Date: Sat, 17 Nov 2012 13:07:55 -0700 From: Gary Aitken <freebsd@dreamchaser.org> To: Warren Block <wblock@wonkity.com> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: 9.0 crash, ssd or filesystem problem? Message-ID: <50A7EE9B.4070003@dreamchaser.org> In-Reply-To: <alpine.BSF.2.00.1211162119450.2013@wonkity.com> References: <50A53FF1.7050806@dreamchaser.org> <alpine.BSF.2.00.1211151550050.66706@wonkity.com> <50A602AB.2060307@dreamchaser.org> <alpine.BSF.2.00.1211160746190.74281@wonkity.com> <50A66659.5040406@dreamchaser.org> <alpine.BSF.2.00.1211161142300.76158@wonkity.com> <50A6FFC0.3050902@dreamchaser.org> <alpine.BSF.2.00.1211162119450.2013@wonkity.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 11/16/12 21:38, Warren Block wrote: > On Fri, 16 Nov 2012, Gary Aitken wrote: > >> On 11/16/12 12:10, Warren Block wrote: >> >>> Additional SSD suggestions: when creating partitions, leave out the swap >>> partition. If you have lots of memory, leave out the /tmp partition. Add >>> that extra space to the /usr partition. >>> >>> Format the UFS filesystems with -Ut, for soft updates and TRIM support. >>> (Make sure your SSD supports TRIM, almost all do.) (I don't use soft >>> updates journaling.) >>> >>> Use dd(1) to make a zero-filled file on /usr somewhere, say /usr/swap. >>> Make it the size you want swap to be, and do not make it a sparse file. >>> Tell the system to use the swapfile in /etc/rc.conf: >>> >>> swapfile="/usr/swap" >>> >>> Use tmpfs for /tmp in /etc/fstab: >>> >>> tmpfs /tmp tmpfs rw,mode=01777 0 0 When using the above in /etc/fstab to establish a tmp file, how does the size of /tmp get established? Is it limited only by the available swap, or is it possible to put an upper bound on it that is smaller than swap? e.g. if I built it manually: mdconfig -a -t swap -s 1g -u 1 newfs -U /dev/md1 mount /dev/md1 /tmp chmod 1777 /tmp wouldn't it be limited to 1g of swap space? Gary
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?50A7EE9B.4070003>