Here's some results that I wrote at the time; and some updates.

This was done on the Gigabyte FX990-UD7 mainboard which has an Eltron USB3.0 controller and I have it set up with two 250GB 3Gbit SATA2 disks on the Marvell RAID controller on the board, and an Intel 80 GB SSD disk.

USB2.0 is mostly limited to around 20-25MB second, depending on your controller. Remember, if you want network speeds over 10MB/sec you will have want to upgrade to a Gigabit home network. Then you can achieve speeds around 100 MB/sec.

So, it would be pretty clear that the days of 100 MBit networks are over. To accommodate these now ubiqous technologies as RAID, SSD and USB3, I expect gigabit switches to sell good the coming year.

Update:

Added one Kingston 120 GB SSD SATA3.0 drive.
From the USB3.0 to the new SATA3.0, I achieved around 310 MB per second accoring to the Resource Monitor, but the file dialog claimed substantially less.

One of the reasons I had to get the new SSD was ofcourse that the 3 year old 80 GB Intel drive was full, as it is the main system drive, so I have had no SSD to actually put stuff I use. The first thing I did was to move everything Java-related onto the new disk: JRE, JDK, Eclipse and the Android SDK. I noticed an immidiate 2x speedup, and before this, the software was located on the RAID0 drive in this test'

Also 'added' was a 4 GB ' AMD Radeon RAM disk'. This disk is used for Chrome and Windows temporary files. The disk is loaded very early in the boot sequence, and can probably host more interesting things.

Using a single test file of ~4 GB, except for when testing the 4 GB RAM disk, I used a 2.3 GB file.
These values are the observed max values under the Windows transfer dialog.

RAID0 2x3Gbit to USB3: 150MB/sec
USB to RAID0 2x3Gbit: 190MB/sec
SSD SATA2 to USB3: 180MB/sec
USB3 to SSD SATA2: 190MB/sec
SSD SATA2 to RAID0 2x3Gbit: 225MB/sec
RAID0 2x3Gbit to SSD SATA2: 135MB/sec


USB3 to SSD SATA3: 210MB/sec
SSD SATA3 to USB3: 215MB/sec
SSD SATA3 to SSD SATA 2: 266MB/sec
SSD SATA2 to SSD SATA 3: 180MB/sec
SSD SATA3 to RAMDISK: 506MB/sec <--- font="">
SSD SATA2 to RAMDISK: 220MB/sec

The Kingston SSD packaging claimed max 450 read speed, so caching probably caused those 506 :)

5/8/12

Sunsway/ST Lab PCI ATA133 2P SATA-PATA cards

Updated:  May 10th 2012

This is a PCI card that basically has two IDE ports. You can upgrade the BIOS on the card and get a Medley RAID controller feature, which will give you RAID modes 0,1 and 10.



While I was experimenting with some faulty hardware, power to one of the 4 disks in the RAID must have failed, and while the disk was not missing from the Set, per se, something had happened to it.

And lo and behold, their driver software delivers (Silicon Image Software). It rebuilt two disks that had problems. While the rebuild took place, Windows complained about a faulty hard disk presemt.

Various stages during RAID rebuild

Various stages during RAID rebuild

Good drivers !

5/4/12

RAID monster Redux


So the first build was a lot of work and shortcuts were made. Screws not fitted, no cable management, no extra cooling, etc.

The summer is coming and that means hotter indoor temperature. Better fit those extra fans now! It will surely extend the lifetime of both the disks and the computer.

I had a whole bunch of Akasa & Noctua voltage reducers to decrease the overall noise level of all the fans.

System seemd to average at around 26 degrees celsius according to Speccy. :D Room temperature is 25.1. So that's pretty decend. That machine runs 10 hardisks, a Phenom 960T, 4 GB of 1066Mhz RAM + 10 fans. It only runs a limited 64MB old Nvidia card at the moment. This rig draws about 197 watts, So the fitting of 10 fans increased the watt usage by about 10, even after ALL of then was fitted with voltage reducers.


Work in progres! 










