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VMware Off Host BAckup Cent OS 4/5

Created: 30 Sep 2012 | 18 comments
vamsivaddi's picture

Can we run VMware Off HOst BAckup on CENT OS 4/5? 

ESXi 4.1

NBU 7.1

Compatible or Not? If Yes kindly share the procedure.

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Marianne's picture

See Appendix D of NBU for VMware Admin Guide  :

 

The SYMCquiesce utility allows NetBackup to quiesce the Linux file system.
Without this utility, NetBackup cannot guarantee that all required data has been
flushed to disk when the snapshot occurs. Any data that has not been flushed to
disk (still in memory) is not included in a snapshot. In that case, the data that is
captured in the snapshot is incomplete.
The SYMCquiesce utility quiesces the Linux file system, to guarantee that all data
has been flushed from memory to disk. Quiescing the file system allows any
pending data changes to finish before the snapshot occurs. The data in the
snapshot is complete.

....

 

Requirements for the SYMCquiesce utility
Note the following requirements:
■ The SYMCquiesce utility supports the following Linux operating systems:
  ■ Red Hat Enterprise Linux version 5.4 and later.
  ■ SUSE Linux Enterprise Server 11 Update 2 and later.
.......

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

vamsivaddi's picture

HI Mariannie,

I dont know much abt Cent OS.

DO i need to install  SYMCquiesce utility for Cent OS  version? 

cat /etc/redhat-release

CentOS release 5 (Final)
 

Thanks & Regards,

Vamsi Krishna

Stuart Green's picture

If you are refering to the part of your backup solution that performs the backup of the snapshotted VM off your VMware datastores..

Can Centos OS perform this role for NetBackup? No.

You require a 

Windows Server OS 

OR

as of 7.5.0.2

SUSE Linux 11 Server 

see here for similar post

https://www-secure.symantec.com/connect/forums/vmware-backup-host-support

Tip: Get overview/document your NBU environment. Run 'nbsu' and review the output.

• If this provides help, please vote or mark appropriate solution.

vamsivaddi's picture

can i backup a cent OS 5 client using VMware Offhost Backup?

IF yes do i need to install any packages?

Thanks & Regards,

Vamsi Krishna

Marianne's picture

We need more information of what exactly you need to do - is CentOS a VM guest that you need to backup up? Or do you want to use it as backup host?

If VM guest that you need to back up, please refer to extract from the manual that I have posted above.

You will see that SYMCquiesce is only supported on Redhat and SUSE.
Because of the binary compatibility with Redhat, you could try to install SYMCquiesce. No guarantees that it will work...

Without SYMCquiesce, you run the risk of inconsistent backup. You will have to choose between VM-type backup and installation of NBU Client in the guest. 

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

vamsivaddi's picture

Cent OS is the Guest OS in VM that need to be backed up..

We have thow VMS running as DNS with Cent OS...

Off- Host BAckup's were working fine for long time but now one of the VM failing with error 156.

WRN - ALL_LOCAL_DRIVES is not frozen, with Status code 156

I just wanted to know whether VM-ware Off host backup's are supported with cent OS or Not.

 

So as i understand i need to install a client to take the backup which is recommended from Symantec...

Thanks & Regards,

Vamsi Krishna

vamsivaddi's picture

Where should i check the compatibility of VMware offhost backup's with Guest OS 

Thanks & Regards,

Vamsi Krishna

Stuart Green's picture

 

NetBackup for VMware supports virtual machine backup and recovery on all guest
operating systems supported by VMware. To checkVMwaresupport for a particular
operating system, consult the VMware Compatibility Guide:
 
 

I recommend you consult this doc now to know where the official statement this taken from:

 

DOCUMENTATION: Support for NetBackup 7.x in virtual environments (updated September 17, 2012).

 

As it says though there are differences in OS for file-level recovery. Might only be able to perform block level recovery - ie the whole VM or increments of VM backup.

Tip: Get overview/document your NBU environment. Run 'nbsu' and review the output.

• If this provides help, please vote or mark appropriate solution.

vamsivaddi's picture

BUt some where i read VMware Offhost backups presently supported only on Windows, RedHat and SUSE Linux VM's?

 

Thanks & Regards,

Vamsi Krishna

Stuart Green's picture

I feel you are confusing terminology here.

If I understand correctly what you are asking..

This can be answered in this screen grab from document I referenced above.

Tip: Get overview/document your NBU environment. Run 'nbsu' and review the output.

• If this provides help, please vote or mark appropriate solution.

vamsivaddi's picture

HI Stuart,

NBU supports all the Guest OS's supported by VMware.

But for VM Snapshot backup (off-host, Flash backup) as i understand from couple of documents it supports Windows, Red Hat and SUSE linux as of now.

Can any one make this clear? 

Thanks & Regards,

Vamsi Krishna

Stuart Green's picture

If you can share the source of these documents that would be great.

Thanks

Tip: Get overview/document your NBU environment. Run 'nbsu' and review the output.

• If this provides help, please vote or mark appropriate solution.

Marianne's picture

I too have quoted from the manual in this post: 

https://www-secure.symantec.com/connect/forums/vmware-host-backup-cent-os-45#comment-7770201

 

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

vamsivaddi's picture

OK let me put it this way...

I wanted to backup a Virtual machine Offhost flash BAckup with guest os as Cent OS 5 version.

NBU 7.1 Environment, ESXi is 4.1

When i am selecting all localdrives for Flash backup policy i am receivig this error.

WRN - ALL_LOCAL_DRIVES is not frozen, with Status code 156

 

Thanks & Regards,

Vamsi Krishna

Yasuhisa Ishikawa's picture

Check this docs.

http://www.symantec.com/docs/HOWTO44492

http://www.symantec.com/docs/HOWTO44427

Are there any error occured on ESX?

Authorized Symantec Consultant(ASC) Data Protection in Tokyo, Japan

vamsivaddi's picture

no error on esxi or vcenter

Thanks & Regards,

Vamsi Krishna

Yasuhisa Ishikawa's picture

So enable debug logging on VMware Backup Host first, and check the points listed in docs.
Also search on Knowledge base with keyword "VMware status 156".

http://www.symantec.com/business/support/index?page=answers&startover=y&language=Change+Support+Language&question_box=VMware+Status+156&product_finder=NetBackup+Enterprise+Server&productselectorkey=15143&myclicker.x=0&myclicker.y=0

Authorized Symantec Consultant(ASC) Data Protection in Tokyo, Japan

Marianne's picture

Please read through my first reply again: https://www-secure.symantec.com/connect/forums/vmware-host-backup-cent-os-45#comment-7770201

You need 'something' to quiesce the filesystem. Activity on filesystem is probably preventing snapshot. 
Can you test a snapshot using VMWare Vsphere client?

We know that SYMCquiesce is only supported with Redhat and SUSE clients, but I have suggested that you try it because of CentOS and Redhat binary compatibility. No gurantees, but I would give it a try...

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links