Date: Wed, 12 May 2010 15:53:38 -0700 From: Chuck Swiger <cswiger@mac.com> To: "A. Wright" <andrew@qemg.org> Cc: FreeBSD - <freebsd-questions@freebsd.org> Subject: Re: Long I/O pauses on same mass storage Message-ID: <F73FFDAB-EB1F-4775-9D3A-66A03CE39803@mac.com> In-Reply-To: <alpine.BSF.2.00.1005121726090.64303@qemg.org> References: <alpine.BSF.2.00.1005121035480.64303@qemg.org> <201005121456.o4CEurEZ078671@lava.sentex.ca> <alpine.BSF.2.00.1005121632520.64303@qemg.org> <BDDFA682-70FC-4240-AF3C-6AE03168FFE7@mac.com> <alpine.BSF.2.00.1005121726090.64303@qemg.org>
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Hi-- On May 12, 2010, at 1:27 PM, A. Wright wrote: > 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 383 > 10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0 > 11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0 > 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 11 > 192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 10 > 193 Load_Cycle_Count 0x0032 189 189 000 Old_age Always - 33334 Thanks for real data to work from. There's no signs of surface failure with high reallocated sectors or anything, but your drive is parking it's heads nearly 100 times an hour. Someone else suggested this was a "green firmware" drive, so it might be spinning down and so forth trying to save power, and the OS is complaining because it takes a while to spin back up and become online. I've heard rumors that there exists an WDIDLE utility which might be able to tweak the firmware which might help. Regards, -- -Chuck
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