При выполнении скрипта появляется периодически (в 2 из 3 случаях) ошибка, у одной и той-же машины
/vmfs/volumes/52a5bb43-6f8bdc72-0f3c-90e2ba4011bb/ghettoVCB # cat ghettoVCB-backup-1401051601.log
Logging output to "/tmp/ghettoVCB-2014-05-25_21-00-01.log" ...
2014-05-25 21:00:02 -- info: ============================== ghettoVCB LOG START ==============================
2014-05-25 21:00:02 -- info: CONFIG - VERSION = 2011_11_19_1
2014-05-25 21:00:02 -- info: CONFIG - GHETTOVCB_PID = 1929913
2014-05-25 21:00:02 -- info: CONFIG - VM_BACKUP_VOLUME = /vmfs/volumes/backup
2014-05-25 21:00:02 -- info: CONFIG - VM_BACKUP_ROTATION_COUNT = 3
2014-05-25 21:00:02 -- info: CONFIG - VM_BACKUP_DIR_NAMING_CONVENTION = 2014-05-25_21-00-01
2014-05-25 21:00:02 -- info: CONFIG - DISK_BACKUP_FORMAT = thin
2014-05-25 21:00:02 -- info: CONFIG - POWER_VM_DOWN_BEFORE_BACKUP = 0
2014-05-25 21:00:02 -- info: CONFIG - ENABLE_HARD_POWER_OFF = 0
2014-05-25 21:00:02 -- info: CONFIG - ITER_TO_WAIT_SHUTDOWN = 3
2014-05-25 21:00:02 -- info: CONFIG - POWER_DOWN_TIMEOUT = 5
2014-05-25 21:00:02 -- info: CONFIG - SNAPSHOT_TIMEOUT = 15
2014-05-25 21:00:02 -- info: CONFIG - LOG_LEVEL = info
2014-05-25 21:00:02 -- info: CONFIG - BACKUP_LOG_OUTPUT = /tmp/ghettoVCB-2014-05-25_21-00-01.log
2014-05-25 21:00:02 -- info: CONFIG - VM_SNAPSHOT_MEMORY = 0
2014-05-25 21:00:02 -- info: CONFIG - VM_SNAPSHOT_QUIESCE = 0
2014-05-25 21:00:02 -- info: CONFIG - VMDK_FILES_TO_BACKUP = all
2014-05-25 21:00:02 -- info: CONFIG - EMAIL_LOG = 0
2014-05-25 21:00:02 -- info:
2014-05-25 21:00:06 -- info: Initiate backup for videoreg
2014-05-25 21:00:06 -- info: Creating Snapshot "ghettoVCB-snapshot-2014-05-25" for videoreg
Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/storage/videoreg_old/videoreg.vmdk'...
Clone: 99% done.
2014-05-25 21:30:14 -- info: Removing snapshot from videoreg ...
2014-05-25 21:30:14 -- info: Backup Duration: 30.13 Minutes
2014-05-25 21:30:14 -- info: WARN: videoreg has some Independent VMDKs that can not be backed up!
2014-05-25 21:30:22 -- info: Initiate backup for win2008srvr2sp1
2014-05-25 21:30:22 -- info: Creating Snapshot "ghettoVCB-snapshot-2014-05-25" for win2008srvr2sp1
Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/storage/win2008srvr2sp1/win2008srvr2sp1_2.vmdk'...
Clone: 34% done.
Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/530cdfe0-13aa5733-30c4-3085a99cc74e/win2008srvr2sp1/win2008srvr2sp1_1.vmdk'...
Clone: 60% done.
Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/storage/win2008srvr2sp1/win2008srvr2sp1.vmdk'...
Clone: 15% done.
2014-05-25 23:33:14 -- info: ERROR: error in backing up of "/vmfs/volumes/storage/win2008srvr2sp1/win2008srvr2sp1.vmdk" for win2008srvr2sp1
2014-05-25 23:33:50 -- info: Removing snapshot from win2008srvr2sp1 ...
2014-05-25 23:33:52 -- info: Backup Duration: 123.50 Minutes
2014-05-25 23:33:52 -- info: ERROR: Unable to backup win2008srvr2sp1 due to error in VMDK backup!
2014-05-25 23:33:56 -- info: Initiate backup for router_pfsense
2014-05-25 23:33:56 -- info: Creating Snapshot "ghettoVCB-snapshot-2014-05-25" for router_pfsense
Destination disk format: VMFS thin-provisioned
Cloning disk '/vmfs/volumes/storage/router_pfsense/router_pfsense.vmdk'...
Clone: 78% done.
2014-05-25 23:34:42 -- info: Removing snapshot from router_pfsense ...
2014-05-25 23:34:43 -- info: Backup Duration: 47 Seconds
2014-05-25 23:34:43 -- info: Successfully completed backup for router_pfsense!
2014-05-25 23:34:46 -- info: ###### Final status: WARNING: All VMs backed up, but some disk(s) failed! ######
2014-05-25 23:34:46 -- info: ============================== ghettoVCB LOG END ================================
Подскажите где может быть проблема ?