syounger Nov 11 12:13PM 2017
I am able to backup all my virtual machines except one. Every time the backup is attempted it backs up for a while and then this:
./vertical backup -t CORE --parallel AD-DNS2 --email 2017-11-11 16:49:53.830743 INFO PROGRAM_VERSION Vertical Backup 1.1.2 2017-11-11 16:49:54.724024 INFO LICENSE_INFO This license is only valid for home and non-production use 2017-11-11 16:49:54.724101 INFO LICENSE_INFO Licensed to Cluster-SM; expires on 2018-10-20 2017-11-11 16:49:55.520253 INFO STORAGE_CREATE Storage set to sftp://email@example.com/volume1/SFTP/Vertical_Backup 2017-11-11 16:49:55.591781 INFO SNAPSHOT_GETALLVM Listing all virtual machines 2017-11-11 16:49:56.036929 INFO BACKUP_VM Backing up AD-DNS2, id: 6, vmx path: /vmfs/volumes/V-Storage/AD-DNS2_1/AD-DNS2.vmx, guest os: windows8Server64Guest 2017-11-11 16:49:56.154121 INFO BACKUP_NEW No previous backup found 2017-11-11 16:49:56.683831 INFO SNAPSHOT_POWER Virtual machine AD-DNS2 is powered on 2017-11-11 16:49:56.683951 INFO SNAPSHOT_REMOVE Removing all snapshots of AD-DNS2 2017-11-11 16:50:13.594343 INFO SNAPSHOT_CREATE Creating a new virtual machine snapshot for AD-DNS2 2017-11-11 16:51:41.854242 INFO BACKUP_UPLOAD Uploaded file /vmfs/volumes/V-Storage/AD-DNS2_1/AD-DNS2.vmdk 2017-11-11 16:51:41.867915 INFO BACKUP_UPLOAD Uploading file AD-DNS2-flat.vmdk 2017-11-11 17:03:31.105152 INFO BACKUP_UPLOAD Uploaded file AD-DNS2-flat.vmdk 57.75MB/s 00:11:49 2017-11-11 17:03:31.172490 INFO BACKUP_UPLOAD Uploaded file AD-DNS2.vmx 2017-11-11 17:03:36.732154 WARNING SFTP_RETRY SSH exception: Server connection dropped: ; reconnecting after 3.0 seconds 2017-11-11 17:03:40.539512 WARNING SFTP_RETRY SSH exception: Server connection dropped: ; reconnecting after 4.4 seconds 2017-11-11 17:03:46.625163 WARNING SFTP_RETRY SSH exception: Server connection dropped: ; reconnecting after 21.9 seconds 2017-11-11 17:04:09.195372 WARNING SFTP_RETRY SSH exception: Server connection dropped: ; reconnecting after 133.7 seconds 2017-11-11 17:06:23.719133 WARNING SFTP_RETRY SSH exception: Server connection dropped: ; reconnecting after 317.0 seconds 2017-11-11 17:11:40.738395 ERROR SFTP_RETRY Maximum number of retries attempted in uploadFile 2017-11-11 17:11:40.738710 INFO SNAPSHOT_REMOVE Removing all snapshots of AD-DNS2
This ONLY happens on this VM. I'm lost. All backups have the same host and same destination shared storage.
gchen Nov 11 3:00PM 2017
I bet the sftp server is a Synology NAS. They appear to have difficulty taking paths that are longer than a certain value and forcefully close connections. It happens to this VM because it probably has longer name than other VMs.
syounger Nov 11 6:51PM 2017
It is a synology. The VM name is AD-DNS2. I am able to successfully backup vcsa-psc though. Is there a workaround to get this to function?
gchen Nov 11 11:25PM 2017
Mount the Synology NAS as an NFS drive should work (and maybe faster than SFTP).
syounger Nov 14 3:42PM 2017
That worked! Mounting the datastore to the ESXi hosts did it and it is a faster transfer. Thanks!