Troubleshooting - SnapProtect Backup

Table of Contents

Virtual Server (VMware)

Oracle

SAP for Oracle

NAS

Virtual Server (Hyper-V)

DB2

Unix File System

Virtual Server (VMware)

Completed With One or More Errors

Backup jobs from Virtual Server iDataAgent will be displayed as "Completed w/ one or more errors" in the Job History in the following cases:

If the meta data collection operation fails during a snap backup job, the job will be displayed as "Completed" in the Backup Job History of the subclient.  You can create the bCWEJobMDataFails registry key if you want to display the status as "Completed w/ one or more errors" in such scenario.

While performing a snapprotect backup on a linux VM, the metadata collection is not included in the backup

To get the file level details of a Linux VM, follow the steps given below:

  1. Perform a Disk Level SnapProtect backup.
  2. Perform a Backup Copy operation.
  3. Perform a File level Browse operation using the Primary Copy. You can specify the copy precedence by clicking Advanced on the Browse Options dialog box.

Restoring Independent Disk/Physical RDM results in VM not powering on

If the virtual machine under backup includes independent disks/physical RDMs, these disks will be skipped. During a full restore the independent disk/Physical RDM gets restored with 0MB, and the virtual machine cannot be powered on. As a work around, prior to powering on, manually remove the independent disks/Physical RDMs and then power on the restored virtual machine.

Mount Operations on an ESX Server are failing using NFS protocol

When performing SnapProtect operations on VMware using NFS file-based protocol, ensure the following:

The NetApp storage device name specified in Array Management matches that on the ESX Server.
The VMkernel IP address of all ESX servers that are used for mount operations should be added to the root Access of the NFS share on the source storage device. This needs to be done because the list of all root hosts able to access the snaps are inherited and replicated from the source storage device.

Revert Operation in Pending State

symptom

The Revert job may go to Pending state with the following error:

File level revert is not supported for a Virtual Machine [%VMNAME%] which is on VMFS datastore. [Datastore(s) [%DatastoreName%] does not support file level revert.

Cause

The virtual machine may have NFS and iSCSI disks. Ensure that all the disks reside on the NFS data store. If the data does not reside on the NFS data store, you cannot perform the revert operation.

Solution

Perform the conventional Container Restore to bring the data back to the point-in-time.

Revert Operation Fails

Before starting the revert operation, ensure that the Snapshot which you are using to perform the revert operation is not mounted.

Exchange Mining Operation Fails

Symptom

Exchange Snap Mining operation may fail if SAN mode is used to perform the backup and snapshots were exposed in read-only mode.

Solution

It is recommended to use NBD mode for Exchange Snap Mining backup. However, if you want to use SAN mode, ensure that all the disks exposed to the proxy computer have read and write permissions.

Follow the steps give below to clear read-only attributes of any SAN shared disk:

  1. Open the Command Prompt on the proxy computer.
  2. Enter the following commands:

    diskpart

    san policy=onlineall

Virtual Machine Registration Fails during the Backup Copy Operation

Symptom

During the backup copy operation, the registration of a virtual machine fails with the following error:

The Operation is not allowed in the current state

Cause

The ESX server which hosts the virtual machine is in the maintenance mode.

Solution

Before initiating the backup copy operation, ensure that the ESX server is not in the maintenance mode.  If you are performing an inline backup copy, before initiating the SnapProtect operation, ensure that the any host involved in the backup, is not in the maintenance mode.

Backup Job Goes to Pending State

Symptopm

The SnapProtect backup job goes to pending state.

Cause

You cannot perform the SnapProtect backup of a template virtual machine. If the subclient for which you are performing the SnapProtect backup, contains the template virtual machine, the backup job goes to pending state.

Solution

Set the SkipTemplateVM registry key to 1 and perform the backup of the subclient which contains the template virtual machine. The template virtual machine will not be included in the backup and the backup job will complete successfully.

Live Browse fails to download VMX files with HTTP error 403

Symptom

You may get following error when you are restoring files and folders from a virtual machine:

Failed to download config file

Solution

Disable the Symantec End Point Protection on the computer where you have installed Virtual Server iDataAgent and MediaAgent and perform the file level restore.

