Pathetic SATA Raid performance

Blackmagic Design

Pathetic SATA Raid performance

Posted by Matthew Beall on November 13, 2005 at 4:22 am

I just installed a new motherboard for PCI-X..

Then, I installed the Decklink-HD card and a RocketRaid 2224 RAID controller..

I hooked up 4 brand new Hitatchi 200Gb SATA-II drives to the raid controller and turned on the machine..

First thing I did was install the drivers for the decklink and rocketraid cards.

The Rocketraid controller bios found the drives, and I used the Management console to create a RAID-0 raid array.. I then initialized and formated it in Windows System Tools/Disk Management as an NTFS drive..

Excitedly, I ran the disk speed test utility provided by decklink..

The results? Write and read are 14.4Mb/s..

Why so slow? What did I do wrong?

-Matthew

Bob Zelin replied 20 years, 5 months ago 8 Members · 14 Replies
14 Replies

Viveck
November 13, 2005 at 2:01 pm

Check if both boards are sharing IRQ
try different slot
Bob Zelin
November 13, 2005 at 2:50 pm

did you plug the highpoint card into a PCI-X slot ? Are you using the Highpoint X4
chassis, and are you using the Infiniband cable, or are you using the “internal” SATA drive ports?

Bob Zelin
Matthew Beall
November 13, 2005 at 3:06 pm

“Check if both boards are sharing IRQ
try different slot”

There are only two PCI-X slots available, slot 1 has the decklink card, slot 2 has the RocketRaid card..

I don’t see any errors (!) in the hardware manager..

“did you plug the highpoint card into a PCI-X slot ? ”

Yes, PCI-X slot 2.

“Are you using the Highpoint X4
chassis?”

I don’t know what that is, sorry.. ?

“and are you using the Infiniband cable”

If that is the 4 blue cables that came with the card, yes (everything is internal to the computer case, not external RAID drives)..

“or are you using the “internal” SATA drive ports?”

No, the SATA controller on the motherboard is not even enabled..

Thank you for the help guys, I really appreciate it..

-Matthew
Matthew Beall
November 13, 2005 at 3:09 pm

“or are you using the “internal” SATA drive ports?”

No, the SATA controller on the motherboard is not even enabled..

Wait, I misunderstood you.. If you mean the internal SATA drive ports ON THE ROCKETRAID CARD, then yes, that is what I’m using..

-Matthew
Viveck
November 13, 2005 at 3:19 pm

remove Decklink and then check the raid speed with some other utility (disk speed won’t work without decklink)
Kaspar Kallas
November 13, 2005 at 4:08 pm

How big is your stipr size make sure it is at least 128 or 256kb

-Kaspar
Bob Zelin
November 13, 2005 at 4:20 pm

since you have both PCI-X and PCI slots, use the Highpoint on one buss, and the Decklink on the other buss – then run your speed tests.

Bob Zelin
Oscar G.
November 14, 2005 at 10:43 am

Hy

I don’t know how the internal bios of your adapter is made of, but check if cache memory for read and write of the hard drive (and may be the adapter) are not turned off. Sometimes with factory settings it could be, to prevent data lost in case of power failure.

regards

Oscar
Matthew Beall
November 14, 2005 at 1:43 pm

Ok, last night I tried a couple things.. First, I set the PCI-X speed to 133Mhz instead of Auto. No change. Then, I pulled the DecklinkHD card. No change. Then I put the RocketRaid card in the other PCI-X slot (the one the decklinkHD card was in). No change.

I guess I’ll call RocketRaid (High Point Technologies) tech support today..

🙁

-Matthew
Sameer Shrivastava
November 14, 2005 at 3:20 pm

Hi,
Try striping these disks as four simple volumes and check individual speed of each.

goodluck
sameer shrivastava

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