(其中红色字体为手工输入，蓝色字体为主要变化关注点。)
1、基本用法：
-bash-3.1$ onspaces --
Usage:
onspaces { -a <spacename> -p <path> -o <offset> -s <size> [-m <path> <offset>]
{ { [-Mo <mdoffset>] [-Ms <mdsize>] } | -U }
} |
{ -c { -d <DBspace> [-k <pagesize>] [-t]
-p <path> -o <offset> -s <size> [-m <path> <offset>] } |
{ -d <DBspace> [-k <pagesize>]
-p <path> -o <offset> -s <size> [-m <path> <offset>]
[-ef <first_extent_size>] [-en <next_extent_size>] } |
{ -b <BLOBspace> -g <pagesize>
-p <path> -o <offset> -s <size> [-m <path> <offset>] } |
{ -S <SBLOBspace> [-t]
-p <path> -o <offset> -s <size> [-m <path> <offset>]
[-Mo <mdoffset>] [-Ms <mdsize>] [-Df <default-list>] } |
{ -x <Extspace> -l <Location> } } |
{ -d <spacename> [-p <path> -o <offset>] [-f] [-y] } |
{ -f[y] off [<DBspace-list>] | on [<DBspace-list>] } |
{ -m <spacename> {-p <path> -o <offset> -m <path> <offset> [-y] |
-f <filename>} } |
{ -r <spacename> [-y] } |
{ -s <spacename> -p <path> -o <offset> {-O | -D} [-y] } |
{ -ch <sbspacename> -Df <default-list> } |
{ -cl <sbspacename> } |
{ -ren <spacename> -n <newname> }
-a - Add a chunk to a DBspace, BLOBspace or SBLOBspace
-c - Create a DBspace, BLOBspace, SBLOBspace or Extspace
-d - Drop a DBspace, BLOBspace, SBLOBspace, Extspace, or chunk
-f - Change dataskip default for specified DBspaces
-m - Add mirroring to an existing DBspace, BLOBspace or SBLOBspace
-r - Turn mirroring off for a DBspace, BLOBspace or SBLOBspace
-s - Change the status of a chunk
-ch - Change default list for smart large object space
-cl - garbage collect smart large objects that are not referenced
default-list = {[LOGGING = {ON|OFF}] [,ACCESSTIME = {ON|OFF}]
[,AVG_LO_SIZE = {1 - 2097152}] }
-ren - Rename a DBspace, BLOBspace, SBLOBspace or Extspace
2、实例：
（1）（创建dbspace）
-bash-3.1$ onstat -d
IBM Informix Dynamic Server Version 11.50.UC1DE -- On-Line -- Up 04:03:45 -- 93844 Kbytes
Dbspaces
address number flags fchunk nchunks pgsize flags owner name
44d4a7f8 1 0x70001 1 1 2048 N B informix rootdbs
44e107e8 2 0x60001 2 1 2048 N B informix dbs1
2 active, 2047 maximum
Chunks
address chunk/dbs offset size free bpages flags pathname
44d4a958 1 1 0 450000 340077 PO-B /home/informix/ids11uc1/dbs/rootdbs
44e10948 2 2 0 250000 161794 PO-B /dbs/dbs1
2 active, 32766 maximum
NOTE: The values in the "size" and "free" columns for DBspace chunks are
displayed in terms of "pgsize" of the DBspace to which they belong.
Expanded chunk capacity mode: always
-bash-3.1$ touch /dbs/dbstest1
-bash-3.1$ chmod 660 /dbs/dbstest1
-bash-3.1$ onspaces -c -d dbspacetest1 -p /dbs/dbstest1 -o 20000 -s 1000000
Verifying physical disk space, please wait ...
/dbs: write failed, file system is full.
-bash-3.1$ onspaces -c -d dbspacetest1 -p /dbs/dbstest1 -o 20000 -s 1000
Verifying physical disk space, please wait ...
Space successfully added.
** WARNING ** A level 0 archive of Root DBSpace will need to be done.
-bash-3.1$ onstat -d
IBM Informix Dynamic Server Version 11.50.UC1DE -- On-Line -- Up 04:08:39 -- 93844 Kbytes
Dbspaces
address number flags fchunk nchunks pgsize flags owner name
44d4a7f8 1 0x70001 1 1 2048 N B informix rootdbs
44e107e8 2 0x60001 2 1 2048 N B informix dbs1
472abd88 3 0x60001 3 1 2048 N B informix dbspacetest1
3 active, 2047 maximum
Chunks
address chunk/dbs offset size free bpages flags pathname
44d4a958 1 1 0 450000 340077 PO-B /home/informix/ids11uc1/dbs/rootdbs
44e10948 2 2 0 250000 161794 PO-B /dbs/dbs1
472ead50 3 3 10000 500 447 PO-B /dbs/dbstest1
3 active, 32766 maximum
NOTE: The values in the "size" and "free" columns for DBspace chunks are
displayed in terms of "pgsize" of the DBspace to which they belong.
Expanded chunk capacity mode: always
（2）（创建blobspace）
-bash-3.1$ touch dbtest2
-bash-3.1$ chmod 660 dbtest2
-bash-3.1$ onspaces -c -b blobsptest1 -g 50 -p /home/share/dbtest2 -o 200000 -s 1000
Verifying physical disk space, please wait ...
