Forum Discussion
Hi Peter,
We had a terrible time upgrading our appliances from 8.0 to 8.1.1 due to the conversion. My experiences were as follows:
- As long as the conversion process was in its initial stages <20-40%, backups would perform very poorly. This is partially due to the fact that fingerprints for incoming data needs to be converted on the fly. The jobs would sometimes complete, but more often than not they would not finish.
- We had a lot of VMware Accelerator jobs, which were failing in a large scale. This was caused by the issue above, which overloaded spoold and forced it to restart.
Our actions to mitigate these problems were:
- Disable any secondary SLP processing until conversion finished.
- Disable Accelerator for all VMware jobs, as the Accelerator proccesing is happening on the backup host (media server) as opposed to the client.
- Set the conversion mode to Fast, and let it run around the clock. Please note that if the spoold proccess crashes and restarts, then the conversion will default to normal again.
We have an MSDP pool of 186GB, which finished after less than two weeks.
I hope this might help you, its not an easy upgrade, but after doing the above actions we managed to get through it relatively unscathed.
Caspar
Hi
Thanks for replying.
Yes, we have alot of accelator jobs too. I will try do disable it and se how it goes.
I have already change Secondary SLP processing and conversion mode to Fast.
I have installed a EEB patch that I have received from Veritas, hope that fix something.
https://www.veritas.com/support/en_US/article.100043461
Peter
- CasparThorup6 years agoLevel 3
You're welcome :)
Please note that it will only be VMware (perhaps Hyper-V also, not sure) type Accelerator jobs where you will need to disable it. Disabling Accelerator on a normal MS-Windows or Standard policy will not have any effect as far as I see it as their processing happens on the client machines.
I wrote a basic script to mail me the dataconversion progress every hour, including the current conversion mode and the status for spoold. If I could see that the conversion mode was Normal and spoold had restarted since the last time I knew that action was required. I can see you are primarily running Windows, but you can probably convert it if you wish to use it.
Caspar
- dmanrobin6 years agoLevel 1
Hi Gents,
I am expierencing the exact same issue you have described below after upgrading from 7.7.1 to 8.1.1 ( NBU 8.1.1 running on Windows Server 2012r2)
I have one master and 2 media servers in two different sites each media server hosts a msdp 64tb in size.
I do have a support ticket open with Veritas but I firmly believe they are stringing me along hoping the conversion just finishes. Truly disgusted with this whole upgrade, if I could I would dump Veritas and go with another solution. I opened tickets with the Netbackup team, InfoScale team and my storage vendor ( since Veritas tried to suggest the issue could be with my storage array that is hosting all my msdp volumes).
Have tried some of the same tweaks and suggested changes you both have mentioned. Turning on fast mode and some other tweaks. Installing EEB patch (did not help).
I am approaching week 4 now and the conversion is still ongoing and I have backup and replication jobs failing daily.
Unfortuanately, no other choice but to let this conversion finish. When that happens is anyones guess.
Hope you had better luck
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