Day: February 3, 2015

ACFS Filesystem Resource Offline and Volume Device is Missing in /dev/asm/

Always enable Oracle ADVM volumes in mounted disk groups to make acfs filesystem available.

ISSUE

After rebooted Oracle clusterware, acfs filesystem resource is offline and correspondent volume device is missing in /dev/asm/ on node3 :

ora.SATA.ORADBA.advm
 ONLINE ONLINE racnode1 Volume device /dev/a
 sm/oradba-241 is onl
 ine,STABLE
 ONLINE ONLINE racnode2 Volume device /dev/a
 sm/oradba-241 is onl
 ine,STABLE
 OFFLINE OFFLINE racnode3 Volume device /dev/a
 sm/oradba-241 is off
 line,STABLE
 ONLINE ONLINE racnode4 Volume device /dev/a
 sm/oradba-241 is onl
 ine,STABLE

ASMCMD> volinfo -G SATA -a
Diskgroup Name: SATA
 Volume Name: ORADBA
 Volume Device: /dev/asm/oradba-241
 State: DISABLED
 Size (MB): 307200
 Resize Unit (MB): 32
 Redundancy: UNPROT
 Stripe Columns: 4
 Stripe Width (K): 128
 Usage: ACFS
 Mountpath: /oradba

The ACFS volume “ORADBA” was DISABLED.

SOLUTION

ASMCMD> volenable -G SATA ORADBA
ASMCMD> volinfo -G SATA -a
Diskgroup Name: SATA
 Volume Name: ORADBA
 Volume Device: /dev/asm/oradba-241
 State: ENABLED
 Size (MB): 307200
 Resize Unit (MB): 32
 Redundancy: UNPROT
 Stripe Columns: 4
 Stripe Width (K): 128
 Usage: ACFS
 Mountpath: /oradba

ASMCMD> volstat -G SATA
DISKGROUP NUMBER / NAME: 5 / SATA
---------------------------------------
 VOLUME_NAME
 READS BYTES_READ READ_TIME READ_ERRS
 WRITES BYTES_WRITTEN WRITE_TIME WRITE_ERRS
 -------------------------------------------------------------
 ORADBA
 203 114688 251 0
 11 12800 25 0

# mount -t acfs /dev/asm/oradba-241 /oradba

# df -h /oradba

Filesystem          Size Used Avail Use% Mounted on
/dev/asm/oradba-241 300G 203G 98G    68% /oradba

Also attach Oracle ADVM Volume Manager commands for reference:

Command Description
------------------------------------------------------------------
volcreate Creates an Oracle ADVM volume in a disk group.
voldelete Deletes an Oracle ADVM volume.
voldisable Disables Oracle ADVM volumes in mounted disk groups.
volenable Enables Oracle ADVM volumes in mounted disk groups.
volinfo Displays information about Oracle ADVM volumes.
volresize Resizes an Oracle ADVM volume.
volset Sets attributes of an Oracle ADVM volume in mounted disk groups.
volstat Reports volume I/O statistics.
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