Creating create mirrored disk files systems using mkfs command Post: 302084589

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Top Forums UNIX for Dummies Questions & Answers Creating create mirrored disk files systems using mkfs command Post 302084589 by GLJ@USC on Friday 11th of August 2006 01:48:43 PM

08-11-2006

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Creating a new disksuite filessystem

Quote:

Originally Posted by RTM

It might be helpful to have the OS and version - one can only assume this is Solaris due to the md device (normally that's a Disksuite device). Posting the version of Disksuite would also be helpful.

mkfs is not normally used - as stated in the mkfs man page. It also matters if the device already exist and you are trying to make it larger (you can make it smaller but there is no "quick" way to do that).

Another consideration is if this is the root partition you are working with (or swap partition). There are set procedures to expand a root/swap partiton - they have to be followed to insure a viable system. You may want to check out info on sunsolve.sun.com (if you have an account) or
Disksuite info on Docs.sun.com

RTM ,
Thank you for responding. The OS I'm using is Solaris 9 which as you probably know comes with disksuite (now known as SVM). Basically I need to know the command lines to make this:

Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 998M 98M 840M 11% /
/dev/md/dsk/d3 4.9G 1.1G 3.8G 23% /usr
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
/dev/md/dsk/d4 9.9G 319M 9.5G 4% /var
swap 4.8G 24K 4.8G 1% /var/run
swap 4.8G 16K 4.8G 1% /tmp
nfs-fs1,nfs-fs2:/export/usc/sparc.sunos.5
155G 122G 30G 80% /auto/usc

Look like this(/dev/md/dsk/d40 /oracle being the new filesystem):

Filesystem size used avail capacity Mounted on
/dev/md/dsk/d0 943M 91M 796M 11% /
/dev/md/dsk/d2 3.9G 1.2G 2.7G 31% /usr
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
/dev/md/dsk/d3 4.8G 282M 4.5G 6% /var
swap 2.3G 32K 2.3G 1% /var/run
swap 2.3G 48K 2.3G 1% /tmp
/dev/md/dsk/d40 3.9G 1.5G 2.4G 40% /oracle

With all the various resources i've read(thanks for pointing me to Sun's Disksuite webpages) I'm still a little stumped on what specific commads I need to run to make this happen. Thanks in advance.

GLJ@USC

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LEARN ABOUT SUNOS

mkdevmaps

mkdevmaps(1M)						  System Administration Commands					     mkdevmaps(1M)

NAME

       mkdevmaps - make device_maps entries

SYNOPSIS

       /usr/sbin/mkdevmaps

DESCRIPTION

       The  mkdevmaps  command	writes	to standard out a set of device_maps(4) entries describing the system's frame buffer, audio, and removable
       media devices.

       The mkdevmaps command is used by the init.d(4) scripts to create or update the /etc/security/device_maps file.

       Entries are generated based on the device special files found in /dev. For the different  categories  of  devices,  the	mkdevmaps  command
       checks for the following files under /dev:

       audio	       /dev/audio, /dev/audioctl, /dev/sound/...
       tape	       /dev/rst*, /dev/nrst*, /dev/rmt/...
       floppy	       /dev/diskette, /dev/fd*, /dev/rdiskette, /dev/rfd*
       removable disk  /dev/dsk/c0t?d0s?, /dev/rdsk/c0t?d0s?
       frame buffer    /dev/fb

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Obsolete			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       allocate(1), bsmconv(1M), attributes(5)

NOTES

       mkdevmaps might not be supported in a future release of the Solaris operating system.

SunOS 5.10							    8 Oct 2003							     mkdevmaps(1M)

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