Backup fails to download VMX files

Symptom

The backup operation fails with a error: Unable to download config files.

Cause

The name of the datastore contains + or @.

Solution

  1. Check if the datastore of any virtual machine included in the backup contains + or @ characters in its name.
  2. Rename the datastore and remove + and @ characters from the name.
  3. Perform the backup operation.

Unable to Mount the Snapshot

Symptom

When you are mounting any snapshot on a host, you may get following error:

Discovery Failed. Unable to access host

Cause

The Snaps created during SnapProtect operation dialog box displays a list of all the snapshots on a storage array. If you open the Snaps created during SnapProtect operation dialog box by one of the following methods, you can only view the list of snapshots and cannot mount the snapshots:

Solution

For more information about correct method mounting a snapshot, refer to Mount Snapshots.

NFS Datastore becomes inaccessible after mounting the Snapshot

Symptom

Successfully mounted datastore becomes inaccessible when the browse operation is performed or data is accessed.

Cause

This issue is caused by incorrect MTU settings between ESX proxy host and NFS storage.

Solution

To check if the issue is occurring due to incorrect MTU settings, use ping command with DF “do not fragment” option by providing different MTU values and check if Ping is working as expected.

File-level Restore Fails When Destination Client Has a Media Agent

Symptom

A file-level restore fails when restoring from an IntelliSnap backup to a destination client that has a media agent.

Cause

When mounting the virtual machine, the restore operation tries to use the media agent on the destination client rather than the media agent on the source client, and the mount fails.

Resolution

  1. Initiate the restore.
  2. During the restore operation, select the content to be restored and the destination client.
  3. On the Restore Options dialog, click Advanced, then click the Data Path tab.
  4. In the Use MediaAgent field, select the media agent for the source client.
  5. In the Use Proxy field, select the source proxy.
  6. Complete the restore.

When the source media agent is used, the mount succeeds and the file-level restore completes successfully.

Virtual machine client names are getting created with '_1' appended to the original client name

Symptom

When viewing virtual machines in the Client Computers list, you may see duplicated client names (for example, <ClientName> and <ClientName>_1).

Cause

Virtual machine information is added to the database during the discovery phase of a backup. If information changes, a new client is discovered during the discovery phase.

Making changes to information such as the virtual machine fully qualified domain name (FQDN), the GUID, or the host name can cause this issue.

Resolution

To avoid duplicate client entries caused by different client or host name:

Use the install software option for the client level in the CommCell Console (rather than interactively installing software to the virtual machine Guest Operating System).

To correct existing clients:

If duplicate clients are created with '_1" appended to the original client name, you can perform the following steps to merge the duplicate client back into the original: 

  1. At a command prompt, navigate to the software installation path, log in to the CommServer, and run the following script:

    qoperation execscript -sn QS_SetVMClient -si @sourceClient='<ClientName>_1' -si @destClient='<ClientName>'

    where <ClientName> is the original client name and <ClientName>_1 is the duplicate.

    This script reassigns all backup history from <ClientName>_1 to <ClientName>. This enables you to view backup history, and to generate Job Summary Reports with the Include Protected VMs option enabled.

  2. Remove the duplicate clients:
    1. In the CommCell Console, go to Control Panel | User Preferences.
    2. Click the Client Computer Filter tab.
    3. Select the Show Virtual Server Discovered Clients option.
    4. Delete the duplicate clients from the CommCell Browser.

Failed to start the virtual machine

Symptom

When a virtual machine has been replicated in vSphere and backed up, and a full VM restore is performed from the backup, the following status message might be displayed in vCenter:

Failed to start the virtual machine.

Cause

If the Power ON Virtual Machine After Restore option is selected when performing a full VM restore, VMware attempts to power on the restored VM before disabling replication.

Resolution

Clear the Power ON Virtual Machine After Restore option when initiating the restore. VMware automatically disables replication when the restore is completed, and you can power on the virtual machine manually.

Unable to browse files on snapshot for Windows 2008 R2 virtual machine - Disk:[<Name>] filtered during snap protect operation

Symptom

A user is unable to browse files on a snapshot for a Windows 2008 R2 virtual machine (ESXi or ESX 4.1 and higher).

