07-07-2008
Thanks man..
You have given me good information...
What is software error and what is hardware error in "iostat" command output..?
I have got two hard disks. One hard disk contains bad sectors.. I have implemented root mirror on that machine.. It has shown some messages on console and when i used "metastat" command it shown that "needs maintenance" state for one submirror.. Was it panic condition regarding disk operation?
Any documentation about that errors (panic )? Just send me a link...
Thanks a lot...
Last edited by younus_syed; 07-07-2008 at 04:45 PM..
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DRTEST(8) System Manager's Manual DRTEST(8)
NAME
drtest - standalone disk test program
DESCRIPTION
Drtest is a standalone program used to read a disk track by track. It was primarily intended as a test program for new standalone drivers,
but has shown useful in other contexts as well, such as verifying disks and running speed tests. For example, when a disk has been format-
ted (by format(8)), you can check that hard errors has been taken care of by running drtest. No hard errors should be found, but in many
cases quite a few soft ECC errors will be reported.
While drtest is running, the cylinder number is printed on the console for every 10th cylinder read.
EXAMPLE
A sample run of drtest is shown below. In this example (using a 750), drtest is loaded from the root file system; usually it will be
loaded from the machine's console storage device. Boldface means user input. As usual, ``#'' and ``@'' may be used to edit input.
>>>B/3
%%
loading hk(0,0)boot
Boot
: hk(0,0)drtest
Test program for stand-alone up and hp driver
Debugging level (1=bse, 2=ecc, 3=bse+ecc)?
Enter disk name [type(adapter,unit), e.g. hp(1,3)]? hp(0,0)
Device data: #cylinders=1024, #tracks=16, #sectors=32
Testing hp(0,0), chunk size is 16384 bytes.
(chunk size is the number of bytes read per disk access)
Start ...Make sure hp(0,0) is online
...
(errors are reported as they occur)
...
(...program restarts to allow checking other disks)
(...to abort halt machine with ^P)
DIAGNOSTICS
The diagnostics are intended to be self explanatory. Note, however, that the device number in the diagnostic messages is identified as
typeX instead of type(a,u) where X = a*8+u, e.g., hp(1,3) becomes hp11.
SEE ALSO
format(8V), bad144(8)
AUTHOR
Helge Skrivervik
4.2 Berkeley Distribution May 19, 1986 DRTEST(8)