Return to the Lifetime Software Support Page

UnixWare IPC Information

NOTE: This information was provided by a sharp support person, Ruben Garcia [rgarcia@mail.npc.net], at one of our customers.

The Lifetime Data Entry SRG specifies the parameter keywords of SEMMNS and SEMMNU which are not included in UnixWare 2.1.2, which has SEMOPM and SEMUME instead. Another customer was having difficulty attempting to adjust some of these values. The numbers illustrated may be much different than required at another site and the discussion is focused on how to change, rather than what number to use.

SHMSEG

If you change the SHMSEG parameter to 150 (/etc/conf/bin/idtune SHMSEG 150) a check is done that the new value is in the range described in /etc/conf/cf.d/mtune.

You cannot increase the maximum value from 15 to 150 into the mtune file manually, because it is rebuilt every time.

The solution is to increase the value from 15 to 150 into /etc/conf/mtune.d/ipc and then change the parameter using "/etc/conf/bin/idtune SHMSEG 150".

If you need to increase other parameters follow the same steps.

FLCREC

Edit file /etc/conf/mtune.d/fs — it should look like this:

     *ident  "@(#)/etc/conf/mtune.d/fs.sl 1.1 eiger 11/30/95 51834 NOVELL"
     *ident  "$Header: $"

     * Generic Filesystem Parameters -------
     FDFLUSHR        1       1       1200
     NAUTOUP         60      0       1200
     FLCKREC         300     100     4500                                *
     RSTCHOWN        0       0       1
     NC_HASH_SIZE    64      64      256
     * Buffer Cache Parameters -------------
     NBUF            256     20      3000
     NHBUF           64      32      1024
     NPBUF           64      20      100
     NPGOUTBUF       16      1       100
     * Default root file system type -------
     ROOTFSTYPE      ""

Also check the file /etc/conf/cf.d/stune —it look similar to the following:

     NUMREGPT        256
     NUMSCOPT        32
     ODIMEM_NUMBUF   0
     ODIMEM_MBLK_NUMBUF      0
     SHMMNI  140
     SHMSEG  150
     SHMMAX  133916
     SEMMNI  5896
     SEMMSL  239
     SEMUME  20
     MSGMAX  512
     FLCKREC 4500
     MAXUP 250

Finally, you should be able to rebuild the kernel using "/etc/conf/bin/idbuild -B"

6804 South Canton Avenue, Suite 900, Tulsa, OK 74136-3424 | Phone (918) 491-6144 | Fax (918) 494-2701