The following message appears in the cvd.log file:

Disk:[<Name>] filtered during snap protect operation

Cause

File-level browse of a virtual machine snapshot fails if the page files for the VM are filtered out. The virtual machine snapshot cannot be mounted because it needs the page file for the VM. The page file is unavailable because it resides on a datastore that is filtered for backup.

This issue occurs when the disk.EnableUUID attribute is set to true for the virtual machine. The disk.EnableUUID attribute enables application-level quiescing. If the UUID is not enabled, VMware performs file-system consistent quiescing.

Resolution

During the restore, file-level browsing succeeds if the user selects a MediaAgent that has the Virtual Server Agent installed and has access to the datastore that contains the page files. On the Advanced Restore Options dialog, go to the Data Path tab to specify a MediaAgent.

To resolve this issue, set the disk.EnableUUID attribute to false and run the IntelliSnap backup again on the virtual machines where page files were filtered.

To modify the UUID setting in vSphere 5.1:

  1. Select the VM and power it off.
  2. On the Summary tab, click Edit Settings.
  3. On the Virtual Machine Properties dialog, go to the Options tab.
  4. Select the General field under Advanced.
  5. Click the Configuration Parameters button.
  6. Enter the disk.EnableUUID attribute and set the value to false.

As long as there is not a backup copy or auxiliary copy in progress, users should be able to browse files from the VM snapshot.

Disabling the UUID attribute does not affect applications that do not use Volume Shadow Copy Services (VSS), such as Microsoft SQL, Microsoft Exchange, or Active Directory.

Additional Information

See the following articles:

Cannot restore files from a Windows 2012 virtual machine using deduplication

Symptom

When restoring from a backup of a Windows 2012 virtual machine that has deduplication enabled, a file-level restore completes successfully but only creates stub files.

Cause

File-level restores are not supported for deduplicated volumes from a Windows 2012 VM.

Resolution

To retrieve files from a backup for a Windows 2012 VM using deduplication, restore the disk that contains the file.

Alternatively, you can install a local file system agent on the Windows 2012 VM to enable file-level restores.

Backup Copy fails with mount errors: "Unable to mount the volumes."

Symptom

When mounting a snapshot to an existing datastore for a Backup Copy job, the mount operation fails with the following error:

Unable to mount the volumes.

Cause

When mounting a snapshot to an existing datastore, the string '_gx_backup', the job ID. and the archive file ID are added to the datastore name.

If the combined name is more than 42 characters, the mount operation fails.

Resolution

Ensure that the combined name is less than 42 characters. In most cases, if the datastore name is 20 characters or less, the combined name will be under 42 characters.

Oracle

Failure During Snapprotect Backups

SnapProtect Backup operations fail if the database is in the NOARCHIVELOG  mode. Alter the database to ARCHIVELOG mode and then perform the SnapProtect backups.

SQL>startup mount;

SQL>alter database archivelog;

SQL>alter database open;

Sometimes, the SnapProtect backup operations may fail if you enable the SSKIPBACKUPBROWSE registry key. Ensure to disable it.

SnapProtect Backup Job Runs Indefinitely

SnapProtect Backup operations run indefinitely if the archive log location is full. In such cases, you have to either clear the archive logs to make enough space available or specify a different archive log location.

Oracle RMAN Snap to Tape Incremental Copy Fails on the Proxy Computer

When performing an Oracle RMAN incremental snap to tape copy, note the following:

  1. The Oracle database  installed on the proxy machine should be of the same version as the source. For example if Oracle 10.2.0.4 is installed on source then the proxy also should be of the same version i.e. 10.2.0.4
  2. Oracle user ID/group ID on source and proxy should be the same otherwise the RMAN backup copy will fail with permission issues.
  3. Copy the Oracle parameter file pfile from the source to the proxy (say the instance only as spfile)

    sqlplus <username/password@servicename> as sysdba << EOF

    Create pfile from spfile;

    Exit;

    EOF

    Copy the pfile init<instance name>.ora to the proxy computer and the destination location should be $ORACLE_HOME/dbs/ with oracle user permissions. Also, copy the oracle password file from the source to the proxy computer's $ORACLE_HOME/dbs/ directory.

