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Message |
McMahon
Guest
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 Posted:
Sat Oct 23, 2004 3:00 am Post subject:
Newbie |
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Hello what is the fastest way to connect SCSI devices???
I am only interested in the fastest (size is no object as I only want the
O/S on the fast disks sata will be used for storage am I right in thinking
that a PCI SCSI card is no good?
Is there a Socket 939 board out there with built in SCSI?
What is the fastest drive on SCSI and can they be RAID 0'ed? |
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Gregory Toomey
Guest
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| Posted:
Sat Oct 23, 2004 8:18 am Post subject:
Re: Newbie |
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McMahon wrote:
| Quote: | Hello what is the fastest way to connect SCSI devices???
I am only interested in the fastest (size is no object as I only want the
O/S on the fast disks sata
sata is not scsi |
| Quote: | will be used for storage
am I right in thinking
that a PCI SCSI card is no good?
|
64 bit scsi cards are about 320 megabytes/sec, which is usually fast enough.
| Quote: |
Is there a Socket 939 board out there with built in SCSI?
What is the fastest drive on SCSI and can they be RAID 0'ed?
|
15,000 RPM Maxtor?
Read "Stop the RAID0 Insanity!"
Front page of http://storagereview.com/
Also see their reviews of fast scsi disks.
gtoomey
www.ausinvetor.com Australian Investor Forum |
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McMahon
Guest
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| Posted:
Sat Oct 23, 2004 3:21 pm Post subject:
Re: Newbie |
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Thank you VERY MUCH Although it is disappointing reading but will save me
money
"Gregory Toomey" <nospam@bigpond.com> wrote in message
news:2tu4ctF23buh7U1@uni-berlin.de...
| Quote: | McMahon wrote:
Hello what is the fastest way to connect SCSI devices???
I am only interested in the fastest (size is no object as I only want
the
O/S on the fast disks sata
sata is not scsi
will be used for storage
am I right in thinking
that a PCI SCSI card is no good?
64 bit scsi cards are about 320 megabytes/sec, which is usually fast
enough.
Is there a Socket 939 board out there with built in SCSI?
What is the fastest drive on SCSI and can they be RAID 0'ed?
15,000 RPM Maxtor?
Read "Stop the RAID0 Insanity!"
Front page of http://storagereview.com/
Also see their reviews of fast scsi disks.
gtoomey
www.ausinvetor.com Australian Investor Forum
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Bryan Hoover
Guest
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| Posted:
Sun Oct 24, 2004 11:13 am Post subject:
Re: Newbie |
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McMahon wrote:
| Quote: | Thank you VERY MUCH Although it is disappointing reading but will save me
money
|
Up late, and lurking...
As for RAID 0, don't be too terribly disappointed. Don't fail to realize the
gist of these articles is that RAID 0 is not the answer for application
performance in most cases. Simply setting up a RAID 0 array won't make your
old Pentium 1 a speed demon.
Bottom line is that you can get higher throughput (higher than that of any
single drive capability) with a RAID 0 array. And if you have applications
that can use that higher throughput, you'll likely see increased
performance. I think the articles are just saying RAID 0 is not a magic
bullet, which, if you think about it, is just common sense, but you're asking
questions, and so probably just in the starting to think about it phase.
Just thought I'd mention this because at a glance, the linked reading might
lead one to think RAID 0 is useless.
Aside from performance, if you like to tinker, RAID 0 can be a blast. I'm
having a ball with an older SCSI 64 bit RAID card -- the illustrious, and
knarly, Mylex 1164P, and bunch of older Wester Digital drives. Haven't even
installed the last 3 of the 9 of them yet. So far, I'm getting about 120MB/s
on around 200.00 investment (less really, 'cause still got another 3 drives
to add).
Another cool thing about RAID is you can improve performance over time
depending on how much you can spend. You can start off with two or more
cheap drives, and each time you add one, you increase performance (and
capacity).
And of course, there are the RAID levels used for redunancy, data integrity.
Having said all that, if you just want faster OS operation, then no, you
probably don't want RAID 0 :).
Anyone, if I've said anything misleading, or incorrect here, please correct,
as I'm fairly new to this RAID business too.
Bryan
| Quote: |
"Gregory Toomey" <nospam@bigpond.com> wrote in message
news:2tu4ctF23buh7U1@uni-berlin.de...
McMahon wrote:
Hello what is the fastest way to connect SCSI devices???
