1.\" Copyright (c) 1993, 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" %sccs.include.redist.roff% 5.\" 6.\" @(#)mount_lfs.8 8.5 (Berkeley) 03/30/94 7.\" 8.Dd "" 9.Dt MOUNT_LFS 8 10.Os BSD 4.4 11.Sh NAME 12.Nm mount_lfs 13.Nd mount a log-structured file system 14.Sh SYNOPSIS 15.Nm mount_lfs 16.Op Fl dns 17.Op Fl o Ar options 18.Ar special 19.Ar node 20.Sh DESCRIPTION 21The 22.Nm mount_lfs 23command attaches a log-structured file system 24.Ar special 25device on to the file system tree at the point 26.Ar node . 27In addition, the 28.Xr lfs_cleanerd 8 29utility is invoked to clean the file system periodically. 30.Pp 31This command is normally executed by 32.Xr mount 8 33at boot time. 34.Pp 35The options are as follows: 36.Bl -tag -width Ds 37.It Fl d 38Run 39.Xr lfs_cleanerd 8 40in debug mode. 41.It Fl o 42Options are specified with a 43.Fl o 44flag followed by a comma separated string of options. 45See the 46.Xr mount 8 47man page for possible options and their meanings. 48.It Fl n 49Don't start 50.Xr lfs_cleanerd 8 51on the file system. 52.It Fl s 53Cause 54.Xr lfs_cleanerd 8 55to read data in small chunks when cleaning the file system. 56.El 57.Sh SEE ALSO 58.Xr mount 2 , 59.Xr unmount 2 , 60.Xr fstab 5 , 61.Xr lfs_cleanerd 8 , 62.Xr mount 8 63.sp 64.Rs 65.%A Ousterhout and Douglis 66.%D 1989 67.%T "Beating the I/O Bottleneck: A Case for Log-structured File Systems" 68.%J "Operating Systems Review" 69.%V Vol. 23 70.%N No. 1 71.%P pp. 11-27 72.%O "also available as Technical Report UCB/CSD 88/467" 73.Re 74.Rs 75.%A Rosenblum and Ousterhout 76.%D 1991 77.%T "The Design and Implementation of a Log-Structured File System" 78.%J "ACM SIGOPS Operating Systems Review" 79.%V Vol. 25 80.%N No. 5 81.Re 82.Rs 83.%A Seltzer 84.%D 1992 85.%T "File System Performance and Transaction Support" 86.%B "PhD Thesis, University of California, Berkeley" 87.%O "also available as Technical Report UCB/ERL M92" 88.Re 89.Rs 90.%A Seltzer, Bostic, McKusick and Staelin 91.%D 1993 92.%T "An Implementation of a Log-Structured File System for UNIX" 93.%J "Proc. of the Winter 1993 USENIX Conf." 94.%P pp. 315-331 95.Re 96.Sh HISTORY 97The 98.Nm mount_lfs 99function first appeared in 4.4BSD. 100