  4. Create the bdump, udump, adump, cdump and diagnostic_dest directories. Please note that the directories should be in the same location as the source.
  5. Create the directories DB_CREATE_FILE_DEST, LOG_ARCHIVE_DEST and any other directory required for starting the database in NOMOUNT mode. If there are multiple archive destinations, then create the directories for each of the archivelog destinations.
  6. Copy $ORACLE_HOME/network/admin/tnsnames.ora configuration from source to proxy. If the entire content cannot be copied then copy at least the configuration related to catalog connection.
  7. Startup the proxy instance in NOMOUNT mode.
  8. Now configure the proxy Oracle Instance on the CommServer Console and status should be started. Now you are all set to do Oracle RMAN snap to tape incremental

Note that for incremental backup, snap clone will be mounted in the same location as the source mount-point of the source database. For example, if the data mount-point is /netapp/data then on the proxy too it will be mounted in /netapp/data, similarly for the archive log location chosen for the SnapProtect backup. Therefore, ensure that on the proxy this mount-point is free and there is no such directory existing on the proxy computer ( even if it exists it should be empty).

Snap Protect backup copy of an oracle ASM database fails on the Proxy Computer

When performing SnapProtect operations on a backup copy of an Oracle ASM database, note the following:

  1. Run the following command as Oracle ASM user from ASM $ORACLE_HOME/bin to register ASM database to OCR:

    > srvctl status asm

    PRCR-1001 : Resource ora.asm does not exist

  2. Run the following command to add the resource to the configuration, If resource does not exist:

    > srvctl add asm -p $ORACLE_HOME/dbs/init${ORACLE_SID}.ora

    > srvctl status asm

    ASM is not running.

  3. Run the following command to start the ASM instance:

    > srvctl start asm

    or

    > sqlplus "/ as sysasm"

    startup

  4. Run the following command to verify the Status:

    > srvctl status asm

  5. Now, you will see the following message:

    ASM is running on <proxy>

Snap Protect backup copy on proxy fails

Sometimes, the Backup copy on proxy fails with the following error:

ORA-7217 sltln: environment variable cannot be evaluated.

Example:

If RMAN configuration parameters contain $s as shown below:

RMAN> show all;

RMAN configuration parameters for database with db_unique_name CVLT are:

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 0 DAYS;

CONFIGURE BACKUP OPTIMIZATION ON;

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

CONFIGURE CONTROLFILE AUTOBACKUP OFF;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '$ORACLE_BKUP/$ORACLE_SID/controlfile%F.f';

CONFIGURE DEVICE TYPE DISK PARALLELISM 2 BACKUP TYPE TO COMPRESSED BACKUPSET;

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '$ORACLE_BKUP/$ORACLE_SID/%d_df_%t_b%s_p%p.rmf' MAXPIECESIZE 2000 M;

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

CONFIGURE ENCRYPTION FOR DATABASE OFF; # default

CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default

CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default

CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '$ORACLE_BKUP/$ORACLE_SID/snapcf_CVLT.f';

ORA-7217 sltln: environment variable cannot be evaluated

Perform one of the the following steps to resolve this issue:

Sometimes, the Backup copy on proxy fails with the following error even though the control file copy is cataloged into recovery catalog:

RMAN-03002: failure of backup command at 04/11/2012 13:44:03

RMAN-06004: ORACLE error from recovery catalog database: RMAN-20220: control file copy not found in the recovery catalog

RMAN-06090: error while looking up control file copy: +DATA/backup.ctl.galaxy

RMAN>

Perform the following to resolve this failure:

Sometimes the Snap Protect operation and a backup copy on proxy for ASM database will fail with the following errors:

For Snap:

Error Code: [19:1335]

Description: Oracle Backup [GetASMLogDisks Failed.]

For Backup copy:

Error Code: [19:1335]

Description: Oracle Backup [Mounting snap or renaming ASM DiskGroup operation failed with an error. Please check the logs for more details.]

