Date: SEP 2010
Product & Version:
OS Version: all
Module & Version: VMware 1.1, 1.2
Application version: VMware
Symptoms:
COS based VMware backup fails with channel error as seen below:
From binary log:
Error 2010/08/27 14:57:58 1063 Media S-EU-PAS01BKP01 S-EU-PAS01BKP01 1-0.2.0 (HP Ultrium 4-SCSI): had channel error
From subtext of binary log:
NET :00932 93 0 135758 Connection down
DATA :00932 103 12 135758 Error reading buffer contents
DATA :00932 216 0 135758 DataChannelGetReceiveBuffer (END)
MEDWRITE:00932 190 1 135758 Device write data in: FAILURE
DEVMGR :00932 812 0 135758 DevMgrChannelError() - FALSE = bChannelError, FALSE = bMediaError, FALSE = bAbort, FALSE = bStop
Looking at plugin trace we see the following at the end of the netvault VMware trace with no error.
4 0 095206.289120 VM 'Virtual server name’
1 VMWVIM :17388 4 0 095206.316417 Logged in to server localhost successfully
1 VMWVIM :17388 5 0 095206.316441 Login success=TRUE
1 VMWUTIL :17388 6 0 095206.316448 Login success=TRUE
Cause:
The Virtual server has been moved to a different esx server or been deleted from disk.
1/ Move the virtual server back to the esx server
2/ Stop using cos base backups and use a VCB server that would identify the movement of the virtual server to different esx server and back it up from the other esx server.
3/ upgrade to VMware 2.0 using VADP, but be aware cos based backups are no longer supported on this version
Explanation:
The VMware plugin is unable to access the backup information of the virtual server from the requested esx server.
Prepared by: Richard Downes
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