IW failback with pre-migrated file at cache and data update during application failover at home

Add data, migrate and pre-migrate a file in cache

# cat /tmp/test_append >>/gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test c2m3n08 Wed Mar 02 02:03:07 0]~# ls -lsai /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

31981568 4096 -rw-r--r-- 1 root root 4194304 Mar  2 02:03 /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

c2m3n08 Wed Mar 02 02:03:56 0]~# mmafmctl fs1 getstate -j newSanity-160302-120326-KNFS-TC5-IW
Fileset Name    Fileset Target                                Cache State          Gateway Node    Queue Length   Queue numExec
------------    --------------                                -------------        ------------    ------------   -------------
newSanity-160302-120326-KNFS-TC5-IW nfs://c2m3n06/gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW Active c25m4n03.gpfs.net 0   24

# dsmmigrate /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

Tivoli Storage Manager
Command Line Space Management Client Interface
  Client Version 7, Release 1, Level 5.25 20151025A
  Client date/time: 03/02/2016 02:05:03
(c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved.

# dsmls /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

Tivoli Storage Manager
Command Line Space Management Client Interface
  Client Version 7, Release 1, Level 5.25 20151025A
  Client date/time: 03/02/2016 02:05:11
(c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved.

        ActS         ResS         ResB   FSt    FName
     4194304            0            0   m      test

# md5sum /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test b5cfa9d6c8febd618f91ac2843d50a1c /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test c2m3n08 Wed Mar 02 02:05:42 0]~# dsmls /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

Tivoli Storage Manager
Command Line Space Management Client Interface
  Client Version 7, Release 1, Level 5.25 20151025A
  Client date/time: 03/02/2016 02:05:45
(c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved.

        ActS         ResS         ResB   FSt    FName
     4194304      4194304         4096   p      test

Unlink cache feigning disaster

# mmunlinkfileset fs1 newSanity-160302-120326-KNFS-TC5-IW

Fileset newSanity-160302-120326-KNFS-TC5-IW unlinked.

Updating data at home

# ls -lsai /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

349484 4096 -rw-r--r-- 1 root root 4194304 Mar  2 02:03 /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

# cat /tmp/test >>/gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test c2m3n06 Wed Mar 02 02:07:38 1]~# ls -lsai /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

349484 7936 -rw-r--r-- 1 root root 8388608 Mar  2 02:07 /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test
c2m3n06 Wed Mar 02 02:07:41 1]~#

Linking back cache to say cache came back and running failback

# mmlinkfileset fs1 newSanity-160302-120326-KNFS-TC5-IW -J /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW

Fileset newSanity-160302-120326-KNFS-TC5-IW linked at /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW

#mmafmctl fs1 failback -j newSanity-160302-120326-KNFS-TC5-IW --start --failover-time 02:06:45EST c2m3n08 Wed Mar 02 02:09:15 0]~# mmafmctl fs1 failback -j newSanity-160302-120326-KNFS-TC5-IW --stop

File becomes resident at cache after failback

# dsmls /gpfs/fs1/newSanity-160302-120326-KNFS-TC5-IW/test

Tivoli Storage Manager
Command Line Space Management Client Interface
  Client Version 7, Release 1, Level 5.25 20151025A
  Client date/time: 03/02/2016 02:09:24
(c) Copyright by IBM Corporation and other(s) 1990, 2016. All Rights Reserved.

        ActS         ResS         ResB   FSt    FName
     8388608      8388608            0   r      test