Field ms_smo.smo_objsize in metaslab struct is size of data on disk.
I checked the size of metaslabs in memory:
::walk spa | ::walk metaslab | ::print struct metaslab
ms_map.sm_root.avl_numnodes
I got 1GB
But only some metaslabs are loaded:
::walk spa | ::walk metaslab | ::print struct metaslab
ms_map.sm_root.avl_numnodes ! grep "0x" | wc -l
231
from 664 metaslabs. And number of metaslabs is changing very fast.
Is there a way to keep all metaslabs ion RAM ? Is there any limit ?
I encourage other administrators to check "free map space" size.
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