After power troubleshooting I get this message:
Reason: 5 (Input/output error).
Cannot open the disk '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/tory/tory-000002.vmdk' or one of the snapshot disks it depends on.
How I can fix it? Creating new disk from old is failed (with vmkfstools), parentCID and CID value is correct.
What else can I do?
Input/output error (327689)
FYI: it happened because of a problem with electricity (Faulty UPS).
Further Detail
Jun 03 12:26:59.808: vmx| DISK: OPEN scsi0:0 '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002.vmdk' persistent R[]
Jun 03 12:26:59.824: vmx| DISKLIB-VMFS : "/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002-delta.vmdk" : open successful (10) size = 26742988800, hd = 16581470. Type 8
Jun 03 12:26:59.824: vmx| DISKLIB-DSCPTR: Opened [0]: "ctory-000002-delta.vmdk" (0xa)
Jun 03 12:26:59.824: vmx| DISKLIB-LINK : Opened '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002.vmdk' (0xa): vmfsSparse, 104857600 sectors / 50 GB.
Jun 03 12:26:59.827: vmx| DISKLIB-VMFS : "/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-flat.vmdk" : open successful (14) size = 53687091200, hd = 4490092. Type 3
Jun 03 12:26:59.827: vmx| DISKLIB-DSCPTR: Opened [0]: "ctory-flat.vmdk" (0xe)
Jun 03 12:26:59.827: vmx| DISKLIB-LINK : Opened '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory.vmdk' (0xe): vmfs, 104857600 sectors / 50 GB.
Jun 03 12:26:59.827: vmx| DISKLIB-CHAINESX : ChainESXOpenSubChain: numLinks = 2, numSubChains = 1
Jun 03 12:26:59.884: vmx| DISKLIB-CHAINESX : ChainESXOpenSubChainNode: can't create deltadisk node 746e6f09-ctory-000002-delta.vmdk failed with error Input/output error (0xbad000a, I/O error)
Jun 03 12:26:59.884: vmx| DISKLIB-CHAIN : "/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002.vmdk" : failed to open (Input/output error).
Jun 03 12:26:59.884: vmx| DISKLIB-VMFS : "/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002-delta.vmdk" : closed.
Jun 03 12:26:59.885: vmx| DISKLIB-VMFS : "/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-flat.vmdk" : closed.
Jun 03 12:26:59.885: vmx| DISKLIB-LIB : Failed to open '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002.vmdk' with flags 0xa Input/output error (327689).
Jun 03 12:26:59.885: vmx| DISK: Cannot open disk "/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002.vmdk": Input/output error (327689).
Jun 03 12:26:59.885: vmx| Msg_Post: Error
Jun 03 12:26:59.886: vmx| [msg.disk.noBackEnd] Cannot open the disk '/vmfs/volumes/4d78ed66-47c6d550-de03-0017a4770002/ctory/ctory-000002.vmdk' or one of the snapshot disks it depends on.
Jun 03 12:26:59.886: vmx| [msg.disk.configureDiskError] Reason: Input/output error.----------------------------------------
Jun 03 12:26:59.896: vmx| Module DiskEarly power on failed.