RAID on Red Hat Linux 7.2 Post: 302105022

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Operating Systems Linux Red Hat RAID on Red Hat Linux 7.2 Post 302105022 by BOFH on Tuesday 30th of January 2007 08:40:17 AM

01-30-2007

Registered User

I'm using software RAID (mirroring) on my Linux box. If I run df, I see this:

Code:

$ df -k
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md0               5036160    111016   4669320   3% /
df: `/proc/bus/usb': Permission denied
/dev/hda9              1296568     37360   1193344   4% /boot
/dev/md1              18136968   1455148  16681820   9% /home
/dev/md2              40313848  12277432  25988540  33% /usr
/dev/md3              10072680    764916   8796100   9% /var

And my vstab output looks like this:

Code:

none /dev/pts devpts mode=0620 0 0
/dev/md1 /home ext3 defaults 1 2
/dev/hdb /mnt/cdrom auto user,iocharset=iso8859-1,codepage=850,noauto,ro,exec 0 0
/dev/scd0 /mnt/cdrom2 auto user,iocharset=iso8859-1,codepage=850,noauto,ro,exec 0 0
none /proc proc defaults 0 0
/dev/md2 /usr ext3 defaults 1 2
/dev/md3 /var ext3 defaults 1 2
/dev/hda5 swap swap defaults 0 0
/dev/hdc5 swap swap defaults 0 0

The /dev/mdn are the "Metadevices".

It's been a while since I set mine up but from your fstab output, I'd say you were not running a software RAID.

Carl

BOFH

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fdformat

FDFORMAT(8)						     Linux Programmer's Manual						       FDFORMAT(8)

NAME

       fdformat - Low-level formats a floppy disk

SYNOPSIS

       fdformat [-n] device

DESCRIPTION

       fdformat  does  a  low  level  format on a floppy disk.	device is usually one of the following (for floppy devices, the major = 2, and the
       minor is shown for informational purposes only):

	      /dev/fd0d360  (minor = 4)
	      /dev/fd0h1200 (minor = 8)
	      /dev/fd0D360  (minor = 12)
	      /dev/fd0H360  (minor = 12)
	      /dev/fd0D720  (minor = 16)
	      /dev/fd0H720  (minor = 16)
	      /dev/fd0h360  (minor = 20)
	      /dev/fd0h720  (minor = 24)
	      /dev/fd0H1440 (minor = 28)

	      /dev/fd1d360  (minor = 5)
	      /dev/fd1h1200 (minor = 9)
	      /dev/fd1D360  (minor = 13)
	      /dev/fd1H360  (minor = 13)
	      /dev/fd1D720  (minor = 17)
	      /dev/fd1H720  (minor = 17)
	      /dev/fd1h360  (minor = 21)
	      /dev/fd1h720  (minor = 25)
	      /dev/fd1H1440 (minor = 29)

       The generic floppy devices, /dev/fd0 and /dev/fd1, will fail to work with fdformat when a non-standard format is being used, or if the for-
       mat has not been autodetected earlier.  In this case, use setfdprm(8) to load the disk parameters.

OPTIONS

       -n     No verify.  This option will disable the verification that is performed after the format.

SEE ALSO

       fd(4), setfdprm(8), mkfs(8), emkfs(8)

AUTHOR

       Werner Almesberger (almesber@nessie.cs.id.ethz.ch)

AVAILABILITY

       The fdformat command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

Linux 0.99							  1 February 1993						       FDFORMAT(8)