#18 Raw devices read access

[Dani]

It would be nice to be able to do read tests with raw
devices while having data on those disks.

It takes a lot of time to clean the disk, take a
measurement and restore the database just to make a
simple read IO measurement.

[Ming Zhang]

Logged In: YES
user_id=896657

currently u can read a raw device without destroying the
data. i am not quite understand why u need to clean the data.

[Dani]

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user_id=1031332

From User Guide "Physical drives are displayed with a blue
disk icon and the name PHYSICALDRIVE:n (only if they
contain nothing but free space)."
If I have a drive with a partition it won't show up in Iometer. I
have to delete the partition in order to be seen by Iometer.
Remember I'm talking about raw devices and the partition
does not contains any filesystem.