On Wed, 9 Jul 2008, Gerhard Wiesinger wrote:
On Tue, 8 Jul 2008, Justin Piszcz wrote:
Hi Gerhard,
Please run:
smartctl -t short /dev/sdc
sleep 300
smartctl -t long /dev/sdc
Wait 2-3 hours or more and:
smartctl -a /dev/sdc
I'm changing the disk one more time ...
Once you replace the disk please re-run the tests shown above and show us
the output please.
How many SAMSUNG disks have you gone through, do they really fail that
often?
Hello Justin!
Setup Power suppply:
sda-sdd are on the same power supply cable, sde, sdf are on a second one.
I changed the disk to a new SAMSUNG disk and the first raid resync did NOT
work and I had 1 reallocated sector ...
Also the RMA guy at our very good computer store (http://www.ditech.at/) were
helpfull in changing the disks and he hates the SAMSUNG disks because of high
RMA rates ...
But:
smart checks were ok (details see below). The smart checks are shown as
aborted, but before running the next tests they were at "Completed without
error" (strange).
Now sdc has it's own power cable and I'm running a raid resync now.
Power supply is:
ATX 385 Watt, ENERMAX PRO82+
Load on power supply measured on 220V side with a true RMS Wattmeter:
Power off: 6,5W
Max seen at power up: 196W
BIOS: 114,1W
Linux idle: 92,0W
100% Disk I/O, 100% CPU load: 149,6W
=> Everything fine and as expected.
I'll keep you up to date ...
Hello!
It looks like it works now without any problems:
*) Serveral RAID checks (once a day)
*) smartctl checks were fine
*) Only one reallocated sector
*) Writing the disk full with random data
So the possibilities for the fault are:
*) SATA power connector (most likely I would guess)
*) 4th disk is now ok
*) Other 220V power cable connector through the Wattmeter
Ciao,
Gerhard
--
http://www.wiesinger.com/
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