Date: Mon, 19 Feb 2007 20:40:37 +0100 From: Volker <volker@vwsoft.com> To: freebsd-stable@freebsd.org Subject: getting garbage faster using FreeBSD? Message-ID: <45D9FD35.6040702@vwsoft.com>
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Hi! For my dentist I'm currently in the process of destroying some tape cartridges (SLR7) and also two hard disks (147G SCSI). As I started for the tapes, I've used dd to fill the tape with random garbage. Just a simple `dd if=/dev/random of=/dev/nsa0'. The tape sits there since 48 hours writing a block of data every other minute and still didn't fill up the tape completely. The system this is running on is a P-4 3GHz machine using FreeSBIE 2.0 (6.2-RELEASE based). I suspect this to be a slow /dev/random. Is there any chance to speed up /dev/random? Would a hifn accelerator card help here to get FreeBSD produce garbage faster? As there is medical data on all media I really need garbage (/dev/zero wouldn't be enough for data security as this might get recovered). Thx, Volker
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