Sun StorageTek[TM] Availability Suite: Remote Mirror Fails with rdc_resume_state: Bad magic message
(Doc ID 1002286.1)
Last updated on JULY 31, 2019
Applies to:Sun Storage Network Data Replicator (SNDR) - Version 3.0.1 and later
Sun Storage Availability Suite - Version 4.0 and later
During a system reboot, Availability Suite Remote Mirror Software reports the message:
rdc: [ID xxxx kern.warning] WARNING: rdc_free_bitmap: Read header failed
and consequently reports the following message as the system is coming up:
Dec 4 19:03:39 myhost rdc: [ID 766594 kern.warning] WARNING: rdc_resume_state: Bad magic in /dev/vx/rdsk/mydg/my_bitmap
This leads to a bitmap failed or BF state in the output of sndrstat, dsstat, sndradm -P, and sndradm -p, on the
host where the messages appear.
The following is a sample of the sndradm -P output:
/dev/vx/rdsk/asdbdg/FS_fmacread <- myhost:/dev/vx/rdsk/mydg/myvol autosync: off, max q writes: 4194304, max q fbas: 16384, mode: async, state: bitmap failed
System is rebooted using the "reboot" command (not recommended) or an unexpected reboot occurred
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