New Blog

Dear reader,

To work more inline with my twitter activities and to open my blog for more interessting stuff (not just Veeam related), I am blogging only on the http://andyandthevms.com/ blog from now.

If I will write some updates at individual posts (e.g. Exchange Backup stuff) I will add an warning message with a link to the article on this blog.

So do not hesitate to check out my new blog under http://andyandthevms.com

Thanks for all the Feedback and support

Andy

Montag, 24. Februar 2014

Exchange (DAG) VMware Backups: Updated list of tips and tricks for Veeam Backup & Replication

Please find updated Version here:
http://neufert-at-veeam.blogspot.de/2014/03/exchange-dag-vmware-backups-updated.html

Prioritisation of Veeam Backup & Replication Proxy Modes from my field experience.

Hi everybody,
just want to share with you a short list of Veeam Backup & Replication Proxy modes, because I got so many questions about it in the past.

Backup from VMware Block Storage:
From most recommended (up) to lowest priority (down)
Direct SAN Mode FibreChannel and Storage Snapshots (HP 3PAR StoreServe) on a physical Server
Direct SAN Mode iSCSI with Storage Snapshots (HP Lefthand StoreVirtual incl. VSA) on a physical Server
Direct SAN Mode iSCSI with Storage Snapshots (HP Lefthand StoreVirtual incl. VSA) on a VM
Direct SAN Mode FibreChannel/Shared SAS on a physical Server
Direct SAN 10GbE iSCSI on a physical Server
Direct SAN 10GbE iSCSI on a virtual Server
NBD (Network Mode) 10GbE (VMkernel Interfaces on 10GbE)
Direct SAN 1GbE iSCSI
HotAdd (Virtual Appliance Mode)
NBD (Network Mode) 1GbE (VMkernel Interfaces on 1GbE)

VMKernel Interfaces are limited to nearly ~40% of the interface speed for backup from VMware. So 10GbE is good while 1GbE Interfaces are too slow.
All Backup Modes including HotAdd work pretty stable with Backup & Replication , but VMware HotAdd is not so matured from VMware side then the other modes. So we try to use others backup modes in the field if possible. Workaround for some problems can be to roll out a Virtual Proxy in HotAdd Mode on each Host and set a registry key in Backup & Replication that force the backup job to use a proxy on same host as the VM that is processed.


Backup from NFS VMware Storage:
From most recommended (up) to lowest priority (down)
NBD (Network Mode) 10GbE (VMkernel Interfaces on 10GbE)
HotAdd (Virtual Appliance Mode)
NBD (Network Mode) 1GbE (VMkernel Interfaces on 1GbE)

VMKernel Interfaces are limited to nearly ~40% of the interface speed for backup from VMware. So 10GbE is good while 1GbE Interfaces are too slow.
All Backup Modes including HotAdd work pretty stable with Backup & Replication , but VMware HotAdd is not so matured from VMware side then the other modes. So we try to use others backup modes in the field if possible. Workaround for some problems can be to roll out a Virtual Proxy in HotAdd Mode on each Host and set a registry key in Backup & Replication that force the backup job to use a proxy on same host as the VM that is processed.


Veeam Backup & Replication Proxy Mode Autodetection process works like this:
From most recommended (up) to lowest priority (down)
Direct SAN Mode
HotAdd (Virtual Appliance Mode)
NBD (Netowork Mode)

So if you want to use 10GbE NBD Mode instead of HotAdd as default, you have to select it manually at the Veeam Backup & Replication - Backup Infrastructure - Proxy settings.



VM Restore (classic):
From most recommended (up) to lowest priority (down)
NBD (Network Mode) 10GbE (VMkernel Interfaces on 10GbE)
HotAdd (Virtual Appliance Mode)
NBD (Network Mode) 1GbE (VMkernel Interfaces on 1GbE)

By design HotAdd Restore produces much more I/O on Target Storage (~3x).
DirectSAN mode for restore is possible at VMware API but not used from Veeam for performance and stability (and therefore safety) reasons.

Instant VM Recovery by Veeam vPower NFS (datastore):
From most recommended (up) to lowest priority (down)
NBD (Network Mode) 10GbE (VMkernel Interfaces on 10GbE)
NBD (Network Mode) 1GbE (VMkernel Interfaces on 1GbE)



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