Date: Sun, 26 May 2013 11:36:37 +0200 From: Eduardo Morras <emorrasg@yahoo.es> To: freebsd-questions@freebsd.org Cc: "M. V." <bored_to_death85@yahoo.com> Subject: Re: "swap" partition leads to instability? Message-ID: <20130526113637.cf6fdfd5b0cb7f0413fc5f8d@yahoo.es> In-Reply-To: <1369558712.96152.YahooMailNeo@web165006.mail.bf1.yahoo.com> References: <1369558712.96152.YahooMailNeo@web165006.mail.bf1.yahoo.com>
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On Sun, 26 May 2013 01:58:32 -0700 (PDT) "M. V." <bored_to_death85@yahoo.com> wrote: > hi everyone, > > I have a 24/7 network server/gateway with FreeBSD-8.2 on a SSD drive. it's partitioned as normal (/ , /tmp, /var , /usr and swap) for a long time now. But recently I heard from a FreeBSD expert that I shouldn't have swap partition for my server, and having swap partition could make my server unstable. this was so strange for me, and I searched a lot but couldn't find a reason for this claim. > > > so my question is simple: > - could having a "swap" partition, be a bad thing for my FreeBSD server? and if so, why and in what conditions? I never had a problem with swap partitions, but perhaps the FreeBSD expert may refer to one of this three issues I can think about problems with swap, none of them are unstability issues: a) Swap partitions may store info from previous boot, you can use swap encryption for that. b) When using swap files (mounting a swap in a file), at shutdown sometimes there's a race condition and swap is unmounted before it's empty. c) If your system needs to use swap, network apps may show/throw timeouts when swap i/o is heavy. Sometimes b) kicks me but it's my fault because i don't shutdown process properly. > > Cheers! L --- --- Eduardo Morras <emorrasg@yahoo.es>
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