Date: Fri, 25 Jan 2013 01:31:53 +0200 From: Nikolay Denev <ndenev@gmail.com> To: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> Cc: freebsd-fs@freebsd.org, freebsd-hackers@freebsd.org, Adam Nowacki <nowakpl@platinum.linux.pl> Subject: Re: ZFS regimen: scrub, scrub, scrub and scrub again. Message-ID: <4241CA0A-9AFC-4EB4-89B7-18BC7E645B03@gmail.com> In-Reply-To: <alpine.BSF.2.00.1301241523570.5666@wojtek.tensor.gdynia.pl> References: <CACpH0Mf6sNb8JOsTzC%2BWSfQRB62%2BZn7VtzEnihEKmEV2aO2p%2Bw@mail.gmail.com> <alpine.BSF.2.00.1301211201570.9447@wojtek.tensor.gdynia.pl> <20130122073641.GH30633@server.rulingia.com> <alpine.BSF.2.00.1301232121430.1659@wojtek.tensor.gdynia.pl> <51013345.8010701@platinum.linux.pl> <alpine.BSF.2.00.1301241523570.5666@wojtek.tensor.gdynia.pl>
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On Jan 24, 2013, at 4:24 PM, Wojciech Puchar = <wojtek@wojtek.tensor.gdynia.pl> wrote: >>=20 > Except it is on paper reliability. This "on paper" reliability saved my ass numerous times. For example I had one home NAS server machine with flaky SATA controller = that would not detect one of the four drives from time to time on = reboot. This made my pool degraded several times, and even rebooting with let's = say disk4 failed to a situation that disk3 is failed did not corrupt any = data. I don't think this is possible with any other open source FS, let alone = hardware RAID that would drop the whole array because of this. I have never ever personally lost any data on ZFS. Yes, the performance = is another topic, and you must know what you are doing, and what is your usage pattern, but from reliability standpoint, to me ZFS looks more = durable than anything else. P.S.: My home NAS is running freebsd-CURRENT with ZFS from the first = version available. Several drives died, two times the pool was expanded by replacing all drives one by one and resilvered, no single byte lost.
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