Fastest workstation storage

  • Thread starter Thread starter .::SuperBLUE::.
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U comp.periphs.scsi .::SuperBLUE::. said:
This workstation is used for various 35mm film and hdtv video production
effects.
Click to expand...

Now we're talking... :)

I believe you'll need some kind of redundancy (don't forget backups too)...
RAID10 would be my option here... Speed of RAID0 + redundancy of RAID1...
I'd go with hardware based RAID controller... Check ICP Vortex and LSI
Logic... Don't know about Adaptec's, some models aren't very good
performers...

http://www.icp-vortex.com/english/product/prodrdy_e.htm

http://www.lsilogic.com/products/megaraid/index.html


BTW, there could be some problems with software RAID (hence, hardware RAID
too!)... Like some strange drops in read/write speed if stripe size is not
set properly... Don't ask me how to set it properly, try every stripe size,
and see how it performs (using HDTach or some other benchmark utility)...
Just to let you know about that... :)


--
"Divovskis li crncugau komponiru ?" upita koka guzi biljkau vjesu.
"Ne znam ja nista !" rece medoo zigoshe "Ja samo rasisto podmazuje trijezanm !" By runf

Damir Lukic, calypso@_MAKNIOVO_fly.srk.fer.hr
a member of hr.comp.hardver FAQ-team
 
Well, to tell you the truth... RAID0 over 12 Hitachi 160GB/8MB 7K250 drives
(SATA), on 3Ware 9500S-12 SATA RAID controller, and I could get 350MB/s read
and 210MB/s write speed... How the heck could you get 300MB/s on 4 ATA
drives?!!!!!

3Ware 9500S-12, 128MB cache, PCI-X 66MHz
12x Hitachi 7K250, 160GB/8MB, 64kb stripe size
Click to expand...
PCI-X/66 is 480MB/s, the 3ware's CPU is not capable of filling it.

On previous generation chipsets, the ICH5 was measured around 200MB/s with 4
drives a couple years ago. The ICH6-MCH link is as fast as PCI-X/133, and is
available on $100 mainboards.

Hardware RAID cards often have a STR bottleneck, which is not important for
most server applications.
 
Well, to tell you the truth... RAID0 over 12 Hitachi 160GB/8MB 7K250
drives (SATA), on 3Ware 9500S-12 SATA RAID controller, and I could get
350MB/s read and 210MB/s write speed... How the heck could you get 300MB/s
on 4 ATA drives?!!!!!
Click to expand...

Under ideal conditions for one rotation?
 
U comp.periphs.scsi Eric Gisin said:
PCI-X/66 is 480MB/s, the 3ware's CPU is not capable of filling it.
Click to expand...

Theoretically - 64bit * 66MHz / 8bit/byte= 528MB/s

I am not so sure that 9500S-12 is not capable of doing it... We're talking
about real read/write speed (used by BlackMagic Design application)...
On previous generation chipsets, the ICH5 was measured around 200MB/s with 4
drives a couple years ago. The ICH6-MCH link is as fast as PCI-X/133, and is
available on $100 mainboards.
Click to expand...

Well, great... On which drives, and what speed is measured? Host to buffer
or what? 200MB/s on 4 drives is hard to believe... Real performanse, of
course...


--
Djedica leti drazesan lubenicao kolje satima u tramvaju ?
By runf

Damir Lukic, calypso@_MAKNIOVO_fly.srk.fer.hr
a member of hr.comp.hardver FAQ-team
 
Fast is a generic term. Be more specific. Fast RAID for a
This workstation is used for various 35mm film and hdtv video production
effects.
Click to expand...

Do you have or already decided what video production hardware
(like capture cards) you are going to have?

Same for the workstation. Do you have it already and now looking
for a fast storage system, or still trying to decide which workstation
to get?
 
Eric Gisin said:
This is an A/V workstation.
Click to expand...

So why SCSI for the OS at all.
7200 IDE has taken over 10K SCSI in this application, because of price and
drive capacity.

4 IDE drives will do 300MB/s today,
Click to expand...

Rapters, which are 10K. And you never said 'Raid' IDE for data.
an Ultra320 channel is less.
Click to expand...