30156 f48b7410 04/18 13:00:37 97550 OraObject::GetOraMode() - oraMode = SHUTDOWN.

30156 f48b7410 04/18 13:00:37 97550 OraObject::GetOraMode() - oraMode = SHUTDOWN: return Error.

30156 f48b7410 04/18 13:00:37 97550 OraInfoBase::GetInfo() - CheckOraMode() failed: oraError=301989906

30156 f48b7410 04/18 13:00:37 97550 ASMSnapUtil::runSqlWithScript() - Failed while getting the Oracle version

30156 f48b7410 04/18 13:00:37 97550 ASMSnapUtil::runSqlWithScript() - Writing into file [@/opt/calypso/Base/Temp/tmp_asm_30156.sql] sql = [select 'U,'|| state from v$asm_diskgroup where name = 'DATADG1'
/
]
30156 f48b7410 04/18 13:00:37 97550 ASMSnapUtil::runSqlWithScript() - Executing SQL select 'U,'|| state from v$asm_diskgroup where name = 'DATADG1'
/
failed with an error Database is in SHUTDOWN mode
30156 f48b7410 04/18 13:00:37 97550 ASMSnapUtil::isASMDiskGroupMounted() - Failed while executing the sqlscript [select 'U,'|| state from v$asm_diskgroup where name = 'DATADG1'
/
] output = []
30156 f48b7410 04/18 13:00:37 97550 ASMDiskGroup::renameASMDiskGroup() - Child change user=oracle, gid=501, uid=501
30156 f48b7410 04/18 13:00:37 97550 ClOraSnapAgent::RenameAndMountASMDiskGroup() - Successfully Renamed ASM DISK GROUPS
30156 f48b7410 04/18 13:00:37 97550 OraObject::GetOraMode() - strictSID = 0
30156 f48b7410 04/18 13:00:37 97550 OraChildProcess::SetPostForkParam() - Parent path = /oracle11gr2/product/11.2.0/dbhome_1/bin/sqlplus
30156 f48b7410 04/18 13:00:37 97550 OraChildProcess::SetPostForkParam() - Parent oraUser = oracle
 

Perform the following to resolve this failure:

  1. Log in to the CommCell Console.
  2. Verify the Oracle +ASM instance status. The status should be in started mode.
  3. Resume the Snap protect operation or the backup copy job that you need to perform.

Latency occurs for releasing filedescriptors by ASM instance during dismounting of ASM diskgroups

On Oracle version 11.2.02, there is a latency for releasing filedescriptors by ASM instance during dismounting of ASM diskgroups.

Apply the following patch on Oracle version 11.2.02 to resolve the latency issue:

Patch:11666137

https://updates.oracle.com/download/11666137.html

Snap Protect backup copy of an oracle ASM database fails if you perform a SnapProtect operation without disabling the Snap Integrity for persistent snap engines

if you perform a SnapProtect operation without disabling the Snap Integrity for persistent snap engines, the following error is displayed:

19935 b7f476d0 03/01 12:20:03 11972 ASMDiskGroup::mountASMDisk() - Failed while excuting sql [alter system set asm_diskstring='/ora_snap*/asm*','/ora_snap*/*'

/

alter diskgroup DATA mount

/

] output = [ SQL*Plus: Release 11.2.0.1.0 Production on Thu Mar 1 12:20:03 2012,Copyright (c) 1982, 2009, Oracle. All rights reserved.,SQL> SQL> SQL> SQL> Connected.,SQL> SQL> SQL> SQL> SQL> SQL> SQL> ,System altered.,alter diskgroup DATA mount,ERROR at line 1:,ORA-15032: not all alterations performed,ORA-15017: diskgroup "DATA" cannot be mounted,ORA-15063: ASM discovered an insufficient number of disks for diskgroup "DATA",SQL> SQL> Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production,With the Automatic Storage Management option,]

19935 b7f476d0 03/01 12:20:03 11972 ASMDiskGroup::mountASMDisk() - One of the diskgroups could not be mounted

19935 b7f476d0 03/01 12:20:03 11972 ClOraSnapAgent::RenameAndMountASMDiskGroup() - mountASMDiskGroup failed

Perform the following steps to resolve this issue:

