Hello, I have a Virtual Machine on ESXi 7.0:
| Guest OS: Microsoft Windows Server 2016 (64-bit) Compatibility: VmHardware.HWVersion.long.vmx-19 VMware Tools: Running, version:11333 (Current) |
It has only one disk on SCSI controller 0:
| Type: Thick Provision Lazy Zeroed Disk File: [d2] 2016/2016.vmdk Disk Mode: Dependent |
quiesced snapshot part
After creating a quiesced snapshot, I found that it had two delta files(aka child disks) which is strange because only one delta file should be generated:
vCenter shows that the virtual machine is now using [d2] 2016/2016-000001.vmdk:
And Managed Object Browser shows that the disk recorded in the snapshot is [d2] 2016/2016-000002.vmdk
Obviously I can't open them READ ONLY through VDDK 7.0.3, NBD transport mode:
| KLog: NBD_ClientOpen: attempting to create connection to vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902 KLog: Setting NFC log level to 1 KLog: Setting NFC log level to 1 KLog: NFC Async IO session is established for '[d2] 2016/2016-000001.vmdk' with log level 1. KLog: Opening file [d2] 2016/2016-000001.vmdk (vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902) KWarning: [NFC ERROR]NfcAioRcvErrorMsg: Error from server: NfcAioProcessOpenFileMsg: Failed to open '[d2] 2016/2016-000001.vmdk': DiskLib error 49: Thin/TBZ/Sparse disks cannot be opened in multiwriter mode KLog: Fail to open file [d2] 2016/2016-000001.vmdk KLog: DISKLIB-DSCPTR: : "vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902" : Failed to open NBD extent. KLog: DISKLIB-LINK : "vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902" : failed to open (Thin/TBZ/Sparse disks cannot be opened in multiwriter mode). KLog: DISKLIB-CHAIN : "vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902" : failed to open (Thin/TBZ/Sparse disks cannot be opened in multiwriter mode). KLog: DISKLIB-LIB : Failed to open 'vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902' with flags 0xe Thin/TBZ/Sparse disks cannot be opened in multiwriter mode (49). KLog: VixDiskLib: Detected DiskLib error 49 (Thin/TBZ/Sparse disks cannot be opened in multiwriter mode). KLog: VixDiskLib: Failed to open disk vpxa-nfc://[d2] 2016/2016-000001.vmdk@192.168.88.230:902!52 26 a2 59 d8 1d 32 3e-af 4e c9 d9 18 f1 5e b5. Error 1 (Unknown error) (DiskLib error 49: Thin/TBZ/Sparse disks cannot be opened in multiwriter mode) at 6469. KLog: VixDiskLib: VixDiskLib_OpenEx: Cannot open disk [d2] 2016/2016-000001.vmdk. Error 1 (Unknown error) (DiskLib error 49: Thin/TBZ/Sparse disks cannot be opened in multiwriter mode) at 7133. KLog: VixDiskLib: VixDiskLib_Open: Cannot open disk [d2] 2016/2016-000001.vmdk. Error 1 (Unknown error) at 7211. Failed to open |
| KLog: VixDiskLib: VixDiskLib_OpenEx: Open a disk. KLog: 2021-11-19T16:19:01.733+08:00 error -[05958] [Originator@6876 sub=vimaccess] GetFileName: Cannot create disk spec for disk [d2] 2016/2016-000002.vmdk. KLog: --> KLog: VixDiskLib: Error occurred when obtaining the file name for [d2] 2016/2016-000002.vmdk. Error 1 (Unknown error) (Cannot create disk spec for disk.) at 3344. KLog: VixDiskLib: VixDiskLib_OpenEx: Cannot open disk [d2] 2016/2016-000002.vmdk. Error 1 (Unknown error) at 7133. KLog: VixDiskLib: VixDiskLib_Open: Cannot open disk [d2] 2016/2016-000002.vmdk. Error 1 (Unknown error) at 7211. Failed to open |
But I CAN open [d2] 2016/2016.vmdk to read, so I backup the whole [d2] 2016/2016.vmdk disk(not just allocated blocks) through VDDK.
Finally, I restored the disk to the virtual machine. And try to use it to start the virtual machine, but the blue screen is directly displayed when starting:
none quiesced snapshot part
So I created a none quiesced snapshot instead. And it has only ONE delta file as expected.
I backup [d2] 2016/2016.vmdk through VDDK 7.0.3 and restore to the virtual machine again. And the operating system can be turned on normally this time.
question
How do I back up this virtual machine with a quiesced snapshot?