But not by that much using packetized-SCSI protocol.
And the 39320 is dual channel.
Tell us Folknuts, what would you recommend?
Click to expand...

You were the one that said : "Don't be stupid". Not me.
Sounds like this is your favourite stopword with little meaning.
Or are you just going to troll?
Click to expand...

Bad Rod 'The Kane' Speed impersonation: All posture and no show.
 
Well, to tell you the truth... RAID0 over 12 Hitachi 160GB/8MB 7K250 drives
(SATA), on 3Ware 9500S-12 SATA RAID controller, and I could get 350MB/s read
and 210MB/s write speed...
Click to expand...
How the heck could you get 300MB/s on 4 ATA drives?!!!!!
Click to expand...

4 (second generation) Raptors, on outer zones.
 
? Hmmm? 39320 is, accoring to Adaptec's support page
Click to expand...

And why look at the support page?
plain SCSI HBA... RAID?
Sorry, I couldn't find any RAID funcion in it... Any links?
Click to expand...

Odd.
'HostRAID' gives me several references including
"Adaptec SCSI Card 39320(D)-R" product specification pages.
AFAICT the HostRAID support is in the SCSI chip itself so I can't
see how there would be a version of 39320 without that capability.
OK, I get your point...


Well, yes, who cares?


I intend to get as much info as possible...
Click to expand...

All answers were already in that post.
 
U comp.periphs.scsi Folkert Rienstra said:
'HostRAID' gives me several references including
"Adaptec SCSI Card 39320(D)-R" product specification pages.
AFAICT the HostRAID support is in the SCSI chip itself so I can't
see how there would be a version of 39320 without that capability.
Click to expand...

Hmmm, HostRAID... My bad, you're right... It has got RAID 0/1 support...
I tried with RAID adapters from Adaptec at this page:

http://www.adaptec.com/worldwide/su...US&cat=/Technology/RAID&fromPage=supportindex
All answers were already in that post.
Click to expand...

In some other post, not the one I answered firstly, read again...
 
Hmmm, HostRAID...
Click to expand...

Yeah, Hmmm, HostRAID.
My bad, you're right...
Click to expand...

After you had been warned.
Some people would make sure not to ****-up twice.
Apparently, you are not among them.
It has got RAID 0/1 support...
Right.

I tried with RAID adapters from Adaptec at this page:
Click to expand...
http://www.adaptec.com/worldwide/su...US&cat=/Technology/RAID&fromPage=supportindex

Your problem.
In some other post, not the one I answered firstly, read again...
Click to expand...

Read it yourself, (if you can).
"15krpm U320 SCSI" answered all three questions.
 
Right.
Click to expand...

But that doesn't make it RAID controller... It's normal HBA with RAID 0/1
support... Where are RAID 0+1, 10, 5?
Read it yourself, (if you can).
"15krpm U320 SCSI" answered all three questions.
Click to expand...

So, what does that say? 15krpm drive, U320 SCSI, so? Depends on application,
it could be 10krpm U160 SCSI too, and work just as good as 15krpm/U320...

--
U predavaonici naradndzaa izdrkava tirkizan Muslimnu drku
danas ? By runf

Damir Lukic, calypso@_MAKNIOVO_fly.srk.fer.hr
a member of hr.comp.hardver FAQ-team
 
But that doesn't make it RAID controller...
Click to expand...

Yes, that does make it a RAID controller, just not an all purpose one.
It's normal HBA with RAID 0/1 support...
Click to expand...
Where are RAID 0+1, 10,
Click to expand...

Didn't see it excluded either.
5?
Click to expand...

Who needs that.
Ok, you can do with less drives but that's offset by a more expensive -yet slower- controller.
So, what does that say? 15krpm drive, U320 SCSI, so?
Click to expand...

Answered all three questions: fast read, fast write *and* fast seek.
Depends on application, it could be 10krpm U160 SCSI too, and work
just as good as 15krpm/U320...
Click to expand...

Yup, and he didn't go for that, so there.
 
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