We have Exchange CCR cluster on windows 2008 and there are some errors on passive node: 1. ID 2147 MSExchangeRepl There was a problem with 'node1', which is an alternate name for 'NODE1'. The list of aliases is now 'NODE1', and the alias 'was' removed from the list. The specific problem is 'CreateFile(\\NODE1\efaab020-73c8-4618-a8c9-8676801cdeb3$\E020001087A.log) = 2'. 2. ID 522 ESE Microsoft.Exchange.Cluster.ReplayService (2032) Log Verifier e02 61613345: An attempt to open the device name "\\node1\efaab020-73c8-4618-a8c9-8676801cdeb3$" containing "\\node1\efaab020-73c8-4618-a8c9-8676801cdeb3$\" failed with system error 5 (0x00000005): "Access is denied. ". The operation will fail with error -1032 (0xfffffbf8). Replication of storage groups is Healthy, everything looks OK. Are these errors something to wory about? Why they show up? Thank you.