Exa 3일째
EM 설치 여부 ORACLE_HOME/sid_host명 database.example.com_orcl
하나의 디스크를 셀 디스크라 한다 디스크를 LUN으로 포메팃해서 CELL Disk로 만드는것
디스크의 원판의 원이 트랙 그 트랙을 나누는게 섹터
셀은 자기 자신의 파트너 셀을 갖는다 셀 1번의 디스크 10번의 파트너 셀은 2번 셀의 10번 디스크다
ASM Disk Group E N H 0 2 3
미러를 정확히 관리하려면 기본 그룹에 Failure Group을 따로 만들어야 한다
[root@cell01 ~]# fdisk -lu /dev/sda
Disk /dev/sda: 21.4 GB, 21474836480 bytes
255 heads, 63 sectors/track, 2610 cylinders, total 41943040 sectors
Units = sectors of 1 * 512 = 512 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 63 208844 104391 83 Linux
/dev/sda2 208845 41929649 20860402+ 8e Linux LVM
[root@cell01 ~]# cellcli
CellCLI: Release 11.2.2.1.0 - Production on Tue Dec 08 16:52:25 PST 2015
Copyright (c) 2007, 2009, Oracle. All rights reserved.
Cell Efficiency Ratio: 27M
CellCLI> list celldisk attributes name, devicePartition, size where diskType='HardDisk'
CD_disk01_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk01 496M
CD_disk02_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk02 496M
CD_disk03_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk03 496M
CD_disk04_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk04 496M
CD_disk05_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk05 496M
CD_disk06_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk06 496M
CD_disk07_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk07 496M
CD_disk08_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk08 496M
CD_disk09_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk09 496M
CD_disk10_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk10 496M
CD_disk11_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk11 496M
CD_disk12_cell01 /opt/oracle/cell11.2.2.1.0_LINUX_101005/disks/raw/disk12 496M
성능지표를 출력하기 위한 명령어로 cell을 온라인으로 하기 전에 디스크와 플래시 메모리의 성능을 확인할 수 있다
CellCLI> calibrate
CELL-01523: CALIBRATE should not run while CELLSRV is running. Stop CELLSRV or enter CALIBRATE FORCE.
CellCLI> alter cell shutdown services cellsrv
Stopping CELLSRV services...
The SHUTDOWN of CELLSRV services was successful.
CellCLI> calibrate force
Calibration will take a few minutes...
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