DR procedure for Snapmirror with (CIFS, NFS,iSCSi,FCP)

[vreddypalli]

Hi,

Is there any document from NetApp which clearly defines the steps to be followed when a disaster occurs on the source for all the protocols..?

Please share any URLs or documents.

Thanks in advance.

Regards,

Vijay

[radek_kubka]

Hi Vijay,

IMHO, DR failover is always host & application-specific (with the exception of file shares, where hosts aren't involved).

For CIFS, you can utilise MultiStore DR:

http://now.netapp.com/NOW/knowledge/docs/ontap/rel80/html/ontap/vfiler/GUID-B8F3DFCE-D749-472C-BFB7-0D140B3857EA.html

For VMware, you normally would be looking at SRM:

http://www.netapp.com/templates/mediaView?m=tr-3822.pdf&cc=us&wid=87646022&mid=32231052

Regards,

Radek

[bertaut]

Hello Vijay,

Your question is not very specific. Follow the link below for a list of guides worthy reading to address your question. They are for the ONTAP 8.0.2 release;

http://now.netapp.com/NOW/knowledge/docs/ontap/rel802/

• Data Protection Online Backup and Recovery Guide
• File Access and Protocols Management Guide
• System Administration Guide
• Storage Management Guide

A basic example of process to follow in the event of disaster:

1. Local disaster affecting only one node in a cluster - Takeover of failed node in the cluster takes place, all the CIFS/NFS/ISCSI/FCP data are managed by the other node in the cluster in a nearly seamless fashion (CIFS/NFS data might experience a slight bleep during takeover). Once you address the failure on failed node, initiate giveback.
2. Local disaster affecting both nodes at primary site - Snapmirror should be used in this instance. Break snapmirror relationship, have end-users point CIFS/NFS data to secondary storage devices. For the iSCSI/FCP data, you may need to quiesce application before mounting snapmirrored data or rely on software such as SnapManager.

Going over the guides listed above would be a great start.

Best of luck.

[vreddypalli]

Hi,

Thank you very much for the respone.

We have to submit a DR procedure document to the client running CIFS.  We know the general steps, but customer is looking for some document from netapp.

I have already referred the above documents, there is no example given for a DR setup.

The customer site doesn't have multistore license(no vfilers).

Regards,

Vijay

[aborzenkov]

DR involves really far more than just storage failover. So it would be misleading for a storage vendor to claim it offers complete DR setup procedure. Such document belongs to a project and is usually done by company that implements project (or by customer itself).

We had several DR projects and each one was different and accompanied by custom tailored documentation.

[bertaut]

It goes without saying that any DR scenario involves far more than just the storage failover; the guides provided were as I stated in my previous post a great start. Any complete DR would require careful planning and synchronization from the Storage, Networking, Application, VM, end-users teams etc... The DR SOE will differ from one environment to another - the example provided above is merely an example of steps performed from the storage perspective in the event of DR.

Regards.