Dear people,
After installing ORACLE 8.0.4 on the DEC with Digital Unix version 4.0D I 
get the error message 'ORA 27123: unable to attach to shared memory 
segment'.
I believe this has to due with attributes in one of the subsystems of the 
kernel.
In the past I have modified the file '/etc/sysconfigtab' for tuning the 
dynamic kernel with the following attributes:
ipc:
        shm-min = 1
        shm-max = 8388608
        shm-mni = 100
        shm-seg = 10
        shm-all = 240
        num-of-sems = 60
        sem-map = 1026
        sem-mni = 1024
        sem-mns = 1024
        sem-mnu = 1024
        sem-ume = 10
        msg-max = 4096
        msg-mnb = 8192
        msg-mni = 320
        msg-tql = 320
Also I have created a new kernel by modifying the file /sys/conf/DEC, I 
have added the following attributes:
dfldsiz         134217728
#maxdsiz                1073741824
dflssiz         2097152
#maxssiz                33554432
shmmin          1
shmmax          8388608
shmmni          100
shmseg          10
semmni          1024
semmns          1024
semume          10
maxdsiz         52428800
maxssiz         52428800
During boot of the system the following errors/messages appears:
attribute shm_all not in subsystem ipc
attribute sem_map not in subsystem ipc
attribute sem_mns not in subsystem ipc
attribute sem_mnu not in subsystem ipc
This modofications have I done in the past on version Digital Unix version 
4.0B and Then I did not get these messages.
Can you tell me what to do to configure and tuning the (shared) memory to 
let the existing applications and ORACLE run without problems?
Thanks in advange,
Crovadis Development b.v.
Wiebe Jansma - Software Engineer
Email: Wiebe_Jansma_at_crovadis.com
Algolweg 9/15			Tel.:  +31 (0)33 455 2060
3821 BG Amersfoort		Fax.: +31 (0)33 455 2660
The Netherlands			
http://www.crovadis.com
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Received on Thu Apr 13 2000 - 14:32:44 NZST