I cant seem to find these anywhere. (I must be blind...)

What does the folowing log messages mean, and are they harmfull?
[ D(02) : 0167 : 11:28:10 ] NotifyUserOfServerBandwidthEvent

[ W(20) : 0000 : 11:10:11 ] *** Long Running (Multi)Fetch: code = -2001,
elapsed = 31927.6 ***

[ H(07) : 0001 : 11:18:14 ] HDBDaemon just woke up

[ H(07) : 0001 : 11:18:16 ] WAITING((0x7f000000.0x4.0x1d3)): level = RD,
readers = 0, writers = 1

[ T(01) : 0083 : 11:18:19 ] BeginRvmFlush (1, 49596, T)

[ T(01) : 0083 : 11:18:20 ] EndRvmFlush

[ H(07) : 0001 : 11:18:30 ] DataWalk:  Restarting Iterator!!!!  Reset
availability status information.

Thanx
  SysV