I am only interested in the fastest (size is no object as I only want
the
O/S on the fast disks sata
sata is not scsi
will be used for storage
am I right in thinking
that a PCI SCSI card is no good?
64 bit scsi cards are about 320 megabytes/sec, which is usually fast
enough.
Is there a Socket 939 board out there with built in SCSI?
What is the fastest drive on SCSI and can they be RAID 0'ed?
15,000 RPM Maxtor?
Read "Stop the RAID0 Insanity!"
Front page of http://storagereview.com/
Also see their reviews of fast scsi disks.
gtoomey
www.ausinvetor.com Australian Investor Forum
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maskmelon
Guest
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| Posted:
Thu Oct 28, 2004 11:06 am Post subject:
Re: Newbie |
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Hi Im also a newbie... I recently shorted/broke my HD,. I guess it was
time to go..although it was only few years old...
Anyhow I would like to ask for some advice on "RAID" I am looking for
quick OS operation / fast data transfers.
Here's the scoop, KT3 Ultra MSI board w/RAID ata 133/100 capable.
I went and bought 2 identical maxtor drives 80 gigs 7200rpm
I am not able to load up the array utility... Everything's connected,
HD powers up and spins, is there something wrong with the on board
raid (promisefasttrack chip) The bios does not pick up the IDE3,4
(raid) I am in need of desperate help, although I can connect the new
Harddrives with the regular IDE slot, I would rather try to get some
kind of performance out of it.
If I were to return the Maxtors in return for scsi drives
w/controllers Will I be able to hit the similar price range?
(I 've paid about $160-170 for the maxtors)
Help!! :idea: |
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Bryan Hoover
Guest
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| Posted:
Tue Nov 02, 2004 9:38 am Post subject:
Re: Newbie |
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Bryan Hoover wrote:
| Quote: | knarly, Mylex 1164P, and bunch of older Wester Digital drives. Haven't even
installed the last 3 of the 9 of them yet. So far, I'm getting about 120MB/s
on around 200.00 investment (less really, 'cause still got another 3 drives
to add).
|
Err, a bit carried away with optimism there, I'm afraid -- or a misread benchmark
-- could have sworn I saw a IOMeter pop up to that at one point.
It appears, after having installed the additional 3 drives, total of 9, 3 on each
channel, the 33mhz, 64 bit bus is saturated with an effective throughput of
93MB/s. Still, pretty good though. And I can probably use one of the three
channels, 3 drives, for swap. All the drive/data source indepence is really
nice, regardless.
I had a difficult time believing this, but I've learned (from this article:
http://www1.us.dell.com/content/topics/global.aspx/power/en/ps1q01_radhak?c=us&cs=555&l=en&s=biz
)
the general expectation is about 35% of bandwidth will be actual data throughput
-- the rest being meta overhead (wow!). My writes are still too low to mention,
and I think this is a function of win2k write i/o handling.
I'm happy just to get what the bus is capable of, and RAID 0 is certainly capable
of that -- assuming I'm correct about the bus saturation for this 33mhz, 64bit
bus anyway.
Would appreciate help if higher rate is possible. And, does anyone know how to
get win2k pro to perform better with RAID 0 writes?
Bryan
| Quote: | Another cool thing about RAID is you can improve performance over time
depending on how much you can spend. You can start off with two or more
cheap drives, and each time you add one, you increase performance (and
capacity).
And of course, there are the RAID levels used for redunancy, data integrity.
Having said all that, if you just want faster OS operation, then no, you
probably don't want RAID 0 :).
Anyone, if I've said anything misleading, or incorrect here, please correct,
as I'm fairly new to this RAID business too.
Bryan
"Gregory Toomey" <nospam@bigpond.com> wrote in message
news:2tu4ctF23buh7U1@uni-berlin.de...
McMahon wrote:
Hello what is the fastest way to connect SCSI devices???
I am only interested in the fastest (size is no object as I only want
the
O/S on the fast disks sata
sata is not scsi
will be used for storage
am I right in thinking
that a PCI SCSI card is no good?
64 bit scsi cards are about 320 megabytes/sec, which is usually fast
enough.
Is there a Socket 939 board out there with built in SCSI?
What is the fastest drive on SCSI and can they be RAID 0'ed?
15,000 RPM Maxtor?
Read "Stop the RAID0 Insanity!"
Front page of http://storagereview.com/
Also see their reviews of fast scsi disks.
gtoomey
www.ausinvetor.com Australian Investor Forum
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