Troubleshooting storage solutions

Edit online

There are some common problems that might occur when using IBM® Storage Protect Snapshot and storage solutions. These problems and the solutions are provided to help you complete problem determination activities.

Question
During the backup or cloning on a storage solution running a supported AIX® operating system, the mount of one or more file systems fails on the auxiliary host with the following message: 
FMM0644E Error on running command: mount: 0506-334 
/oracle/C21/mirrlog2 is not a known file system.

How can this error be resolved?

Answer
When the storage solution running a supported AIX operating system imports a volume group, use the label of the logical volume for the new mount point. Check the production system to determine the labels of the logical volumes that support backup and clone operations. The fields mount point and label should have identical values. For example: 
# lslv lvDS1data1
LOGICAL VOLUME: lvDS1data1 VOLUME GROUP: DS1data1vg
...
MOUNT POINT: /db2/DS1/db2ds1/NODE0001 LABEL: /db2/DS1/db2ds1/NODE0001
Problem
In an environment with an IBM System Storage® N series and NetApp storage system and IBM Storage Protect Snapshot, the performance seems to lag. What could be the problem?
Solution
The primary variable that affects the performance of the IBM Storage Protect Snapshot is the number of volumes and LUNs that are backed up with a FlashCopy®.
Problem
As an administrator using IBM Storage Protect Snapshot, how do I mount a backup that resides on a SAN-attached IBM System Storage N series or NetApp storage system?
Answer
After the backup is created, run the following commands: 
fcmcli -f mount
Verify that the snapshot is mounted on the backup system.
Problem
As an administrator using IBM Storage Protect Snapshot, how do I complete an offloaded backup of a database that resides on a SAN-attached IBM System Storage N series or NetApp storage system? This backup copy is used to recover from disasters.
Answer
After the backup is created, run the following commands: 
fcmcli -f tape_backup
Verify that the snapshot is mounted on the backup system.
Problem
As an administrator using IBM Storage Protect Snapshot, how do I restore disk backups that reside on a SAN-attached IBM System Storage N series or NetApp storage system? The goal is to integrate recovery into established workflows.
Answer
For the configured application, run one of the following commands to restore:
  • db2 restore db <id> use snapshot
  • acsora -f restore
  • brrestore
  • tsm4acs -f restore
Verify that the data can be used by the respective application.