| Author |
Message |
Kenny
Guest
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 Posted:
Mon Oct 18, 2004 5:40 am Post subject:
Seagate + Tekram |
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Hi all,
I'm a novice to scsi-configuration and was hoping someone in here
could help we onto the right track. I have searched the net, but
didn't find any answer to the following:
I have a Tekram U390 U4W SCSI host adapter and a Seagate ST336607LW
harddisk.
When I first booted, the scsi-bios showed the disk with a 8-bit wide
interface and 40 mb/s as sync... I entered the bios and changed this
to 16 bits wide and the sync now shows 80 mb/s.
But, my question is: how do I configure this to be 320 mb/s or have i
misunderstood the consept of scsi-320? I mean, besides from the sync
beeing 80 mb/s - I have ran disk-benchmarks and it shows I only get a
approx. 98 mb/s for reads.. this is even slower than my S-ATA disk (@
116 mb/s)... :-S
The cable is connected to the scsi4 internal connector on the Tekram
card and is terminated in the other end. The harddisk is the only disk
in the chain. It all sits on a AbitIC7-G motherboard.
What do I do wrong here? I appreciate any help... :-/
--
Kenny |
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Folkert Rienstra
Guest
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| Posted:
Tue Oct 19, 2004 3:06 am Post subject:
Re: Seagate + Tekram |
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"Kenny" <post@optisoft.no> wrote in message news:dcb0118f.0410171740.3ce695c7@posting.google.com
| Quote: | Hi all,
I'm a novice to scsi-configuration
|
But you can get your terminology right, right?
Minimize the number of typos, proofread your post before sending?
| Quote: | and was hoping someone in here could help we onto the right track.
I have searched the net, but didn't find any answer to the following:
I have a Tekram U390 U4W SCSI host adapter and a Seagate
ST336607LW harddisk.
When I first booted, the scsi-bios showed the disk with a 8-bit wide
interface and 40 mb/s as sync...
|
'as sync'?
| Quote: | I entered the bios and changed this to 16 bits wide and the sync now
shows 80 mb/s.
|
Make that MB/s?
And if *this* value was changed from default, what else is?
Oh, and check for Domain Validation too.
| Quote: |
But, my question is: how do I configure this to be 320 mb/s or have i
misunderstood the consept of scsi-320? I mean, besides from the sync
beeing 80 mb/s - I have ran disk-benchmarks and it shows I only get a
approx. 98 mb/s for reads..
|
So obviously you are not running at 80MB/s.
And besides, that is a buffer read, not STR.
On a 33MHz PCI bus this is probably limited to ~110-120MB/s anyway.
| Quote: | this is even slower than my S-ATA disk (@ 116 mb/s)... :-S
|
But your SATA controller is not on the PCI bus, the drive with certainty
doesn't transfer data at 116MB/s, and as a burst rate for a 150MB/s bus
it doesn't sound so swell either, although not unsimilar -percentage wise-
to the SCSI's 98MB/s (vs 133MB/s PCI bus).
| Quote: |
The cable is connected to the scsi4 internal connector on the Tekram
card and is terminated in the other end.
The harddisk is the only disk in the chain.
|
So even at 80MB/s the drive may run marginally slower than it's ~66 MB/s
STR top.
| Quote: | It all sits on a Abit IC7-G motherboard.
|
Yes, and?
Isn't that a desktop board with 133MB/s PCI bus?
| Quote: |
What do I do wrong here? I appreciate any help... :-/ |
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Kenny
Guest
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| Posted:
Wed Oct 20, 2004 1:40 pm Post subject:
Re: Seagate + Tekram |
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"Folkert Rienstra" <see_reply-to@myweb.nl> wrote in message > > I'm a novice to scsi-configuration
Thank you Folkert, for an excellent and intelligent answer!
| Quote: | But you can get your terminology right, right?
Minimize the number of typos, proofread your post before sending?
And if *this* value was changed from default, what else is?
Oh, and check for Domain Validation too.
So obviously you are not running at 80MB/s.
And besides, that is a buffer read, not STR.
On a 33MHz PCI bus this is probably limited to ~110-120MB/s anyway.
But your SATA controller is not on the PCI bus, the drive with certainty
doesn't transfer data at 116MB/s, and as a burst rate for a 150MB/s bus
it doesn't sound so swell either, although not unsimilar -percentage wise-
to the SCSI's 98MB/s (vs 133MB/s PCI bus).
So even at 80MB/s the drive may run marginally slower than it's ~66 MB/s
STR top.
Yes, and?
Isn't that a desktop board with 133MB/s PCI bus? |
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