Flags legend:
S: STALE, registry hasn't seen this in a while. We won't try to read from/write to it.NR: NO_READ, a human has explicitly set the block service to not be read from.NW: NO_WRITE, a human has explicitly set the block service to not be written to.D: DECOMMISSIONED, a human has explicitly marked this block service as decommissioned, it won't be touched from now on.The most common occasion where a human sets block services flags is disk failure, see the docs for more info.