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Old 03-05-2009
amio amio is offline
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Join Date: Feb 2009
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hdparm + HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl

Hi All,
Am finding performance of my SD card using hdparm.

Code:
hdparm -tT /dev/BlockDev0

/dev/BlockDev0:
 Timing cached reads:   1118 MB in  2.00 seconds = 558.61 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
ioctl for device
 Timing buffered disk reads:   14 MB in  3.13 seconds =   4.47 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
ioctl for device
Am not aware of "HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device". What actually makes it to occur?? What does this problem mean? How to resolve it??

Thanks in advance.
Amio
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