Backup and Recovery Goals
-
@DustinB3403 said:
@Dashrender and @scottalanmiller how should I backup my VM's then? What is the restore process for if a VM takes a dive and I have no full to recover from?
The backup process has to remain someone current.
You have a full ready to go that is older, say monthly, and you apply the delta to it. Instead of incrementals, move to differentials. All you need is the full plus the differential. Inrementals mean you that you need EVERY incremental to do a restore. Differentials mean you only need the Full plus the latest Diff.
-
@scottalanmiller said:
@DustinB3403 said:
@Dashrender and @scottalanmiller how should I backup my VM's then? What is the restore process for if a VM takes a dive and I have no full to recover from?
The backup process has to remain someone current.
You have a full ready to go that is older, say monthly, and you apply the delta to it. Instead of incrementals, move to differentials. All you need is the full plus the differential. Inrementals mean you that you need EVERY incremental to do a restore. Differentials mean you only need the Full plus the latest Diff.
But you didn't mention that StorageCraft is what has that full. I say this just to be clear.
@scottalanmiller Does Unitrends ever take a new full backup as a matter of standard practice? (I'm not considering issues where there might be corruption or something that causes you to need another full backup)
-
@Dashrender said:
@scottalanmiller Does Unitrends ever take a new full backup as a matter of standard practice? (I'm not considering issues where there might be corruption or something that causes you to need another full backup)
Yes, regularly.
-
@scottalanmiller said:
@DustinB3403 said:
@Dashrender and @scottalanmiller how should I backup my VM's then? What is the restore process for if a VM takes a dive and I have no full to recover from?
The backup process has to remain someone current.
You have a full ready to go that is older, say monthly, and you apply the delta to it. Instead of incrementals, move to differentials. All you need is the full plus the differential. Inrementals mean you that you need EVERY incremental to do a restore. Differentials mean you only need the Full plus the latest Diff.
I can still run this full monthly with a tool like NAUBackup and a Crontab job. That is where I'm considering the fulls from coming from.
The incremental backups would be built from Storage Craft and for file level restore.
-
@DustinB3403 said:
@scottalanmiller said:
@DustinB3403 said:
@Dashrender and @scottalanmiller how should I backup my VM's then? What is the restore process for if a VM takes a dive and I have no full to recover from?
The backup process has to remain someone current.
You have a full ready to go that is older, say monthly, and you apply the delta to it. Instead of incrementals, move to differentials. All you need is the full plus the differential. Inrementals mean you that you need EVERY incremental to do a restore. Differentials mean you only need the Full plus the latest Diff.
I can still run this full monthly with a tool like NAUBackup and a Crontab job. That is where I'm considering the fulls from coming from.
The incremental backups would be built from Storage Craft and for file level restore.
But does breaking this appart from StorageCraft actually make sense? Assuming you're a Unitrends shop you typically wouldn't do that. You'd have Unitrends do everything.
-
Can Unitrends build a complete backup that can be imported to a Xenserver should the Guest VM get corrected?
-
And does it have to run on a separate server to create that backup file?
-
@DustinB3403 said:
Can Unitrends build a complete backup that can be imported to a Xenserver should the Guest VM get corrected?
Not sure what you mean. Unitrends handles every aspect of XenServer.
-
@DustinB3403 said:
And does it have to run on a separate server to create that backup file?
It would run as a VM. VMs have no means of knowing if they are local or not.
-
@Dashrender said:
But does breaking this appart from StorageCraft actually make sense? Assuming you're a Unitrends shop you typically wouldn't do that. You'd have Unitrends do everything.
i agree. Find one tool that does the job and stick with it. Trying to use two separate tools is making this incredibly complex and complexity is just another term for risky.
-
I'm just a bit confused on how it would work, as I haven't use StorageCraft on XenServer, and I'm thinking of it just like "trying to format a windows partition
that you're using to run the command from" -
Or I guess the better way to explain it.
How do I restore from Storage Craft if I want to simply dump a corrupt VM? Does it build a .xva, .ova, or vhd backup?
-
It depends on how the backups work. If the backup is a client piece inside the OS, then there are a few options for restoring the system, but if the backup works with the VM platform, then it can probably just restore whatever file format Xen uses.
As for the OS type, the two options I know of are - you recreate the VM in the VM software, then install Windows, then install the client software for the backup solution, then restore the data.
option two, you create the VM just like above, but this time you boot it from an ISO, or PXE, etc and connect to the backup solution, choose your restore point and it's pushed to the server. When it's done, reboot and you're done. -
@DustinB3403 said:
Or I guess the better way to explain it.
How do I restore from Storage Craft if I want to simply dump a corrupt VM? Does it build a .xva, .ova, or vhd backup?
Normal way that you restore physical systems: https://www.storagecraft.com/support/book/shadowprotect-user-guide/restoring-volume
-
@Dashrender said:
As for the OS type, the two options I know of are - you recreate the VM in the VM software, then install Windows, then install the client software for the backup solution, then restore the data.
option two, you create the VM just like above, but this time you boot it from an ISO, or PXE, etc and connect to the backup solution, choose your restore point and it's pushed to the server. When it's done, reboot and you're done.It has a rescue boot image used to rebuild the system image.
-
@Dashrender said:
...but if the backup works with the VM platform, then it can probably just restore whatever file format Xen uses.
Unitrends is the only backup software that does that for XenServer other than just taking your own image. We've never found another tool that talks to XS.
-
@scottalanmiller said:
@Dashrender said:
...but if the backup works with the VM platform, then it can probably just restore whatever file format Xen uses.
Unitrends is the only backup software that does that for XenServer other than just taking your own image. We've never found another tool that talks to XS.
And this is why I think Xen is a bad choice for Dustin to stay with. He can get a better solution by moving to Hyper-V, it's almost assured that StorageCraft can restore direct to VHD - but if it can't.. ok fine, stay with Xen.
-
@Dashrender said:
And this is why I think Xen is a bad choice for Dustin to stay with. He can get a better solution by moving to Hyper-V, it's almost assured that StorageCraft can restore direct to VHD - but if it can't.. ok fine, stay with Xen.
No, why would you assume that? StorageCraft is the same on every platform. It definitely does nothing special with HyperV.
-
@scottalanmiller said:
@Dashrender said:
And this is why I think Xen is a bad choice for Dustin to stay with. He can get a better solution by moving to Hyper-V, it's almost assured that StorageCraft can restore direct to VHD - but if it can't.. ok fine, stay with Xen.
No, why would you assume that? StorageCraft is the same on every platform. It definitely does nothing special with HyperV.
OK - Most VM specific products work at the VM level (I have no clue if SC does or not). I would think that would be the best place to work from for a complete recovery solution.
Are you saying SC doesn't backup the VHD?
in thinking about this - perhaps I'm giving more credit than is really due to most VM backup solutions... I'll stand corrected if that's the case.
-
@Dashrender said:
OK - Most VM specific products work at the VM level (I have no clue if SC does or not). I would think that would be the best place to work from for a complete recovery solution.
Are you saying SC doesn't backup the VHD?
Correct. It is an agent backup from inside the VM.
