#migration experience nabox 3 to 4

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safe idol
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Does anyone have experience with migrating from nabox 3 to nabox 4? I have 1.6TB of data and it will take a very long time.

dusk pulsar
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How much time are we talking ?

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There might be a way to improve speed with more threads

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And what is struggling during migration ? Is that ram, cpu, disk ?

safe idol
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i have 24gb on nabox 3.5.3 in my test environment (only one poller). the default settings of nabox 4 with 2 cpus and 4gb memory was not enough - cpu was the bottleneck. now it´s a little bit faster with 4 cpus and 8gb memroy, but still to slow for my production environment with 1,6tb of data. this will take a long time to migrate.
test equipment network speed is 10gbit, harddisk is on an AFF A220. production equipment will have 40gbit network and harddisk on AFF A900.

safe idol
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first run 2 cpus and 4gb memory:
VM worker 0:↙ 439835 samples/s
VM worker 1:↙ 435185 samples/s

second run 4 cpus and 8gb memroy:
VM worker 0:↙ 723358 samples/s
VM worker 1:↙ 802062 samples/s

dusk pulsar
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So you could run the migration manually and use more workers maybe.