Range of time to create a 100G bigfile Tablespace decent server HW

Question

Creating a 100G bigfile data space with autoextend 2G max of 200G. I run the script with smaller sizes 300mb initial 20mb autoextend 2g max size to ensure it worked as intended. All went well. So when I put in the larger file sizes it is taking a lot longer. I am aware that there is a large increase in the time needed to create 100GB tablespaces as oppposed to 300MB. I was wondering if you guys have created similar sized tablespaces and maybe how long it took you. I have let this run for over 12 hours and nothing to show for it.
Any contributions would be appreciated.
Bruce

Answer 1

Bruce_Bruce wrote:
I left it running over night and still nothing....
SQL> create bigfile tablespace bigtbs datafile '/data/oracle/mydb/bigtbs.dbf' size 100g;
Tablespace created.
Elapsed: 00:40:34.33
SQL> drop tablespace bigtbs including contents and datafiles;
Tablespace dropped.
Elapsed: 00:00:04.29On AIX5.3, RAID10 on SAN fibre-channel with following lv and vg specs :
oracle:/data/oracle# lslv lvoradata
LOGICAL VOLUME:     lvoradata              VOLUME GROUP:   vgoradata
LV IDENTIFIER:      xxx                    PERMISSION:     read/write
VG STATE:           active/complete        LV STATE:       opened/syncd
TYPE:               jfs2                   WRITE VERIFY:   off
MAX LPs:            2048                   PP SIZE:        1024 megabyte(s)
COPIES:             1                      SCHED POLICY:   parallel
LPs:                1398                   PPs:            1398
STALE PPs:          0                      BB POLICY:      relocatable
INTER-POLICY:       minimum                RELOCATABLE:    yes
INTRA-POLICY:       middle                 UPPER BOUND:    64
MOUNT POINT:        /data/oracle           LABEL:          /data/oracle
MIRROR WRITE CONSISTENCY: on/ACTIVE
EACH LP COPY ON A SEPARATE PV ?: yes
Serialize IO ?:     NO
oracle:/data/oracle# lsvg vgoradata
VOLUME GROUP:       vgoradata                VG IDENTIFIER:  yyy
VG STATE:           active                   PP SIZE:        1024 megabyte(s)
VG PERMISSION:      read/write               TOTAL PPs:      1399 (1432576 megabytes)
MAX LVs:            512                      FREE PPs:       0 (0 megabytes)
LVs:                2                        USED PPs:       1399 (1432576 megabytes)
OPEN LVs:           2                        QUORUM:         2 (Enabled)
TOTAL PVs:          1                        VG DESCRIPTORS: 2
STALE PVs:          0                        STALE PPs:      0
ACTIVE PVs:         1                        AUTO ON:        yes
MAX PPs per VG:     130048
MAX PPs per PV:     2032                     MAX PVs:        64
LTG size (Dynamic): 256 kilobyte(s)          AUTO SYNC:      no
HOT SPARE:          no                       BB POLICY:      relocatableYou may have wrong config.
Nicolas.