mein Problem währt seit mittlerweile drei Jahren. Leider war ich zum Zeitpunkt des Daten-Super-GAUs blauäugig und vertraute auf die Failsafe™ BeyondRAID™ Technologie, die vollmundig Datensicherheit suggerierte. Nun gut. Zum Kern des Problems: Ich besitze ein Drobo der zweiten Generation, bestückt mit 4 x 2TB Festplatten, partitioniert mit HFS+ zu je 2 x 4 TB - soviel zu den Eckdaten.
Partition 1 hat sich am Weihnachtsabend 2010 verabschiedet und es folgten zahlreiche (non-destruktive) Reparaturversuche, den Hinweisen des Herstellers folgend. Da waren: DiskWarrior (ohne Anwendung des Vorschlags den Partitiontable neu zu schreiben), Data Rescue (ein Teil der Daten wurde recovered, ein großer Teil fehlt), Stellar PHOENIX (fand auch einiges, aber vieles nicht), etc. pp.. Die Partition lässt sich nicht mounten, die Bash liefert mir erst mal soviel:
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Sysops-Mac-Pro:testdisk-6.14 sysop$ diskutil list
...
/dev/disk5
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *4.4 TB disk5
1: EFI EFI 209.7 MB disk5s1
2: Apple_HFS 4.4 TB disk5s2
/dev/disk6
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *4.4 TB disk6
1: Apple_HFS D 4.4 TB disk6s1
Eine weitere Inspektion via Bash liefert mir diese Infos zur betroffenen Partition
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Sysops-Mac-Pro:testdisk-6.14 sysop$ diskutil info /dev/disk5s2
Device Identifier: disk5s2
Device Node: /dev/disk5s2
Part of Whole: disk5
Device / Media Name: Apple_HFS_Untitled_1
Volume Name:
Escaped with Unicode:
Mounted: No
File System Personality: HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended
Journal: Unknown (not mounted)
Owners: Disabled
Partition Type: Apple_HFS
OS Can Be Installed: No
Media Type: Generic
Protocol: USB
SMART Status: Not Supported
Total Size: 4.4 TB (4397702537216 Bytes) (exactly 8589262768 512-Byte-Units)
Volume Free Space: 0 B (0 Bytes) (exactly 0 512-Byte-Units)
Device Block Size: 512 Bytes
Read-Only Media: No
Read-Only Volume: Not applicable (not mounted)
Ejectable: Yes
Whole: No
Internal: No
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TestDisk 6.14, Data Recovery Utility, July 2013
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
TestDisk is free software, and
comes with ABSOLUTELY NO WARRANTY.
Select a media (use Arrow keys, then press Enter):
Disk /dev/disk0 - 1000 GB / 931 GiB (RO)
Disk /dev/disk1 - 2000 GB / 1863 GiB (RO)
Disk /dev/disk2 - 1000 GB / 931 GiB (RO)
Disk /dev/disk3 - 1500 GB / 1397 GiB (RO)
>Disk /dev/disk5 - 4398 GB / 4096 GiB
Disk /dev/disk6 - 4398 GB / 4096 GiB (RO)
Disk /dev/rdisk0 - 1000 GB / 931 GiB (RO)
Disk /dev/rdisk1 - 2000 GB / 1863 GiB (RO)
Disk /dev/rdisk2 - 1000 GB / 931 GiB (RO)
Disk /dev/rdisk3 - 1500 GB / 1397 GiB (RO)
Disk /dev/rdisk4 - 1999 GB / 1862 GiB
Disk /dev/rdisk5 - 4398 GB / 4096 GiB
Disk /dev/rdisk6 - 4398 GB / 4096 GiB (RO)
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Disk /dev/disk5 - 4398 GB / 4096 GiB
Please select the partition table type, press Enter when done.
[Intel ] Intel/PC partition
>[EFI GPT] EFI GPT partition map (Mac i386, some x86_64...)
[Humax ] Humax partition table
[Mac ] Apple partition map
[None ] Non partitioned media
[Sun ] Sun Solaris partition
[XBox ] XBox partition
[Return ] Return to disk selection
Hint: EFI GPT partition table type has been detected.
Note: Do NOT select 'None' for media with only a single partition. It's very
rare for a drive to be 'Non-partitioned'.
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Disk /dev/disk5 - 4398 GB / 4096 GiB
1 sectors - sector size=512
>[ Analyse ] Analyse current partition structure and search for lost partitions
[ Advanced ] Filesystem Utils
[ Geometry ] Change disk geometry
[ Options ] Modify options
[ Quit ] Return to disk selection
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Disk /dev/disk5 - 4398 GB / 4096 GiB - 1 sectors
Current partition structure:
Partition Start End Size in sectors
1 P EFI System 40 409639 409600 [EFI System Partition]
2 P Mac HFS 409640 8589672407 8589262768 [Apple_HFS_Untitled_1]
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Disk /dev/disk5 - 4398 GB / 4096 GiB - 1 sectors
Analyse cylinder 4294737920/0: 4272029696%
check_FAT: Unusual media descriptor (0xf0!=0xf8)
Warning: number of heads/cylinder mismatches 16 (FAT) != 1 (HD)
Warning: number of sectors per track mismatches 32 (FAT) != 1 (HD)
EFI System 40 409639 409600 [EFI]
Mac HFS 409640 8589672407 8589262768
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Disk /dev/disk5 - 4398 GB / 4096 GiB - 1 sectors
Partition Start End Size in sectors
>P EFI System 40 409639 409600 [EFI]
P Mac HFS 409640 8589672407 8589262768
Structure: Ok. Use Up/Down Arrow keys to select partition.
Use Left/Right Arrow keys to CHANGE partition characteristics:
P=Primary D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
Enter: to continue
HFS+ blocksize=4096, 4397 GB / 4095 GiB
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Disk /dev/disk5 - 4398 GB / 4096 GiB - 1 sectors
Partition Start End Size in sectors
1 P EFI System 40 409639 409600 [EFI]
2 P Mac HFS 409640 8589672407 8589262768
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Disk /dev/disk5 - 4398 GB / 4096 GiB - 1 sectors
Partition Start End Size in sectors
1 P EFI System 40 409639 409600 [EFI System Partition]
> 2 P Mac HFS 409640 8589672407 8589262768 [Apple_HFS_Untitled_1]
[ Type ] >[Superblock] [Image Creation] [ Quit ]
Locate HFS/HFS+ backup volume header
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Disk /dev/disk5 - 4398 GB / 4096 GiB - 1 sectors
Partition Start End Size in sectors
2 P Mac HFS 409640 8589672407 8589262768 [Apple_HFS_Untitled_1]
Volume header
HFS+ OK
Backup volume header
HFS+ OK
Sectors are not identical.
Vielen Dank für jegliche Unterstützung meines Projekts, dass sich bald zum vierten Male jährt...
Enemy