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Maintaining Mirrored Systems CentreVu CMS Release 3 Version 8 Disk-Mirrored Systems
Adding new disks to a standard mirrored system 64
6. Reboot the system and log in as the root user:
7. Partition the new disks by following the instructions in “Partitioning
disks with the format command” on page 76.
8. Check disk space by entering a
df -k
command. For example:
Record the
avail
figure for
/cms
here: ______________________
9. Create new versions of the setup files by entering the following
commands:
<newdisk1>
and
<newdisk2>
represent the device names of the
disk drives added (remember that in a mirrored system, disk drives
are always added in pairs). For example:
10. Load the file
/etc/opt/SUNWmd/md.tab.new
into an editor and make
certain it names all
of your disks, including the ones you just added.
(For an example of the md.tab file format, see “Examples of valid
system files” on page 79.)
11. Save a copy of the existing
md.tab
file by entering the following
command:
12. Replace the existing
md.tab
file with the one you created in Step 10:
ok boot -r
...
<hostname>
login: root
password:
<password>
...
#
#df-k
Filesystem kbytes used avail capacity Mounted on
/dev/md/dsk/d13 772038 538683 156155 78% /
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
/dev/md/dsk/d21 3059955 192497 2867458 7% /cms
#
#cd/olds
# olds -mirrored -mk_files
<newdisk1> <newdisk2>
# olds -mirrored -mk_files c0t10d0 c0t11d0
# cp /etc/opt/SUNWmd/md.tab /etc/opt/SUNWmd/md.tab.mirror
# cp /etc/opt/SUNWmd/md.tab.new /etc/opt/SUNWmd/md.tab