Date: Tue, 26 Jan 2010 20:42:13 +0100 From: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> To: Tommi =?ISO-8859-1?Q?L=E4tti?= <sty@iki.fi> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>, Dan Naumov <dan.naumov@gmail.com> Subject: Re: immense delayed write to file system (ZFS and UFS2), performance issues Message-ID: <20100126204213.033bbebe.gerrit@pmp.uni-hannover.de> In-Reply-To: <f43ef3191001261053q252826cp3fcca095860ac3bf@mail.gmail.com> References: <cf9b1ee01001261045j3b0901cen74469a545e47fb49@mail.gmail.com> <f43ef3191001261053q252826cp3fcca095860ac3bf@mail.gmail.com>
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On Wed, 27 Jan 2010 03:53:20 +0900 Tommi L=E4tti <sty@iki.fi> wrote about Re: immense delayed write to file system (ZFS and UFS2), performance issues: TL> Well AFAIK WD certifies that there's no extra risk involved unless you TL> go over 300.000 park cycles. On the other hand, my 9 month 1.5tb green TL> drive has over 200.000 cycles. I think the RE2 drives I have here are certified for 600k cycles. TL> Maybe check if you can disable the idle timer using WDIDLE3... works TL> for my drives (although it did some strange things to one out of the 6 TL> drives --> decreased reported sector count and the zfs invalidated the TL> pool :/ ). I can only encourage everyone having this problem to report to WD's support about this. Today I received an update for the firmware of RE4-drives (which I did not try out yet). IMHO, the more people complain about these issues, the higher is the chance that WD will do something about it. cu Gerrit
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