Tar Backup when SAP is started

[Former Member]

Hello All,

Is it possible to take TAR backup of all filesystems when SAP is running.

Normally for taking backup thru TAR, we stop the SAP system, the database and then take an offline TAR backup.

So is Online Tar bacup possible????

Thanks & regards,

Sagar

[nelis]

Hi,

Is it possible to take TAR backup of all filesystems when SAP is running.

It is possible but if you are using a Java AS then there is no guarantee of a full and consistent backup of all system components because a lot of information is only written to the file system when the system is shutdown. See [Backing Up and Restoring AS Java|http://help.sap.com/erp2005_ehp_04/helpdata/EN/4b/d8f23ea4b42e5ae10000000a114084/frameset.htm] for further information.

Nelis

[Former Member]

Hi Rajesh,

Thanks for the quick response.

You mean t say that I would be able to backup /usr/sap filesystems without any issues.

When I backup /oracle filesystems, it would give me an error or will the backup continue.

Thanks in advance

Sagar

[Former Member]

Hi Sagar,

You mean t say that I would be able to backup /usr/sap filesystems without any issues.

Yes !...

When I backup /oracle filesystems, it would give me an error or will the backup continue.

Backup may get complete without any error. But while restoration you will face many problems.

Regards.

Rajesh Narkhede

[Former Member]

Hi,

Sure... You can take TAR backup of application directories.

If you take TAR backup of "database" it will not be consistant as database is getting changed.

Except database you can take TAR backup of other filesystem.

Regards.

Rajesh Narkhede