log device: LDEV daddr: XXX length: XXX
cycle: 1 version: <VERN> lsn: 1,0 tail_lsn: 1,0
-length of Log Record: 20 prev offset: -1 num ops: 1
+length of Log Record: <LEN> prev offset: -1 num ops: 1
uuid: <UUID> format: <FORMAT>
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Oper (0): tid: b0c0d0d0 len: 8 clientid: LOG flags: UNMOUNT