  1. Mount the snaps from the CommCell console (List Snaps-->Mount) on Proxy and then use the following command:

    /opt/calypso/Base/diskgroup_rename.pl -y <original source diskgroup name> <mounted disk path>

    For example, if snap is mounted on /tmp and the original diskgroup name is DATA01, then perform the following command:

    [oracle@Hindu ~]$ /opt/calypso/Base/diskgroup_rename.pl -y DATA01 /tmp/volume_1335990104/DATA01

    renaming disks to: DATA01

    current name for /tmp/volume_1335990104/DATA01: DS2995770

    new name for /tmp/volume_1335990104/DATA01: DATA01

  2. Unmount the Snap. Perform the same for all the snaps in that SnapProtect operation.

If a block track change file exists, The RMAN backup copy operation on a proxy using sRMANDATAFILECopy registry key is failing

The RMAN backup copy operation using sRMANDATAFILECOPY registry key will fail on proxy, if a block track change file exists for the source database.

You should manually create the block track change file in the same location as source on proxy and resume the backup copy operation.

System is displaying Volume Operation in Progress error for backup copy

If you see Volume Operation in Progress error for backup copy, then on the proxy computer configure either the count of the retries for mounting the snapshots or the interval between two retries for mounting the snapshots.

Follow the steps given below to configure the number of retries for mounting the snapshots:
  1. From the CommCell Browser, navigate to Client Computers.
  2. Right-click the <Client>, and then click Properties.
  3. Click the Registry Key Settings tab.
  4. Click Add.
  5. In the Name box, type nSnapMountingRetryCount.
  6. In the Location box, select or type MediaAgent from the list.
  7. In the Type box, select Value.
  8. In the Value box, type the value and then click OK.

Follow the steps given below to configure the time interval between two retries for mounting the snapshots:
  1. From the CommCell Browser, navigate to Client Computers.
  2. Right-click the <Client>, and then click Properties.
  3. Click the Registry Key Settings tab.
  4. Click Add.
  5. In the Name box, type nSnapMountingRetryInterval.
  6. In the Location box, select or type MediaAgent from the list.
  7. In the Type box, select Value.
  8. In the Value box, type the value and then click OK.

System is displaying ORA-01145: offline immediate disallowed unless media recovery enabled error when recovering the no archivelog database

When you see ORA-01145: offline immediate disallowed unless media recovery enabled error when recovering the no archivelog database, verify whether the catalog is in sync with the database. If the catalog is not in sync with the database, perform a resync.

System is displaying ORA-01031: INSUFFICIENT PRIVILEGES ON THE PROXY

During the proxy setup the following error may occur after the Oracle password file is copied over the proxy

SQL> conn sys/<password>@orcl as sysdba;
ERROR:
ORA-01031: insufficient privileges

The listener uses the dynamic service information about the database and instance before using statically configured information in the listener.ora file. Configuration of static service information is necessary if you require remote database startup from a tool other than Oracle Enterprise Manager, or you have Oracle Database releases earlier than Oracle8i.
Also please note that the SID_NAME is case sensitive. Listener.ora file on proxy
Cause:

SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(ORACLE_HOME=/u01/app/oracle/rdbms/11.2.0.3/dbhome_1)
(SID_NAME=prd1)
)
(SID_DESC=
(ORACLE_HOME=/u01/app/oracle/rdbms/11.2.0.3/dbhome_1)
(SID_NAME=orcl)
)
)
 

Solution:

SID_LIST_LISTENER=
(SID_LIST=
(SID_DESC=
(ORACLE_HOME=/u01/app/oracle/rdbms/11.2.0.3/dbhome_1)
(SID_NAME=PRD1)
)
(SID_DESC=
(ORACLE_HOME=/u01/app/oracle/rdbms/11.2.0.3/dbhome_1)
(SID_NAME=ORCL)
)
)
 

Verification:

SQL> conn sys@ORCL as sysdba
Enter password:
Connected.

Separate MediaAgents for Primary and Snap Backup Copies is not Supported

Separate MediaAgents for Primary and Snap Backup Copies is not supported for SnapProtect operations. The backup copy operation fails in such configurations.

