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Author Topic: new drive slow at the start of the scan , why?  (Read 8293 times)
july
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Posts: 6


« on: March 12, 2011, 02:21:46 PM »

Hi
i bought yesterday a drive
i did a test
and it's slow at the beggining of the scan after start to be fast


HDDScan Drive Test Report
Model: ST31000528AS
Firmware: CC46
LBA: 1953525168

Report By: HDDScan for Windows version 3.3
Report Date: 12/03/2011 12:06:45

Open Disk
Test : RD-Read


Executing
Block start at 24335616 time 54ms
Block start at 53711616 time 52ms
Paused




* untitled.jpg (85.47 KB, 643x263 - viewed 348 times.)
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july
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Posts: 6


« Reply #1 on: March 12, 2011, 02:32:54 PM »

and this

can't understad ?

i did the test under w7 , the drive tested is empty

the speed in the first part of the hardisk go from 18mb - 50mb - 120mb -18mb -50mb and again 120mb /second


* untitled2.jpg (39.38 KB, 210x263 - viewed 422 times.)
« Last Edit: March 12, 2011, 07:48:38 PM by july » Logged
july
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Posts: 6


« Reply #2 on: March 13, 2011, 12:26:41 PM »

start lba 0
end 15491840
block size 256
firmware CC46
test read   first screenshot


start lba 0
end 15491840
block size 256
firmware CC38
test read


* chart.jpg (71.84 KB, 643x262 - viewed 729 times.)

* chart2.jpg (64.74 KB, 643x262 - viewed 941 times.)
« Last Edit: March 13, 2011, 12:30:23 PM by july » Logged
Doomer
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Posts: 218


« Reply #3 on: March 14, 2011, 05:10:50 PM »

Hi
Looks like your SATA controller cuts the speed
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july
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Posts: 6


« Reply #4 on: March 14, 2011, 05:13:16 PM »

Hi
Looks like your SATA controller cuts the speed
but i have 2 hard disks , with different firmware

why should only 1 be so slow in the inner part of the disk ?
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Doomer
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« Reply #5 on: March 14, 2011, 07:56:55 PM »

I don't see any slow drives
Which one is slow and which one is fast?
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july
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Posts: 6


« Reply #6 on: March 14, 2011, 10:35:20 PM »

I don't see any slow drives
Which one is slow and which one is fast?
the  ST31000528AS with  Firmware: CC46 , is the first screenshot chart

the speed  continue to oscillate, fluctuate in the inner zone , after i guess 50gb start to be stable @ 120mb/s


did you see a screenshot like i posted?
do you think it's normal?

thanks
cheers
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Doomer
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« Reply #7 on: March 14, 2011, 11:51:13 PM »

No I don't think they normal but it's hard to tell why
Can you show SMART from both drives?
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july
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« Reply #8 on: March 15, 2011, 09:10:17 AM »

No I don't think they normal but it's hard to tell why
Can you show SMART from both drives?
yes

did you see in the past a graph, chart like chart2

* ST31000528ASCC38.htm (39.56 KB - downloaded 226 times.)
* ST31000528ASCC46.htm (39.56 KB - downloaded 251 times.)
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Doomer
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« Reply #9 on: March 15, 2011, 05:31:59 PM »

Nothing criminal in SMART
Probably the problem is elsewhere
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