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NetApp Solutions SAP

Block integrity check

Contributors kevin-hoke netapp-mschoen
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SAP recommends combining storage-based Snapshot backups with a weekly file-based backup to execute a block integrity check. SnapCenter supports the execution of a block integrity check by using a policy in which file-based backup is selected as the backup type.

When scheduling backups using this policy, SnapCenter creates a standard SAP HANA file backup for the system and tenant databases.

SnapCenter does not display the block integrity check in the same manner as Snapshot copy-based backups. Instead, the summary card shows the number of file-based backups and the status of the previous backup.

Figure showing input/output dialog or representing written content

A block integrity check backup cannot be deleted using the SnapCenter UI, but it can be deleted using PowerShell commands.

PS C:\Users\scadmin> Get-SmBackupReport -Resource SS1
SmBackupId                : 9
SmJobId                   : 42
StartDateTime             : 11/19/2019 8:26:32 AM
EndDateTime               : 11/19/2019 8:27:33 AM
Duration                  : 00:01:00.7652030
CreatedDateTime           : 11/19/2019 8:27:24 AM
Status                    : Completed
ProtectionGroupName       : hana-1_sapcc_stl_netapp_com_hana_MDC_SS1
SmProtectionGroupId       : 1
PolicyName                : BlockIntegrityCheck
SmPolicyId                : 5
BackupName                : SnapCenter_BlockIntegrityCheck_11-19-2019_08.26.33.2913
VerificationStatus        : NotApplicable
VerificationStatuses      :
SmJobError                :
BackupType                : SCC_BACKUP
CatalogingStatus          : NotApplicable
CatalogingStatuses        :
ReportDataCreatedDateTime :
PluginCode                : SCC
PluginName                : hana
JobTypeId                 : 0
JobHost                   :
 
PS C:\Users\scadmin> Remove-SmBackup -BackupIds 9
 
Remove-SmBackup
Are you sure want to remove the backup(s).
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): y
 
 
BackupResult : {}
Result       : SMCoreContracts.SMResult
TotalCount   : 0
DisplayCount : 0
Context      :
Job          : SMCoreContracts.SmJob
 
 
 
PS C:\Users\scadmin>

The SAP HANA backup catalog shows entries for both the system and the tenant databases. The following figure shows a SnapCenter block integrity check in the backup catalog of the system database.

Figure showing input/output dialog or representing written content

A successful block integrity check creates standard SAP HANA data backup files. SnapCenter uses the backup path that has been configured in the HANA database for file-based data backup operations.

hana-1:/usr/sap/SS1/HDB00/backup/data # ls -al *
DB_SS1:
total 1710840
drwxr-xr-- 2 ss1adm sapsys       4096 Nov 28 10:25 .
drwxr-xr-- 4 ss1adm sapsys       4096 Nov 19 05:11 ..
-rw-r----- 1 ss1adm sapsys     155648 Nov 23 08:46 SnapCenter_SnapCenter_BlockIntegrityCheck_Weekly_11-23-2019_06.00.07.8397_databackup_0_1
-rw-r----- 1 ss1adm sapsys   83894272 Nov 23 08:46 SnapCenter_SnapCenter_BlockIntegrityCheck_Weekly_11-23-2019_06.00.07.8397_databackup_2_1
-rw-r----- 1 ss1adm sapsys 1660952576 Nov 23 08:46 SnapCenter_SnapCenter_BlockIntegrityCheck_Weekly_11-23-2019_06.00.07.8397_databackup_3_1
SYSTEMDB:
total 1546340
drwxr-xr-- 2 ss1adm sapsys       4096 Nov 28 10:24 .
drwxr-xr-- 4 ss1adm sapsys       4096 Nov 19 05:11 ..
-rw-r----- 1 ss1adm sapsys     159744 Nov 23 08:46 SnapCenter_SnapCenter_BlockIntegrityCheck_Weekly_11-23-2019_06.00.07.8397_databackup_0_1
-rw-r----- 1 ss1adm sapsys 1577066496 Nov 23 08:46 SnapCenter_SnapCenter_BlockIntegrityCheck_Weekly_11-23-2019_06.00.07.8397_databackup_1_1