CATALOG Errors During Snapprotect Backup

During SnapProtect backup job, you may notice the following catalog errors:

File Name: /opt/calypso/MediaAgent/SnapVolumeMounts/SnapMnt_1_2_26099/oradata/ONLINE/dbconf.cfg

RMAN-07517: Reason: The file header is corrupted

File Name: /opt/calypso/MediaAgent/SnapVolumeMounts/SnapMnt_1_2_26099/oradata/ONLINE/initONLINE.ora

RMAN-07517: Reason: The file header is corrupted

File Name: /opt/calypso/MediaAgent/SnapVolumeMounts/SnapMnt_1_2_26099/oradata/ONLINE/spfileONLINE.ora

RMAN-07518: Reason: Foreign database file DBID: 0 Database Name:

File Name: /opt/calypso/MediaAgent/SnapVolumeMounts/SnapMnt_1_2_26099/oradata/ONLINE/GalaxyControlFile.Conf

RMAN-07517: Reason: The file header is corrupted

These error messages can be ignored. As part of the backup job, files such as spfile, pfile and backup controlfiles are copied to the archive log location. Oracle does not recognize these files as archive log files and hence displays the error messages. 

restore error on linux client when switch database mode is enabled

When restoring Oracle database on Linux clients, if the Switch database mode for restore option is selected to keep database in correct mode during restore, the database may not restart after switching the database mode. Also, the restore operation may fail with the following error message.

RMAN Script execution failed with error [RMAN-04014: startup failed: ORA-27137: unable to allocate large pages to create a shared memory segment]. Please check the Logs for more details.

This issue occurs if the oracle user has a higher ulimit configuration than the root user. To resolve this issue, apply the ulimit value of Oracle user for the restore using the following steps:

  1. From the CommCell Browser, navigate to Client Computers.
  2. Right-click the <Client>, and then click Properties.
  3. Click the Registry Key Settings tab.
  4. Click Add.
  5. In the Name box, type OracleUser.
  6. In the Location box, select or type OracleAgent from the list.
  7. In the Type box, select Value.
  8. In the Value box, type the Oracle user name (eg., oracle) and then click OK.
  9. Click OK.
  10. Restart Calypso Services on the client.

SAP for Oracle

When you perform SnapProtect backup operation, snaps are performed twice on sapbackup directory, dbs folder etc. However, there is a limitation with Hitachi Data System (HDS). You can only create 3 S-VOL for a given P-VOL when you are using HDS shadow image snap engine.  If we have the entire SAPDATA_HOME on a single volume, all the 3 available S-VOL's may be exhausted.

Hence, you need to perform the following for SAP HDS:

Separate MediaAgents for Primary and Snap Backup Copies is not Supported

Separate MediaAgents for Primary and Snap Backup Copies is not supported for SnapProtect operations. The backup copy operation fails in such configurations.

NAS

SnapVault/SnapMirror Copies are not Created when Backing up vFiler Data

When you configure a physical file server (vfiler0) as a NAS client and define vFiler volumes in the subclient content, auxiliary copy operations will fail to create the SnapVault/SnapMirror copies. You can resolve this issue by configuring each vFiler as a NAS client. During the client configuration, ensure not to include the vFiler root volume in the subclient content. You can also perform mount and revert operations with the snapshot.

I cannot Restore from a Snapshot After Selecting to Skip the Indexing Phase During Backup

Restore operations from a snapshot are not supported if you selected the Skip Catalog phase for SnapProtect option in the Advanced Backup Options dialog box during backup. To restore your backed up data, you must create a backup copy as explained in the Snap Movement to Media procedure and restore your data from the backup copy.

Restore from SnapVault/SnapMirror copies fails with an error indicating the file server is not a NAS client

Restore operations will fail with the following error code if the file server used to backup Vault or Mirror copies is not added as a NAS client:

[39:279] The host <file_server_name> could not be found in the list of NAS Clients. Please add this host as NAS Client.

To resolve this issue, add the file server as a NAS client as well as any other NAS storage device used to back up secondary storage data.