Space successfully added.
** WARNING ** A level 0 archive of Root DBSpace will need to be done.
-bash-3.1$ onstat -d
IBM Informix Dynamic Server Version 11.50.UC1DE -- On-Line -- Up 04:29:15 -- 93844 Kbytes
Dbspaces
address number flags fchunk nchunks pgsize flags owner name
44d4a7f8 1 0x70001 1 1 2048 N B informix rootdbs
44e107e8 2 0x60001 2 1 2048 N B informix dbs1
472abd88 3 0x60001 3 1 2048 N B informix dbspacetest1
4732ae68 4 0x60011 4 1 102400 N BB informix blobsptest1
4 active, 2047 maximum
Note: For BLOB chunks, the number of free pages shown is out of date.
Run 'onstat -d update' for current stats.
Chunks
address chunk/dbs offset size free bpages flags pathname
44d4a958 1 1 0 450000 340077 PO-B /home/informix/ids11uc1/dbs/rootdbs
44e10948 2 2 0 250000 161794 PO-B /dbs/dbs1
472ead50 3 3 10000 500 447 PO-B /dbs/dbstest1
472edd50 4 4 100000 500 ~10 10 POBB /home/share/dbtest2
4 active, 32766 maximum
NOTE: The values in the "size" and "free" columns for DBspace chunks are
displayed in terms of "pgsize" of the DBspace to which they belong.
Expanded chunk capacity mode: always
（3）（创建sbspaces）
-bash-3.1$ touch /home/share/dbtest3
-bash-3.1$ chmod 660 dbtest3
-bash-3.1$ onspaces -c -S sbspacetest1 -p /home/share/dbtest3 -o 200000 -s 10000
Verifying physical disk space, please wait ...
Space successfully added.
** WARNING ** A level 0 archive of Root DBSpace will need to be done.
-bash-3.1$ onstat –d
（略）
（4）（删除dbspace or sbspace）
-bash-3.1$ onspaces -d dbspacetest1
WARNING: Dropping a DBspace.
Do you really want to continue? (y/n)y
Space successfully dropped.
** WARNING ** A level 0 archive will need to be done before any chunks from
DBspace dbspacetest1 can be reused (see Dynamic Server Administrator's manual).
-bash-3.1$ onspaces -d sbspacetest1
WARNING: Dropping a sbspace.
Do you really want to continue? (y/n)y
Space successfully dropped.
** WARNING ** A level 0 archive will need to be done before any chunks from
sbspace sbspacetest1 can be reused (see Dynamic Server Administrator's manual).
（5）（增加chunk到dbspace or blobspace or subspace）
-bash-3.1$ touch /home/share/dbchunk
-bash-3.1$ chmod 660 dbchunk
-bash-3.1$ onspaces -a blobsptest1 -p /home/share/dbchunk -o 200000 -s 1500
Verifying physical disk space, please wait ...
Chunk successfully added.
-bash-3.1$ onstat -d
IBM Informix Dynamic Server Version 11.50.UC1DE -- On-Line -- Up 04:52:13 -- 93844 Kbytes
Dbspaces
address number flags fchunk nchunks pgsize flags owner name
44d4a7f8 1 0x70001 1 1 2048 N B informix rootdbs
44e107e8 2 0x60001 2 1 2048 N B informix dbs1
4732ae68 4 0x60011 4 2 102400 N BB informix blobsptest1
3 active, 2047 maximum
Note: For BLOB chunks, the number of free pages shown is out of date.
Run 'onstat -d update' for current stats.
Chunks
address chunk/dbs offset size free bpages flags pathname
44d4a958 1 1 0 450000 340077 PO-B /home/informix/ids11uc1/dbs/rootdbs
44e10948 2 2 0 250000 161794 PO-B /dbs/dbs1
472ead50 3 4 100000 750 ~15 15 POBB /home/share/dbchunk
472edd50 4 4 100000 500 ~10 10 POBB /home/share/dbtest2
4 active, 32766 maximum
NOTE: The values in the "size" and "free" columns for DBspace chunks are
displayed in terms of "pgsize" of the DBspace to which they belong.
Expanded chunk capacity mode: always
（6）（删除chunk）
-bash-3.1$ onspaces -d blobsptest1 -p /home/share/dbchunk -o 50000
IBM Informix Dynamic Server must be in quiescent mode.
Chunk not dropped.
-bash-3.1$ onmode -s
This will perform a GRACEFUL SHUTDOWN -
Do you wish to continue (y/n)? y
-bash-3.1$ onstat -
IBM Informix Dynamic Server Version 11.50.UC1DE -- Quiescent -- Up 04:59:43 -- 93844 Kbytes
-bash-3.1$ onspaces -d blobsptest1 -p /home/share/dbchunk -o 50000
WARNING: Dropping a chunk.
Do you really want to continue? (y/n)y
Chunk not dropped.
ISAM error: No such chunk
-bash-3.1$ onspaces -d blobsptest1 -p /home/share/dbchunk -o 200000
WARNING: Dropping a chunk.
Do you really want to continue? (y/n)y
Chunk successfully dropped.
** WARNING ** A level 0 archive for BLOBspace blobsptest1 will need to be done
before '/home/share/dbchunk' can be reused (see Dynamic Server Administrator's manual).