Gunther Oracle APEX und Datenbank Wiki

Bei einer leeren Gruppe ist das einfach, bei einer Gruppe mit Daten sorgfältig die Doku von Oracle (siehe link unten) prüfen!

Diskgruppe von allen Knoten weg mounten:

 ALTER diskgroup VOT dismount;

Umbenennen mit renamedg :

renamedg dgname=VOT newdgname=VOTNFS asm_diskstring='/dev/oracleasm/disks/*,/opt/oracle/VOTNFSDISK/vote_nfs_disk01' verbose=true
 
 
Parsing parameters..
 
Parameters in effect:
 
         Old DG name          : VOT
         New DG name          : VOTNFS
         Phases               :
                 Phase 1
                 Phase 2
         Discovery str        : /dev/oracleasm/disks/*,/opt/oracle/VOTNFSDISK/vote_nfs_disk01
         Clean                : TRUE
         Raw only             : TRUE
renamedg operation: dgname=VOT newdgname=VOTNFS asm_diskstring=/dev/oracleasm/disks/*,/opt/oracle/VOTNFSDISK/vote_nfs_disk01 verbose=true
Executing phase 1
Discovering the group
Performing discovery with string:/dev/oracleasm/disks/*,/opt/oracle/VOTNFSDISK/vote_nfs_disk01
Identified disk UFS:/dev/oracleasm/disks/VOT1_02 with disk number:3 and timestamp (33039887 -1916262400)
Identified disk UFS:/dev/oracleasm/disks/VOT1 with disk number:0 and timestamp (33039532 -1177383936)
Identified disk UFS:/opt/oracle/VOTNFSDISK/vote_nfs_disk01 with disk number:2 and timestamp (33039765 973622272)
Checking for hearbeat...
Re-discovering the group
Performing discovery with string:/dev/oracleasm/disks/*,/opt/oracle/VOTNFSDISK/vote_nfs_disk01
Identified disk UFS:/dev/oracleasm/disks/VOT1_02 with disk number:3 and timestamp (33039887 -1916262400)
Identified disk UFS:/dev/oracleasm/disks/VOT1 with disk number:0 and timestamp (33039532 -1177383936)
Identified disk UFS:/opt/oracle/VOTNFSDISK/vote_nfs_disk01 with disk number:2 and timestamp (33039765 973622272)
Checking if the diskgroup is mounted or used by CSS
Checking disk number:3
Checking disk number:0
Checking disk number:2
Generating configuration file..
Completed phase 1
Executing phase 2
Looking for /dev/oracleasm/disks/VOT1_02
Modifying the header
Looking for /dev/oracleasm/disks/VOT1
Modifying the header
Looking for /opt/oracle/VOTNFSDISK/vote_nfs_disk01
Modifying the header
Completed phase 2
Terminating kgfd context 0x7f21b22650a0

Gruppe wieder neu anmelden:

ALTER diskgroup VOTNFS mount;

siehe https://docs.oracle.com/database/121/OSTMG/GUID-45A0F079-2D23-47D3-A366-569076D2F845.htm#OSTMG94159

Nach dem Umbennen die Ressource auch im Cluster freigeben, damit der alte Name der Disk Group nicht als Offline angezeigt wird.

crs_stat -t
 
Name           Type           Target    State     Host
------------------------------------------------------------
...
ora.VOT.dg     ora....up.type OFFLINE   OFFLINE
 
 
 
 
srvctl status diskgroup -diskgroup VOT
Disk Group VOT is not running
 
 
srvctl remove diskgroup -diskgroup VOT
 
 
#Offline Resource verschwunden!

Auf beiden Knoten dismounten:

ALTER diskgroup VOTNFS dismount;

Auf Knoten 1 im Restrict Modus mounten:

ALTER DISKGROUP VOTNFS MOUNT RESTRICTED;

Umbenennen:

#prüfen
SELECT d.name
    ,  d.path
 FROM v$asm_disk d 
      INNER JOIN v$asm_diskgroup g ON ( d.group_number=g.group_number)
WHERE g.name = 'VOTNFS';  
 
Disk                 Disk
Name                 path
-------------------- ------------------------------
VOTAS1               /dev/oracleasm/disks/VOT1_02
VOT1S1               /dev/oracleasm/disks/VOT1
VOT_0002             /opt/oracle/VOTNFSDISK/vote_nfs_disk01
 
 
# umbenennen
 
ALTER DISKGROUP VOTNFS RENAME DISK 'VOTAS1' TO 'VOT1S1', 'VOT_0002' TO 'VOT1NFS';
 
 
# prüfen
 
SELECT d.name
    ,  d.path
 FROM v$asm_disk d 
      INNER JOIN v$asm_diskgroup g ON ( d.group_number=g.group_number)
WHERE g.name = 'VOTNFS';  
 
Disk                 Disk
Name                 path
-------------------- ------------------------------
VOT1S2               /dev/oracleasm/disks/VOT1_02
VOT1S1               /dev/oracleasm/disks/VOT1
VOT1NFS              /opt/oracle/VOTNFSDISK/vote_nfs_disk01

Wieder „richtig“ mounten:

ALTER diskgroup VOTNFS dismount;
ALTER diskgroup VOTNFS mount;

Auf allen Knoten!

⇒ https://docs.oracle.com/database/121/OSTMG/GUID-A2E82BE6-BE5E-42F8-8723-03DF5CD55D90.htm#OSTMG95706