| ccdconfig.8 (6d25ea1fa6800529f0d513a937d1e632b61909a3) | ccdconfig.8 (05527a9a28d6e1c79ea5dbf4d76cfd57f86ece03) |
|---|---|
| 1.\" $NetBSD: ccdconfig.8,v 1.1.2.1 1995/11/11 02:43:33 thorpej Exp $ 2.\" 3.\" Copyright (c) 1995 Jason R. Thorpe. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 89 unchanged lines hidden (view full) --- 98A ccd is described on the command line and in the ccd configuration 99file by the name of the ccd, the interleave factor, the ccd configuration 100flags, and a list of one or more devices. 101The flags may be represented 102as a decimal number, a hexadecimal number, a comma-separated list 103of strings, or the word 104.Dq none . 105The flags are as follows: | 1.\" $NetBSD: ccdconfig.8,v 1.1.2.1 1995/11/11 02:43:33 thorpej Exp $ 2.\" 3.\" Copyright (c) 1995 Jason R. Thorpe. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: --- 89 unchanged lines hidden (view full) --- 98A ccd is described on the command line and in the ccd configuration 99file by the name of the ccd, the interleave factor, the ccd configuration 100flags, and a list of one or more devices. 101The flags may be represented 102as a decimal number, a hexadecimal number, a comma-separated list 103of strings, or the word 104.Dq none . 105The flags are as follows: |
| 106.Bd -unfilled -offset indent | 106.Bd -literal -offset indent |
| 107CCDF_UNIFORM 0x02 Use uniform interleave 108CCDF_MIRROR 0x04 Support mirroring 109.Ed 110.Pp 111The format in the 112configuration file appears exactly as if it were entered on the command line. 113Note that on the command line and in the configuration file, the 114.Pa flags 115argument is optional. | 107CCDF_UNIFORM 0x02 Use uniform interleave 108CCDF_MIRROR 0x04 Support mirroring 109.Ed 110.Pp 111The format in the 112configuration file appears exactly as if it were entered on the command line. 113Note that on the command line and in the configuration file, the 114.Pa flags 115argument is optional. |
| 116.Bd -unfilled -offset indent | 116.Bd -literal -offset indent |
| 117# 118# /etc/ccd.conf 119# Configuration file for concatenated disk devices 120# | 117# 118# /etc/ccd.conf 119# Configuration file for concatenated disk devices 120# |
| 121.Pp | 121 |
| 122# ccd ileave flags component devices 123ccd0 16 none /dev/da2s1 /dev/da3s1 124.Ed 125.Pp 126The component devices need to name partitions of type 127.Li FS_BSDFFS 128(or 129.Dq 4.2BSD --- 15 unchanged lines hidden (view full) --- 145The second example is an example of a complex stripe/mirror combination. 146It reads as a two disk stripe of da4 and da5 which is mirrored 147to a two disk stripe of da6 and da7. 148The last example is a simple 149mirror. 150The 2nd slice of /dev/da8 is mirrored with the 3rd slice of /dev/da9 151and assigned to ccd0. 152.Pp | 122# ccd ileave flags component devices 123ccd0 16 none /dev/da2s1 /dev/da3s1 124.Ed 125.Pp 126The component devices need to name partitions of type 127.Li FS_BSDFFS 128(or 129.Dq 4.2BSD --- 15 unchanged lines hidden (view full) --- 145The second example is an example of a complex stripe/mirror combination. 146It reads as a two disk stripe of da4 and da5 which is mirrored 147to a two disk stripe of da6 and da7. 148The last example is a simple 149mirror. 150The 2nd slice of /dev/da8 is mirrored with the 3rd slice of /dev/da9 151and assigned to ccd0. 152.Pp |
| 153.Bd -unfilled -offset | 153.Bd -literal |
| 154# ccdconfig ccd0 64 none /dev/da0s1 /dev/da1s1 /dev/da2s1 /dev/da3s1 155# ccdconfig ccd0 128 CCDF_MIRROR /dev/da4 /dev/da5 /dev/da6 /dev/da7 156# ccdconfig ccd0 128 CCDF_MIRROR /dev/da8s2 /dev/da9s3 157.Ed 158.Pp 159When you create a new ccd disk you generally want to 160.Xr fdisk 8 161and --- 9 unchanged lines hidden (view full) --- 171However, if you intend to 172.Xr dd 1 173to or from a ccd partition it is usually a good idea to construct the 174partition such that it does not overlap the label area. 175For example, if 176you have A ccd disk with 10000 sectors you might create a 'd' partition 177with offset 16 and size 9984. 178.Pp | 154# ccdconfig ccd0 64 none /dev/da0s1 /dev/da1s1 /dev/da2s1 /dev/da3s1 155# ccdconfig ccd0 128 CCDF_MIRROR /dev/da4 /dev/da5 /dev/da6 /dev/da7 156# ccdconfig ccd0 128 CCDF_MIRROR /dev/da8s2 /dev/da9s3 157.Ed 158.Pp 159When you create a new ccd disk you generally want to 160.Xr fdisk 8 161and --- 9 unchanged lines hidden (view full) --- 171However, if you intend to 172.Xr dd 1 173to or from a ccd partition it is usually a good idea to construct the 174partition such that it does not overlap the label area. 175For example, if 176you have A ccd disk with 10000 sectors you might create a 'd' partition 177with offset 16 and size 9984. 178.Pp |
| 179.Bd -unfilled -offset | 179.Bd -literal |
| 180# disklabel ccd0 > /tmp/disklabel.ccd0 181# disklabel -Rr ccd0 /tmp/disklabel.ccd0 182# disklabel -e ccd0 183.Ed 184.Pp 185The disklabeling of a ccd disk is usually a one-time affair. 186If you reboot the machine and reconfigure the ccd disk, 187the disklabel you --- 51 unchanged lines hidden --- | 180# disklabel ccd0 > /tmp/disklabel.ccd0 181# disklabel -Rr ccd0 /tmp/disklabel.ccd0 182# disklabel -e ccd0 183.Ed 184.Pp 185The disklabeling of a ccd disk is usually a one-time affair. 186If you reboot the machine and reconfigure the ccd disk, 187the disklabel you --- 51 unchanged lines hidden --- |