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space of zones need changes

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Operating Systems Solaris space of zones need changes
# 1  
Old 08-22-2008
space of zones need changes
On one of our servers we have to zones set up on separate slices.

zone1 is on slice /dev/dsk/c1t0d0s0

zone2 is on slice /dev/dsk/c1t2d0s6

zone2 has a lot of space and zone1 is about to crash because there is
no more space.

directory is /export/zone1 and /export/zone2

How would I move space from zone2 to zone1, about 15G to move?Smilie

Code:
# uname -a
SunOS server5 5.10 Generic_118833-03 sun4v sparc SUNW,Sun-Fire-T200

# cat /etc/release
                       Solaris 10 1/06 s10s_u1wos_19a SPARC
           Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.
                        Use is subject to license terms.
                           Assembled 07 December 2005

Code:
# df -h
Filesystem             size   used  avail capacity  Mounted on
/dev/dsk/c1t0d0s0       54G    52G   1.8G    97%    /
/devices                 0K     0K     0K     0%    /devices
ctfs                     0K     0K     0K     0%    /system/contract
proc                     0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
swap                   2.2G   1.0M   2.2G     1%    /etc/svc/volatile
objfs                    0K     0K     0K     0%    /system/object
/platform/sun4v/lib/libc_psr/libc_psr_hwcap1.so.1
                        54G    52G   1.8G    97%    /platform/sun4v/lib/libc_psr.so.1
/platform/sun4v/lib/sparcv9/libc_psr/libc_psr_hwcap1.so.1
                        54G    52G   1.8G    97%    /platform/sun4v/lib/sparcv9/libc_psr.so.1
fd                       0K     0K     0K     0%    /dev/fd
/dev/dsk/c1t0d0s1      4.9G   227M   4.7G     5%    /var
swap                   2.2G    25M   2.2G     2%    /tmp
swap                   2.2G    80K   2.2G     1%    /var/run
/dev/dsk/c1t2d0s6       67G    46G    20G    70%    /export/zones2

# 2  
Old 08-22-2008
well.. there are a few things here. you can't "grow" the root slice. this is a limitation of growfs. is zone1 a global or non-global zone? please issue `zoneadm list` and post output.

one way you can add more space is use zonecfg to add another filesystem to this zone. push all your data to this newly added fs. if you don't have any space on the disk left, you will have to shrink other slices. you will lose all data so backup what you need. or you can simply add another disk.
# 3  
Old 08-23-2008
Code:
# zoneadm list -v
  ID NAME             STATUS         PATH
   0 global           running        /
   3 zone1           running        /export/zones/zone1
   4 zone2           running        /export/zones2/zone2

don't really want to add a disk, only if I really have too.

Actually zone1 is on disk c1t0d0 and zone2 is on disk c1t2d0 and
they are mirrored with raidctl.

What if I create a dir in global zone in zone2. Then access it
from zone1, like following?

Code:
global#mkdir /export/zones2/zone2/root/zone1
global#zonecfg -z zone1
zonecfg:app>add fs
zonecfg:app:fs>set dir=/new/space
zonecfg:app:fs>set special=/export/zones2/zone2/root/zone1
zonecfg:app:fs>set type=lofs
zonecfg:app:fs>end
zonecfg:app>commit
zonecfg:app>exit
global#

# 4  
Old 08-24-2008
It worked in a test environment.

Just need to

Code:
zoneadm -z zone1 reboot

# 5  
Old 08-24-2008
You could have just move the zone1 root altogether from the / filesystem to the /export/zones2 one then have the zone setting adjusted.

Of course, this should be done with zone1 halted.
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