http://www.freebsdwiki.net/index.php?action=history&feed=atom&title=ZFS%2C_creating_datasets_for_the_FreeBSD_system 2026-04-10T11:25:29Z Revision history for this page on the wiki MediaWiki 1.18.0 http://www.freebsdwiki.net/index.php?title=ZFS,_creating_datasets_for_the_FreeBSD_system&diff=11718&oldid=prev 2010-05-15T14:55:26Z

<p>Created page with &#039;Some admins may wish to create a customized set of datasets tailored to the FreeBSD system itself; ie configuring compression for the ports directory (but not distfiles!), turnin…&#039;</p> <p><b>New page</b></p><div>Some admins may wish to create a customized set of datasets tailored to the FreeBSD system itself; ie configuring compression for the ports directory (but not distfiles!), turning execution off on directories like /var/db, etc.<br /> <br /> Be warned that, should you choose to do this, you will create additional complexity you must maintain and wade through when monitoring the system - for one relatively trivial example, you will have an additional ''sixteen'' filesystems showing up in the output of '''df'''!<br /> <br /> Fixit# zfs create -o compression=on -o exec=on -o setuid=off zroot/tmp<br /> Fixit# chmod 1777 /zroot/tmp<br /> <br /> Fixit# zfs create zroot/usr<br /> Fixit# zfs create zroot/usr/home<br /> Fixit# zfs create -o compression=lzjb -o setuid=off zroot/usr/ports <br /> Fixit# zfs create -o compression=off -o exec=off -o setuid=off zroot/usr/ports/distfiles<br /> Fixit# zfs create -o compression=off -o exec=off -o setuid=off zroot/usr/ports/packages<br /> <br /> Note:<br /> If you use nullfs or nfs to mount /usr/ports to different locations/servers, you will also need to nullfs/nfs mount /usr/ports/distfiles and/or /usr/ports/packages.<br /> <br /> Fixit# zfs create zroot/var<br /> Fixit# zfs create -o exec=off -o setuid=off zroot/var/empty<br /> Fixit# zfs create -o exec=off -o setuid=off zroot/var/db<br /> Fixit# zfs create -o exec=off -o setuid=off zroot/var/run<br /> Fixit# zfs create -o compression=lzjb -o exec=off -o setuid=off zroot/usr/src<br /> Fixit# zfs create -o compression=lzjb -o exec=off -o setuid=off zroot/var/crash<br /> Fixit# zfs create -o compression=lzjb -o exec=on -o setuid=off zroot/var/db/pkg<br /> Fixit# zfs create -o compression=lzjb -o exec=off -o setuid=off zroot/var/log<br /> Fixit# zfs create -o compression=gzip -o exec=off -o setuid=off zroot/var/mail<br /> Fixit# zfs create -o compression=lzjb -o exec=on -o setuid=off zroot/var/tmp<br /> Fixit# chmod 1777 /zroot/var/tmp<br /> <br /> Notes:<br /> Compression may be set to on, off, lzjb, gzip, gzip-N (where N is an integer from 1 (fastest) to 9 (best compresion ratio. gzip is equivalent to gzip-6).<br /> Compression will cause some latency when accessing files on the ZFS filesystems. Use compression on ZFS filesystems which will not be accessed that often. <br /> <br /> [[Category:ZFS]]</div>

Jimbo