topic Re: active bitmap rearrangement in ONTAP Discussions

active bitmap rearrangement

FLAPHEAD_COM — Thu, 05 Jun 2025 06:11:19 GMT

So I am running Exchange JetStress on my Storage System and I am supposed to run:

priv set advanced

wafl scan status

and monitor for it all to be clear. It has been two days now where I see a shed load of volumes all with "active bitmap rearrangement"

It doesnt seems to going anywhere fast.. Anyone got any idea how long this is going to take?

Also if I run

priv set diag

aggr scrub status -v

I see a number of aggr with:

aggr scrub: status of /aggr01_sata/plex0/rg0 :

Current scrub is 25% complete (suspended).

First full scrub not yet completed.

Any thoughts?

Re: active bitmap rearrangement

James_Littlefield — Tue, 29 Jan 2013 13:58:23 GMT

Those active bitmap rearrangement scans are always present and perfectly normal.

Re: active bitmap rearrangement

uptimenow — Sat, 02 Mar 2013 17:07:51 GMT

They are background block reallocation scans that are constantly running on every writable online volume. See this KB for more info on "wafl scan status" output:

https://kb.netapp.com/support/index?page=content&id=3011346