Virtual Server (Hyper-V)

SnapProtect Backup for Online Virtual Machines in Hyper-V Clusters Fails

You can resolve this issue by temporarily suspending the virtual machine during the SnapProtect operation.

While performing a restore operation, the MediaAgent does not have access to the storage device

If the storage policy uses a Media Agent that does not have access to the storage device where the snapshot was created, an additional step is required while selecting the options in the Restore Options for all selected items window.

Virtual Machines Restored from SnapProtect are not powered on automatically

The virtual machine may have been in a running state during the SnapProtect backup. Consequently, the virtual machine is restored in a saved state. To resolve this issue:

  1. Right-click the virtual machine in the Hyper-V Manager.
  2. Click Delete Saved State.

File-Level Restore Fails

The restore operation fails when you are restoring files or folders from a Disk Level backup. The restore will fail if the Enable Granular Recovery option is not selected before performing the backup or the Granular Recovery operation fails.

In such scenario, you can use following procedure to restore files and folders from a disk level backup:

  1. Mount the snapshot that contains the data which you want to restore. For more information, refer to Mount Snapshots.
  2. Browse the Destination Path which you selected while mounting the snapshot and locate the VHD file for the disk which contains the required files and folder.
  3. Use the DiskManager to mount the VHD file on any Windows server. A new drive will be created on the Windows server.
  4. Browse the files and folder on this drive and copy the required files and folders to a desired destination.

Cannot restore files from a Windows 2012 virtual machine using deduplication

Symptom

When restoring from a backup of a Windows 2012 virtual machine that has deduplication enabled, a file-level restore completes successfully but only creates stub files.

Cause

File-level restores are not supported for deduplicated volumes from a Windows 2012 VM.

Resolution

To retrieve files from a backup for a Windows 2012 VM using deduplication, restore the disk that contains the file.

Alternatively, you can install a local file system agent on the Windows 2012 VM to enable file-level restores.

DB2

Separate MediaAgents for Primary and Snap Backup Copies is not Supported

Separate MediaAgents for Primary and Snap Backup Copies is not supported for SnapProtect operations. The backup copy operation fails in such configurations.

Unix File System

Failure during mount of second logical volume having the first logical volume already mounted

You have two logical volumes on the same physical volume group. After performing a SnapProtect backup on a subclient which has both logical volumes as content, you proceed to mount each logical volume. After successfully mounting the first volume, an error will be displayed while trying to mount the second one saying the mount operation failed during the volume group recreation. Although the mount operation was not successful, the second logical volume will show as mounted in the Snaps created during SnapProtect operation window of the CommCell Console. In this scenario, proceed to unmount the second logical volume.

To avoid this issue on future mount operations, it is recommended to mount one of the logical volumes, and not both.

ioscan error on an IA64 machine running HP-UX 11.23

When running a SnapProtect backup on an IA64 machine running HP-UX 11.23, the below ioscan error in the logs can be safely ignored.

5774 16 02/14 14:14:57 ##### UXScsi::scanAgile() - "/usr/sbin/ioscan -kFnN" failed: ioscan: illegal option -- N

SnapProtect failure at the vgimport phase on an IA64 machine running HP-UX

On an IA64 machine running HP-UX, SnapProtect job may fail at the vgimport phase with an error message if the maximum number of volume groups allowed on the machine is exhausted. For example,

<Failure during recreate VG. Error [Failed import: vgimport -v -m /opt/calypso/Base/Temp/vg_test_1360887863.map /dev/vg_test_1360887863 /dev/dsk/c20t0d2 14672 Error: vgimport: Cannot open the control file "/dev/vg_test_1360887863/group":

In such cases, use the following steps to increase the maximum number of volume groups and resume the job:

  1. Check the maxvgs parameter using query:

    kctune -v maxvgs

  2. Check the maximum minor number, represented as NN, in the output below using the following command. For example,

    ls -l /dev/vg_test_1360887863
    crw-r----- 1 root dba 128 <0xNN0000> Dec 17 16:00 group

  3. If the maximum value of the minor number determined in the previous step is equal to the maxvgs parameter then modify it to accommodate more volume groups. For example,

    kctune maxvgs=50

  4. Reboot the machine.