Commands | Usage | RAC | ASM | Home |
cluvfy | Cluster Verify Utility or cvu performs system checks in integrity of all nodes, integrity of OCR, connectivity between all nodes, compare properties of one node with that of other and space availability | Y | Y | Grid Home and Oracle Home |
olsnodes | The olsnodes command provides the list of nodes, local node name, vip addresses of nodes, status of nodes and type of nodes in cluster. | Y | Oracle CRS Home, Run as root user | |
crsctl | Starting and stopping Oracle Clusterware resources, Enabling and disabling Oracle Clusterware daemons, Checking the health of the cluster, Managing resources that represent third-party applications. | Y | Y* Voting disk | Grid Home |
srvctl | Server Control Utility to manage the Oracle RAC database. SRVCTL commands to add, remove, start, stop, modify, enable, and disable a number of components/objects, such as databases, instances, listeners, SCAN listeners, services, grid naming service (GNS), and Oracle ASM.Some SRVCTL operations for instance, database, service and nodeapps modify the configuration data stored in the Oracle Cluster Registry (OCR). Good link which shows various options for this command is here | Y | Y | Oracle Home,Run as oracle user |
asmcmd | ASMCMD is a command-line utility that you can list the content, perform searches, create and remove directories and aliases, display space utilization within Automatic Storage Management (ASM) disk groups. Orafaq link for ASMCMD is here | Y | Preferably separate ASM home | |
ocrconfig | The ocrconfig command is used to manage the OCR. Ocrconfig provides the ability to import, export, add, delete, restore, overwrite, backup, repair, replace, move, upgrade, or downgrade the OCR. Same command can be used for OLR using –local option. | Y | Y | Grid Home,Run as root user |
ocrdump | The ocrdump utility allows you to dump the contents of the OCR or the OLR to a file or to stdout. You can then read the resulting output for diagnostic and administration purposes. | Y | Y | Grid Home,Run as root user |
ocrcheck | The ocrcheck utility is used to validate the integrity of the OCR and the OLR. Use the ocrcheck command whenever you have made any changes to your cluster (such as changing the VIP for example) | Y | Y | Grid Home,Run as root user |
oifcfg | The Oracle Interface Configuration Tool is used to define and administer network interfaces such as the public and private interfaces. | Y | Grid Home,Run as oracle |
Processes |
Name |
Instance |
||
Single | RAC | ASM | ||
ACFS | ASM Cluster File System CSS Process | Y | Y | |
ACMS | Atomic Controlfile to Memory Service (ACMS). In an Oracle RAC environment | Y | ||
ARBn | ASM Rebalance Process | Y | ||
ARBx | Background Process | Y | Y | |
ARCH | Archiver Process | Y | Y | |
ARCHMON | Archive Monitor | Y | Y | |
ASMB | Automatic Storage Management | Y | Y | Y |
BMRn | Automatic Block Media Recovery Slave Pool Process | Y | ||
Bnnn | ASM Blocking Slave Process for GMON | Y | ||
CJQ0 | Job Queue Coordinator Process | Y | ||
CKPTxx | Checkpoint | Y | Y | |
CTWR | Change Tracking Writer | Y | Y | |
DBRM | Database Resource Manager Process | Y | ||
DBWn | Database Writer | Y | Y | |
DIAG | Diagnostic Capture Process | Y | Y | |
DMnn | Data Pump Master Process | Y | ||
Dnnn | Dispatcher | Y | Y | |
DRnn | ASM Disk Resynchronization Slave Process | Y | ||
EMNC | EMON Coordinator Process | Y | Y | |
Ennn | EMON Slave Process | Y | Y | |
EXTPROC | Callout queues | Y | Y | |
FBDA | Flashback Data Archiver Process | Y | Y | |
FMON | File Mapping Monitor Process | Y | Y | |
GEN0 | General Task Execution Process | Y | Y | |
GMON | ASM Disk Group Monitor Process | Y | ||
GTX0-j | Global Transaction Process. The GTX0-j
process provides transparent support for XA global
transactions in a RAC environment. The database autotunes the number of these processes based on the workload of XA global transactions. |
Y | ||
Innn | Disk and Tape I/O Slave Process | Y | ||
Jnnn | Job Queue Slave Process | Y | ||
LCK0 | Instance Enqueue Process. The LCK0 process manages non-Cache Fusion resource requests such as library and row cache requests. | Y | ||
LCKn | Lock Process | Y | Y | |
LGWR | Log Writer | Y | Y | |
LISTENER | TCPIP server | Y | Y | |
LMD | Global Enqueue Service Daemon. The LMD process manages incoming remote resource requests within each instance. | Y | ||
LMHB | Global Cache/Enqueue Service Heartbeat Monitor | Y | Y | Y |
LMON | Global Enqueue Service Monitor. The LMON process monitors global enqueues and resources across the cluster and performs global enqueue recovery operations. | Y | ||
LMS | Global Cache Service Process. The LMS
process maintains records of the datafile statuses and each
cached block by recording information in a Global Resource Directory (GRD). |
Y | ||
MARK | Mark AU for Resynchronization Coordinator Process | Y | Y | |
MMAN | Background Process | Y | Y | |
MMNL | Memory Monitor Light | Y | Y | |
MMON | Memory Monitor | Y | Y | |
Mnnn | MMON Slave Process | Y | Y | |
ORBn | Background Process | Y | Y | |
OSMB | Background Process | Y | Y | |
PING | Interconnect Latency Measurement Process | Y | Y | Y |
PMON | Process Monitor | Y | Y | |
Pnnn | Parallel Query Slave | Y | Y | |
PRnn | Parallel Recovery Process | Y | ||
PSP0 | Process Spawner Process | Y | Y | |
QMNxx | Advanced Queueing Processes | Y | Y | |
RBAL | Background Process | Y | Y | |
RCBG | Result Cache Background Process | Y | Y | |
RECO | Distributed Transaction Recoverer | Y | Y | |
RMSn | Oracle RAC Management Processes (RMSn). | Y | ||
RSMN | Remote Slave Monitor manages background slave process creation and communication on remote instances. | Y | ||
RVWR | Recovery Writer | Y | Y | |
Rnnn | ASM Block Remap Slave Process | Y | ||
SMON | System Monitor | Y | Y | |
Snnn | Servers | Y | Y | |
SNPxx | Snapshot process queues | Y | Y | |
VKTM | Virtual Keeper of Time Process | Y | Y | |
VMB0 | Volume Membership Process | Y | ||
Vnnn | ASM Volume I/O Slave Process | Y | ||
Xnnn | ASM Disk Expel Slave Process | Y |