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Title
After upgrading to VMware 11.4 HotAdd or SAN backups no longer work on CentOS 6.7 -
Description
After upgrading to VMware 11.4 HotAdd backups no longer work on CentOS 6.7
vmware backups are falling back to nbd mode
Customer EnvironmentNetVault 11.4, CentOS 6.7VMWare Plugin - 11.4 -
Cause
Binary log extract:Job Message 2017/10/17 11:07:27 423 Data Plugin [NetvaultProxy] [lDatastore] Disk '[VM]' opened in 'nbd' modeJob Message 2017/10/18 12:41:03 423 Data Plugin [NetvaultProxy] [Datastore] Disk '[VM] x.vmdk' opened in 'nbd' mode----------
Trace log
6 VOLUME :06068 65 0 021901.326079 VolEnumChildren has recieved 'eVolFSReturnFailed' from file system parser017-10-24T09:07:58.514+02:00| vthread-4| I125: VixDiskLib: Attempting to locate advanced transport module in "/usr/netvault/bin/vmware".2017-10-24T09:07:58.514+02:00| vthread-4| I125: VixDiskLib: Could not load default plugins from /usr/netvault/bin/vmware/lib64/libdiskLibPlugin.so: Cannot open library: /lib64/libz.so.1: version `ZLIB_1.2.3.3' not found (required by /usr/netvault/bin/vmware/lib64/./libvmacore.so).2017-10-24T09:07:58.514+02:00| vthread-4| I130: VixDiskLib: Available transport modes from DiskLib: file:nbdssl:nbd.2017-10-24T09:07:58.514+02:00| vthread-4| I125: VixDiskLib: Advanced transport module not loaded.2017-10-24T09:07:58.514+02:00| vthread-4| I125: VixDiskLib: Using transport modes from DiskLib: file:nbdssl:nbd.==============
CentOS 6.7 uses zlib version 1.2.3 but VMWare plug-in 11.4 ships with VDDK 6.5 which requires zlib 1.2.7.
Hence VMware plug-in fails to load /lib64/libz.so.1.So the advanced transport module is not being loaded. -
Resolution
Upgrade CentOS to Version 7.xPlease note there is no official support for CentOS using VDDK 6.0 or 6.5 by VMWare.Please refer the VDDK release notes for supported backup proxy OS for VDDK 6.0 and 6.5 respectively.
VDDK Release note documents links:
https://www.vmware.com/support/developer/vddk/vddk-600-releasenotes.html
http://pubs.vmware.com/Release_Notes/en/developer/vddk/65/vsphere-vddk-65-release-notes.htmlAlternative solution:
1. Download VDDK 6.0 from the VMware website.
VMware-vix-disklib-6.5.3-8315684.x86_64.tar.gz
2.Copy the downloaded GZIP file to the /tmp directory on the appliance.3.Decompress the GZIP archive file.
4. Prepare the /usr/lib/vmware-vix-disklib directory (mkdir)
reboot
5. Under the decompressed archive file in the /tmp directory, there are several sub-directories.
Copy the following directories and their contents into the /usr/lib/vmware-vix-disklib directory:
bin64
include
lib64
6.
cp /usr/lib/vmware-vix-disklib/lib64/libz.so.1 /usr/netvault/bin/vmware/lib64/
ln -s /usr/lib/vmware-vix-disklib/lib64/libvixDiskLib.so /usr/lib/libvixDiskLib.so
ln -s /usr/lib/vmware-vix-disklib/lib64/libvixDiskLib.so.6 /usr/lib/libvixDiskLib.so.6 -
Defect ID
DNVMWARE-1777