Oracle RAC processes setting

SQL> show parameter sga;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
lock_sga                             boolean     FALSE
pre_page_sga                         boolean     FALSE
sga_max_size                         big integer 1536M
sga_target                           big integer 1536M
SQL> show parameter target;

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
archive_lag_target                   integer     0
db_flashback_retention_target        integer     1440
fast_start_io_target                 integer     0
fast_start_mttr_target               integer     0
pga_aggregate_target                 big integer 9651M
sga_target                           big integer 1536M
SQL> select name, value from v$parameter where name in ('sessions','processes','transactions');

NAME
--------------------------------------------------------------------------------
VALUE
--------------------------------------------------------------------------------
processes
150

sessions
170

transactions
187

# processes=x sessions=x*1.1+5 transactions=sessions*1.1

350

350*1.1+5
390.0

(350*1.1+5)*1.1
429.00


select name, value from v$parameter where name in ('sessions','processes','transactions');
alter system set processes=350 scope=spfile sid='*';
alter system set sessions=390 scope=spfile sid='*';
alter system set transactions=429 scope=spfile sid='*';

Troubleshooting

OCR initialization failed accessing OCR device: PROC-26: Error while accessing the physical storage Operating System error [No such file or directory]

shebao1

# fdisk -l

Disk /dev/sda: 298.9 GB, 298999349248 bytes
255 heads, 63 sectors/track, 36351 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14       36351   291884985   8e  Linux LVM

Disk /dev/sdc: 2147 MB, 2147483648 bytes
67 heads, 62 sectors/track, 1009 cylinders
Units = cylinders of 4154 * 512 = 2126848 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1        1009     2095662   83  Linux

Disk /dev/sde: 737.6 GB, 737660633088 bytes
255 heads, 63 sectors/track, 89682 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sde1               1       89682   720370633+  83  Linux

Disk /dev/sdf: 21.4 GB, 21474836480 bytes
64 heads, 32 sectors/track, 20480 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdf1               1       20480    20971504   83  Linux

Disk /dev/sdh: 536.8 GB, 536870912000 bytes
255 heads, 63 sectors/track, 65270 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdh1               1       65270   524281243+  83  Linux
[root@shebao1 ~]# /etc/init.d/oracleasm
Usage: /etc/init.d/oracleasm {start|stop|restart|enable|disable|configure|createdisk|deletedisk|querydisk|listdisks|scandisks|status}
[root@shebao1 ~]# /etc/init.d/oracleasm querydisk vol1
Disk "VOL1" is a valid ASM disk
[root@shebao1 ~]# /etc/init.d/oracleasm querydisk VOL1
Disk "VOL1" is a valid ASM disk
[root@shebao1 ~]# /etc/init.d/oracleasm querydisk -d VOL1
Disk "VOL1" is a valid ASM disk on device [8, 65]
[root@shebao1 ~]# ls -l /dev/ | grep 8 | grep 65
brw-r-----  1 root disk   8,    65 2013-12-10 sde1
[root@shebao1 ~]# /etc/init.d/oracleasm querydisk -d VOL2
Disk "VOL2" is a valid ASM disk on device [8, 113]
[root@shebao1 ~]# ls -l /dev/ | grep 8 | grep 113
brw-r-----  1 root disk   8,   113 2013-12-10 sdh1
[root@shebao1 ~]# ls -l /dev/raw/
总计 0
crw-r----- 1 oracle oinstall 162, 1 02-08 17:43 raw1
crw-r----- 1 oracle oinstall 162, 2 02-08 16:15 raw2

1. Check OCR(votedisk)

[root@shebao1 ~]# /oracle/app/product/10.2.0/db_1/bin/crsctl query css votedisk
 0.     0    /dev/raw/raw1
 located 1 votedisk(s).

[root@shebao1 ~]# cat /etc/udev/rules.d/60-raw.rules

# Enter raw device bindings here.
#
# An example would be:
#   ACTION=="add", KERNEL=="sda", RUN+="/bin/raw /dev/raw/raw1 %N"
# to bind /dev/raw/raw1 to /dev/sda, or
#   ACTION=="add", ENV{MAJOR}=="8", ENV{MINOR}=="1", RUN+="/bin/raw /dev/raw/raw2 %M %m"
# to bind /dev/raw/raw2 to the device with major 8, minor 1.
ACTION=="add",KERNEL=="sdc1",RUN+="/bin/raw /dev/raw/raw1 %N"
ACTION=="add",KERNEL=="sdf1",RUN+="/bin/raw /dev/raw/raw2 %N"
KERNEL=="raw[1-2]", OWNER="oracle", GROUP="oinstall", MODE="640"

shebao2