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Disk space management on Solaris

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Operating Systems Solaris Disk space management on Solaris
# 1  
Old 11-25-2006
Disk space management on Solaris
Hi,

I'm using sun solaris. Using df -h I have the following:

Filesystem size used avail capacity Mounted on
/dev/md/dsk/d2 12G 7.1G 4.6G 61% /
/proc 0K 0K 0K 0% /proc
mnttab 0K 0K 0K 0% /etc/mnttab
fd 0K 0K 0K 0% /dev/fd
swap 13G 96K 13G 1% /var/run
dmpfs 13G 0K 13G 0% /dev/vx/dmp
dmpfs 13G 0K 13G 0% /dev/vx/rdmp
swap 13G 1016K 13G 1% /tmp
/dev/md/dsk/d8 44G 7.9G 35G 19% /space
/dev/vx/dsk/localdg/cr_vol
3.0G 1.1G 1.8G 40% /oracrs
/dev/vx/dsk/localdg/or_vol
10G 9.5G 538M 95% /oracle
/dev/null 0K 0K 0K 0% /dev/odm
/dev/vx/dsk/crs_oradg/crs_vol
500M 17M 453M 4% /ora_crs
/dev/vx/dsk/rac_dg/rac_vol2
39G 11G 26G 30% /rac_archive
/dev/vx/dsk/rac_dg/rac_vol1
98G 72G 24G 75% /rac_ts



Well I don't know exactly how filesystems are organized on UNIX. But, I need to increase the one for /oracle. I searched the net a lot but couldn't find something suitable.
Can anyone help me with this and if possible explain the filesystems which I have for me?
# 2  
Old 11-25-2006
Since your using veritas, provided you have some free disk space you can use vxassist to grow the /oracle filesystem, on the fly and without an outage.

Have a look here:
http://www.adminschoice.com/docs/vxa...g%20a%20Volume
Tornado
# 3  
Old 11-25-2006
Or if you prefer a GUI, use vmsa
Tornado
# 4  
Old 11-25-2006
Your vfstab output is a bit hard to read the way it is posted.
To make it easier use the code tags.
Code:
Filesystem             size   used  avail capacity  Mounted on
/dev/md/dsk/d2          12G   7.1G   4.6G    61%    /
/proc                    0K     0K     0K     0%    /proc
mnttab                   0K     0K     0K     0%    /etc/mnttab
fd                       0K     0K     0K     0%    /dev/fd
swap                    13G    96K    13G     1%    /var/run
dmpfs                   13G     0K    13G     0%    /dev/vx/dmp
dmpfs                   13G     0K    13G     0%    /dev/vx/rdmp
swap                    13G  1016K    13G     1%    /tmp
/dev/md/dsk/d8          44G   7.9G    35G    19%    /space
/dev/vx/dsk/localdg/cr_vol
                       3.0G   1.1G   1.8G    40%    /oracrs
/dev/vx/dsk/localdg/or_vol
                        10G   9.5G   538M    95%    /oracle
/dev/null                0K     0K     0K     0%    /dev/odm
/dev/vx/dsk/crs_oradg/crs_vol
                       500M    17M   453M     4%    /ora_crs
/dev/vx/dsk/rac_dg/rac_vol2
                        39G    11G    26G    30%    /rac_archive
/dev/vx/dsk/rac_dg/rac_vol1
                        98G    72G    24G    75%    /rac_ts

Looking at this tells me that you are using disksuite on your boot disk
Code:
Filesystem             size   used  avail capacity  Mounted on
/dev/md/dsk/d2          12G   7.1G   4.6G    61%    /
/dev/md/dsk/d8          44G   7.9G    35G    19%    /space

and veritas with Dynamic Multipathing(DMP) on your data disks.
Code:
Filesystem             size   used  avail capacity  Mounted on
dmpfs                   13G     0K    13G     0%    /dev/vx/dmp
dmpfs                   13G     0K    13G     0%    /dev/vx/rdmp
/dev/vx/dsk/localdg/cr_vol
                       3.0G   1.1G   1.8G    40%    /oracrs
/dev/vx/dsk/localdg/or_vol
                        10G   9.5G   538M    95%    /oracle
/dev/vx/dsk/crs_oradg/crs_vol
                       500M    17M   453M     4%    /ora_crs
/dev/vx/dsk/rac_dg/rac_vol2
                        39G    11G    26G    30%    /rac_archive
/dev/vx/dsk/rac_dg/rac_vol1
                        98G    72G    24G    75%    /rac_ts

You have 3 veritas disk groups:
localdg
crs_oradg
rac_dg

You can get more info about these diskgroups by running
Code:
vxprint -ht -g localdg
vxprint -ht -g crs_oradg
vxprint -ht -g rac_dg

you might also want to look at your disks
Code:
vxdisk list

Why are you mounting /dev/null , Is this an Oracle RAC thing ?
Also
Your root metadevice is d2.
You can use what ever you like for your metadevices, but it's common practice to use the disk slice number for your metadevices, so d0 for your root metadevice and d1 for your swap devices. If you also have a seperate slice for /var and /opt then you would use d3 for /var and d4 for /opt.
The metadb is normally put on slice 7.
You can see what slices are used by running metastat -p
ie:
Code:
$ metastat -p
d0 -m d10 d20 1
d10 1 1 c1t0d0s0
d20 1 1 c1t1d0s0
d1 -m d11 d21 1
d11 1 1 c1t0d0s1
d21 1 1 c1t1d0s1
d3 -m d13 d23 1
d13 1 1 c1t0d0s3
d23 1 1 c1t1d0s3
d4 -m d14 d24 1
d14 1 1 c1t0d0s4
d24 1 1 c1t1d0s4
$
$ df -kl
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/md/dsk/d0       4138926 1434624 2662913    36%    /
/proc                      0       0       0     0%    /proc
fd                         0       0       0     0%    /dev/fd
mnttab                     0       0       0     0%    /etc/mnttab
swap                 12715568      40 12715528     1%    /var/run
swap                 12927408  211880 12715528     2%    /tmp
/dev/md/dsk/d3       8268461 1044556 7141221    13%    /var
/dev/md/dsk/d4       8268461  566367 7619410     7%    /opt
$
$ swap -l
swapfile             dev  swaplo blocks   free
/dev/md/dsk/d1      85,1      16 16790384 16731680
$
$ metadb
        flags           first blk       block count
     a m  p  luo        16              1034            /dev/dsk/c1t0d0s7
     a    p  luo        1050            1034            /dev/dsk/c1t0d0s7
     a    p  luo        16              1034            /dev/dsk/c1t1d0s7
     a    p  luo        1050            1034            /dev/dsk/c1t1d0s7
     a    p  luo        16              1034            /dev/dsk/c4t600C0FF000000000083E1164D2E9EF00d0s7
     a    p  luo        16              1034            /dev/dsk/c4t600C0FF000000000083E11646E8CA000d0s7
     a    p  luo        16              1034            /dev/dsk/c4t600C0FF000000000083E114D508A0C00d0s7
$

Tornado
# 5  
Old 11-25-2006
Quote:
Originally Posted by Tornado
Since your using veritas, provided you have some free disk space you can use vxassist to grow the /oracle filesystem, on the fly and without an outage.

Have a look here:
http://www.adminschoice.com/docs/vxa...g%20a%20Volume

If using VFS 4.0 or later you should use vxresize, it is simpler because it resizes the filesystem as well as the volume.
# 6  
Old 11-25-2006
For a novice vmsa is the easiest way. vxva was way better, but vmsa replaced that Smilie
Tornado
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