From owner-freebsd-current Sun Aug 25 13:26:56 1996 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id NAA02827 for current-outgoing; Sun, 25 Aug 1996 13:26:56 -0700 (PDT) Received: from who.cdrom.com (who.cdrom.com [204.216.27.3]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id NAA02766 for ; Sun, 25 Aug 1996 13:26:46 -0700 (PDT) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by who.cdrom.com (8.7.5/8.6.11) with SMTP id GAA24889 for ; Sun, 25 Aug 1996 06:57:14 -0700 (PDT) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id LAA11611 for ; Sun, 25 Aug 1996 11:51:42 +0200 Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id LAA11798 for freebsd-current@FreeBSD.org; Sun, 25 Aug 1996 11:51:41 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.7.5/8.6.9) id LAA15473 for freebsd-current@FreeBSD.org; Sun, 25 Aug 1996 11:35:46 +0200 (MET DST) From: J Wunsch Message-Id: <199608250935.LAA15473@uriah.heep.sax.de> Subject: Re: Help on block size in tar To: freebsd-current@FreeBSD.ORG (FreeBSD-current users) Date: Sun, 25 Aug 1996 11:35:46 +0200 (MET DST) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199608241406.KAA03455@james.freenet.hamilton.on.ca> from "hoek@freenet.hamilton.on.ca" at "Aug 24, 96 10:06:40 am" X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E X-Mailer: ELM [version 2.4ME+ PL17 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk As hoek@freenet.hamilton.on.ca wrote: > > Anyway, i think the default blocksize is only 512 bytes. This should > > also pass any variable-length driver. > > Are you sure? I quote the tar manpage (which, being GNU tar isn't the > official source of information regarding tar, I suppose). > > "and 20 is the default block size" You're right, gtar also defaults to 10 KB blocks when used on a local tape, i just verified. However, i seem to remember that adding a ``-B 20'' gave me a substantial speed improvement when using it on a remote tape (``-f host:/dev/rtape''). -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)