Date: Mon, 22 Aug 2005 22:13:07 +0200 From: "Sebastian Pahlke" <sp.ibm@gmx.de> To: <freebsd-questions@freebsd.org> Subject: dd is so slow on my SCSI disc Message-ID: <007301c5a755$ea1ee840$6701a8c0@monster>
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Hi all, I'm trying to "clean" a disc before selling them: dd if=/dev/zero of=/dev/da0 Do I make something wrong because the transfer rate is only 60932 bytes/sec??? These are 60 kbytes/sec, slower than my internet connection!!! :( I tried to increase the block size, with bs=32768 I get 3416071 bytes/sec. But this is still very poor. The system is a PIII 800MHz and a SCSI-3 disc in single user mode booted from FreeBSD release 5.4 live-cd. Any ideas how to analyze this? Thanks in advance! greetings, Sebastian Pahlke
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