| Author |
Message |
mttk
Guest
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 Posted:
Mon Sep 20, 2004 12:40 pm Post subject:
scsi HD slow then IDE |
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i have adaptec scsi card 19160 U160,
and 2 HD IBMIC35L036UW D210-0 SCSI (10,000 prm)
on dual pentume III machine, 1 gig ram
on win2000 (with latest SP).
these 2 HD install as software mirror.
i try to copy 2 gig file into these HD, the result:
as miror transfer avg: 13 MBps
as single HD transfer avg: 20 MBps
have a solution for this problam?
by the way, I try also WD 7,500 IDE, 120GB, the result is: 25 MBps |
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Ron Reaugh
Guest
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| Posted:
Tue Sep 21, 2004 2:07 am Post subject:
Re: scsi HD slow then IDE |
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"mttk" <aa> wrote in message news:414e980d$1@news.012.net.il...
| Quote: | i have adaptec scsi card 19160 U160,
and 2 HD IBMIC35L036UW D210-0 SCSI (10,000 prm)
on dual pentume III machine, 1 gig ram
on win2000 (with latest SP).
these 2 HD install as software mirror.
i try to copy 2 gig file into these HD, the result:
as miror transfer avg: 13 MBps
as single HD transfer avg: 20 MBps
have a solution for this problam?
by the way, I try also WD 7,500 IDE, 120GB, the result is: 25 MBps
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All the results above are entirely as expected. Think about them and learn. |
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Folkert Rienstra
Guest
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| Posted:
Tue Sep 21, 2004 2:39 am Post subject:
Re: scsi HD slow then IDE |
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"mttk" <aa> wrote in message news:414e980d$1@news.012.net.il
| Quote: | i have adaptec scsi card 19160 U160,
and 2 HD IBMIC35L036UW D210-0 SCSI (10,000 prm)
on dual pentume III machine, 1 gig ram
on win2000 (with latest SP).
these 2 HD install as software mirror.
i try to copy 2 gig file into these HD, the result:
as miror transfer avg: 13 MBps
as single HD transfer avg: 20 MBps
have a solution for this problam?
|
Is disconnect/reconnect enabled in controller bios/driver tab.
Differences in write caching between the two modes (single vs mirror)?
Else it is the software raiding that adds the overhead.
| Quote: |
by the way, I try also WD 7,500 IDE, 120GB, the result is: 25 MBps
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Don't compare new IDE to old SCSI and then there is no problem.
Or check the specs before drawing conclusions. |
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