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NAYAB's avatar
NAYAB
Level 4
7 years ago

Backup a VM with disk type RDM

Hi Experts, 

I have a few questions.

I am trying to backup a vm with disk type RDM which is deployed on a ESX may i know how the backup flows ? through Ethernet or FC ?

Two cases

1. Agent Installed directly on Agent &

2. What if i have backup host (ESX or NBU appliance as Backup Host)

Environment:-

Master server 8.0 (VM machine Windows 2016)

Media Server:- NBU 5240 Appliance (MSDP Pool)

Client:- Windows 2016 Hosting SQL (Using RDM type of disks)

Also i would like to know is the restore always happen through ETHERNET ? How can i choose it to run through FC ?

 

Any inputs on service resilency while deploying a Master on VM ? (What if my VM crashed ) Does the VM clone helps to recover ? If yes , to what state ? 

 

Thanks

Nayab,

ESX
NBU Appliance 5240
Netbackup8.0
RDM
VMware
  • Marianne's avatar
    Marianne
    7 years ago

    You cannot perform a VMware type backup with RDM. 

    This is a VMware limitation. You will see in VMware GUI that the snapshot is disabled.

    The only way to backup a VM with RDM is to install NBU client and backup with relevant OS or DB policy.

6 Replies

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  • Marianne's avatar
    Marianne
    Level 6
    7 years ago

    You cannot perform a VMware type backup with RDM. 

    This is a VMware limitation. You will see in VMware GUI that the snapshot is disabled.

    The only way to backup a VM with RDM is to install NBU client and backup with relevant OS or DB policy.

  • traghav86's avatar
    traghav86
    Level 5
    7 years ago

    Hi 

    Also i would like to know is the restore always happen through ETHERNET ? How can i choose it to run through FC ?

    yes if it is a VM, restore always happen through ETHERNET. you cannot setup SAN client for a VM unless if you have vHBA but this is not bestpractice

    • NAYAB's avatar
      NAYAB
      Level 4
      7 years ago

      Hi Rahul, 

      yes if it is a VM, restore always happen through ETHERNET. you cannot setup SAN client for a VM unless if you have vHBA but this is not bestpractice

      But when backup happens through SAN ? why it cannot be vice-versa. I always thought Backup and Restore follows the same flow ? 

      Say i am using VADP to backup my VMDK disk and snapshot is taken at vserver level and data is sent to Media server through FC but when i restore why is it not flowing backup using FC ?

      Thanks, 

      Nayab

  • Dmitry_K's avatar
    Dmitry_K
    Level 4
    7 years ago

    I am trying to backup a vm with disk type RDM which is deployed on a ESX may i know how the backup flows ? through Ethernet or FC ?

    -

    You could use only agent backup (choose Windows or SQL type, not VMware) - type).

    Perhaps for MS SQL (and ony other SQL) would be better, if you use integrated SQL services to backup, and take it into NBU after that, like a file.