Debugging of falconstor virtualtape Library

Debugging of falconstor virtualtape Library

When connecting to the virtual tape library, the server management end always displays the server is busy, and then prompts that the connection fails. 1) If you suspect that the network connection causes an error, ping the address of the virtual tape library and find that the connection is normal and try again. The same error is returned. It is suspected that the gateway cannot be connected because it has closed some ports and is directly connected to the virtual tape library and the server management end. The same error is reported. 2. If you suspect that the user has permissions, you cannot connect to the database. (root cannot log on to the database.) create a new user CC with a password of 111111 and connect to the virtual tape library. The same error is reported. 3) If you suspect that the configuration of the virtual tape library is not saved, restart the virtual tape library incorrectly and check the network conditions. Try again, and an error is still reported. 4) I have tried it all. Is it because the client software version is inconsistent with the virtual tape library version? Uninstall the original version 4.5 and install the virtual tape library version 5.0. Everything is normal.

In summary, this virtual tape library requires the client software version to be consistent with its server version.

2. installation process of virtual tape library: 1. create virtul tape library. <virtual library for IBM utrium 3> 2. create virtual tape <specify the tape size and compression mode> 3. create a San client to enable the inventory card of the virtual database to specify the WWN Number of the memory card of the management server of the virtual database in target mode. Specify the one-to-one correspondence between the memory card of the virtual database and the memory card of the Management Server. 4. A tape drive is found on the management server.

Detailed procedure of virtual tape library configuration 1. standard VTL configuration in the standard VTL configuration, the backup software manages all tapes-virtual and physical-by treating the virtual tape library as though it were just another standalone tape library attached to the backup server. to copy data from virtual to physical tapes, the backup software's tape copy function is utilized. during the Standard Virtual tape library backup process, the backup software controls the virtual tape library and the actual physical tape library. It seems that the virtual tape library is another independent tape library. Copy data from a virtual tape library to a physical tape library. The tape copy function of the backup software will be used. In this configuration, the backup software runs on an existing backup server or on the VTL appliance itself (with the hosted backup option ). the standard VTL configuration is ideal for organizations that already have a backup process in place with which they are comfortable but which is not meeting all of their backup objectives. adding a VTL appliance as another tape library allows you to easily Increase your parallel backup streams and take advantage of VTL's rapid data recovery without having to alter your current configuration. with the backup application managing the entire backup process, virtual tapes and physical tapes are seen in the same way: a virtual tape is just another tape. in this configuration, the backup software works on the backup server or VTL server (the host backup option ). The standard VTL configuration is suitable for environments with backup services. In this configuration, the virtual tape library is a physical tape library, but its backup and restoration speed is much faster than the physical tape library. With the standard VTL configuration, backups to virtual tapes occur quickly. then, at a later time, the backup server can copy the data to physical tapes without impacting the production environment. because the backup server performs the tape copying function in addition to backups additional overhead can be incurred by the backup server. therefore, it is best to perform tape copying at off-peak Hours. When backing up a physical tape library, the backup server uses the tape copy function to back up data between the virtual tape library and the physical tape library. Therefore, it is best to back up this backup during off-peak hours. While VTL natively accelerates backup from the backup server to virtual tape, data transfer between application servers and the backup application can be accelerated by hosting a backup application on the VTL appliance itself. this shortens the data path between the application server and the backup application/server and therefore enhances backup performance.

 

 

 

 

Note: In the standard configuration, the backup server regards the virtual tape library as a tape library and directly backs up the data to the virtual tape library. the backup server backs up data to a real tape library and uses the backup function of other software on the backup server.

2. advanced VTL configuration in the advanced VTL configuration, the backup software manages backups to the virtual tape library while the VTL appliance controls the export of data from virtual tapes to physical tapes. VTL dramatically accelerates backups by acting as a defacto cache to your physical tape library and enables data to be moved to physical tapes as a background process without impacting production servers. this is an innovative approach to backup that addresses the limitations of conventional tape backup.

In advanced configuration, the backup software controls the virtual tape library, while the application on the virtual tape library controls the backup from the virtual tape library to the tape library. VTL will vigorously accelerate the backup process. During the backup process from the backup server to the virtual tape library, VTL plays a cache role. In this way, the backup process from the virtual database to the actual physical database is a background process without affecting the production server. Moreover, since VTL manages the export of data from virtual to physical tapes, there is no additional overhead for the backup server. as in the standard VTL configuration, the backup software runs on an existing backup server or on the VTL appliance itself (with the hosted backup option ). with the advanced VTL configuration, backups to virtual tapes occur very quickly. then, at a later time, when y Ou are done using a given tape, you can export data to physical tape for offsite vaulting or disaster recovery without impacting the production environment. VTL can also be set up in auto archive mode so that after each backup to virtual tape completes, data is automatically exported to physical tape can be set to archive mode. After each data backup is made to a virtual tape library, the data is automatically exported to the physical tape library.

The advanced VTL configuration requires you to set up the initial physical tape library emulation from within the VTL console so that there is a mapping, with identical barcodes, between virtual and physical tapes. this enables the backup software to keep track of backup tapes and prevents tapes from being created that wocould be unidentifiable by the backup software. in advanced virtual tape library configuration, you need to make a m on the VTL control end. Apping. That is, the same bar code is used on the virtual and physical tape libraries. This will enable the backup software to keep track of the physical tape library and prevent the creation of tapes that cannot be recognized by the backup software. Whenever data is written to physical tape, the virtual tape can then be deleted or the copy can be left on the virtual tape for rapid recovery. the physical tape will always have the same barcode as its virtual tape counterpart. this gives you the flexibility to easily restore from either virtual or physical tape. when data is written to a physical tape library, the virtual tape can be deleted or saved as a backup and then restored. This gives you a flexible choice, choose to recover from the physical or virtual tape library. When it comes time to restore, the backup software identifies the barcode of the tape containing the needed data. if the data still resides on virtual tape (it was never exported or it was exported with the virtual tape left intact), it can be restored very quickly because it is being read from disk. if the data is only on physical tape, the tape must first be re-imported into VTL with a few simpl E keystrokes in The VTL console so that the backup software can access it and restore in its usual manner. during recovery, the backup software usually finds the tape barcode to restore the corresponding data. If the recovered data is still on the virtual tape library, the data will be quickly restored to the north. If the data is on the tape, it needs to be first imported into the virtual tape library and then restored from the virtual tape library (in VTL advanced mode)

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