Date: Tue, 26 Jan 2010 20:45:10 +0200 From: Dan Naumov <dan.naumov@gmail.com> To: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: RE: immense delayed write to file system (ZFS and UFS2), performance issues Message-ID: <cf9b1ee01001261045j3b0901cen74469a545e47fb49@mail.gmail.com>
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> You're welcome. I just feel as bad for you as for everyone else who > has bought these obviously Windoze optimized harddrives. Unfortunately > neither wdidle3 nor an updated firmware is available or functioning on > the latest models in the Green series. At least that's what I've read > from other people having this issue. WD only claims they don't support > Linux and they probably have never heard of FreeBSD. This discussion made me have a look at my 2tb WD Green disks, one of them is from May 2009, looks pretty reasonable : Device Model: WDC WD20EADS-00R6B0 Serial Number: WD-WCAVY0301430 Firmware Version: 01.00A01 9 Power_On_Hours 0x0032 093 093 000 Old_age Always - 5253 193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 55 And another is very recent, from December 2009, this does look a bit worrying in comparison: Device Model: WDC WD20EADS-32R6B0 Serial Number: WD-WCAVY1611513 Firmware Version: 01.00A01 9 Power_On_Hours 0x0032 100 100 000 Old_age Always - 136 193 Load_Cycle_Count 0x0032 199 199 000 Old_age Always - 5908 The disks are of exact same model and look to be same firmware. Should I be worried that the newer disk has, in 136 hours reached a higher Load Cycle count twice as big as on the disk thats 5253 hours old? - Sincerely, Dan Naumov
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