Question about auto scale and changing the PG Num

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Hello,
I have an SSD pool that was initially created years ago with 128PG. This
seems to be suboptimal to me. In this pool are 32 OSDs á 1.6TiB. 8 servers
with 4 OSDs each.

ceph osd pool autoscale-status recommends 2048 PGs.

Is it safe to enable the autoscale mode? Is the pool still accessible
during this time? Or should I rather go up step by step, my idea would be
to go first to 512, then 1024 and finally to 2048. I would set the recovery
priority to low at the working hours and default outside that time.
Thank you very much!
Claas
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