80mm fan attached with softmounts, diagonally :)





Rear fans & PSU fan:

  1. 2x80mm rear exhausts and a stock Phenom fan
  2. 1x80mm internal intake
  3. 1x80mm external intake

Front intakes: (Both covered with dust filters.)

1x120mm Akasa (SYSFAN)
1x80mm Somethingsomething (power siphoned from molex)






Cable managemnet done!



Custom fitted 120 and 80 mm fans blwing on the
side of the lower 6 disks trough chassis holes


Finished ! With a 8mm green led outtake in front of the CPU fan.

4/9/12

My new gaming rig!

CoolerMaster HAF 922 bigtower with built in glass panel side


2x 120mm fans on top. I managed to break a blade on the original 200x200x3 fan! Have a spare fan you want to donate?! :D
Specs:
  • Gigabyte FXA990 UD7
  • Intel 80GB SSD disk for system
  • Samsung 160Gb SATA disk for data (I also moved all User directories to this drive to save space on the SSD. I can teach you how if you want!)
  • 16 Gb 1600 Mhz RAM
  • Phenom II X6 1100T CPU
  • 2x Sapphire Radeon 6790 in Crossfire
  • NXZT 5-fan controller
  • Kingston dual fan RAM cooler
  • Noctua SE CPU fan
  • Gbit Ethernet with 9K Jumbo frames
  • 24" BenQ HDMI LCD
  • Manually BIOS-overclocked to 220 FSB. (So RAM goes as 1740 and CPU at 3.3Ghz I think.
  • 2x 250GB Hitachi SATA 3.0Gbit in RAID0 on the Marvell ports
  • 1x 320GB Hitachi SATA Deskstar 3.0Gbit
  • 2x USB3 ports
  • 7.1 Surround
  • 6x USB2 ports with 2x power
  • ESATA connector
  • Corsair 750W V1 PSU

Front View

At the most, this monster draws about 500 Watts and seems to run smoothly.
One thing, the 6790 cards can be safely overclocked to 880 core speed, but do NOT mess with the Memory Speed clocks. That will get you BSODS. Also, I dont think it's completely stable on core speed 900Mhz.

A little note about the 6790 and CrossFire, it seems that you need to restart CrossFire before starting any games about half the time. Otherwise I get a flickering screen 50% of the time.

I am running Sapphire Trixx and enabled card syncing and disabled UPLS. That is supposed to do the trick. But not always it seems.

Also, if you happen to buy this motherboard and you have a Phenom II X4 960T, it will actually fit in the AM3 slot and works perfectly if your mobo has BIOS v7 or newer. (the 960T is the last of it's kind to do this. It has *both* DDR2 and DDR3 memory controllers.

I broke my 960T and had to get a new one, thats why I have a 1100T. But I fixed the broken pin on the 960T and put it back into it't proper AM2+ motherboard!

Old gaming rig rebuilt to RAID diskmonster!

So this is my main diskmonster rig:



  •  MSI K9A2+ Mobo
  • 460W PSU at the moment
  • 4 Gb Kingston HyperX 1066
  • Phenom II X4 960T
  • GeForce 8800GT
  • 2x SiL SATAPATA cards ( 320GB RAID 10,  120GB RAID 1, 640GB RAID 0)
  • 1x WD 250GB IDE drive
  • 1x Maxtor 40GB IDE for booting (Gonna move the user dirs soon, only 19 gigs free here!)
  • Gbit ethernet
  • 1TB IoMega USB external drive
  • 2TB WD USB external drive
  • About as many fans as I could fit in there.
  • A total of 10 disks!

Notes about the PCI SiL0680 SATAPATA cards: These needs to be flashed with a downloadable BIOS to enable RAID modes. This is originally just a quad channel IDE controller. But with the flashing, you get RAID modes 0,1 and 10. This is one of those 'Medley' RAID cards and it seems they are even bootable but i can't confirm that yet.

Also the gfx card in the picture is not the 8800, it's out for de-dusting. That card is just an old 64MB PCIe2.0 Nvidia card i had lying around.

The rig in it's current state draws about 180 Watts of power.