Date: Sun, 25 Aug 2002 08:04:02 +0300 From: Giorgos Keramidas <keramida@FreeBSD.org> To: Peter Leftwich <Hostmaster@Video2Video.Com> Cc: FreeBSD LIST <FreeBSD-Questions@FreeBSD.org> Subject: Re: dd if=/dev/zero of=/dev/ad1 Message-ID: <20020825050401.GC74424@hades.hell.gr> In-Reply-To: <20020825005742.W71244-100000@earl-grey.cloud9.net> References: <20020825005742.W71244-100000@earl-grey.cloud9.net>
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On 2002-08-25 00:59 +0000, Peter Leftwich wrote: > `dd if=/dev/zero of=/dev/ad1` > > Is this the correct command line to totally wipe clean (to all zeroes, e.g. > factory new) a primary slave HDD? Always learning, True. You might want to use a large block size to speed operations if possible (less I/O calls from dd(1) to the kernel, and more freedom to the kernel drivers to arrange in which order data is zeroed). Try at least 32 KB. dd bs=32768 if=/dev/zero of=/dev/ad1 - Giorgos To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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