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I have a Promise NS4300 server which contains 285Gb of user files. The windows protocol died so we could no longer access the hard drive (1 drive, no RAID). The support suggestions from Promise didn't help. Last one was to use a Windows recovery utliity (no suggestions: don't they have one!) to recover the files.
I tried putting the drive in a windows PC but Disk Manager couldn't recognise it. It might be a proprietry partition format.
I have accessed the NAS through Apple Talk on an old OS 9 MAC and can see all the folders and files but need a faster method of recovering the files not involving a USB external drive or the ethernet connection (covered in another post in more detail).
Does anyone know of a utlity or driver that will do the trick and make the NAS disk partition accessible or visible in Windows?
Edited by author: Maybe this will help. I think the NAS box runs on a version of Linux. It was not set up as a RAID since only 1 drive and shown in the NAS network properties as RAID0 I think.
Edit 4/10: I checked the NAS Raid info: It is RAID0 (1). This must be a special case as a RAID recovery utility I ran wouldn't accept a single drive for RAID0. I inserted the NAS drive in a USB enclosure and booted from my Knoppix Live CD. It comes with a raid recovery util. I ran it and it detected it as a Linux file system, SUPERBLOCK Ext2 I think. However it insisted there should be 2 drives for RAID0 so couldn't access or recover the files. As was pointed out, a hardware RAID controller mayb be needed to unscramble the drive so I will try the same thing today in my home PC which has RAID support built-in to the disk controller. If anyone knows of a good RAID file recovery utility please let me know.
Edit 6/10 (further experimentation): Took the NAS HD home and connected to PC by USB. Drive not readable in Windows or Knoppix (LInux). Then mounted drive in PC (SATA). Again not readable in Knoppix File Manager. Knoppix comes with some RAID utilities so tried them. See it as a RAID but will not accept RAID0 with 1 HD only. Booted to XP and downloaded 4 or 5 RAID recovery utils including one suggested here. All of them had the same problem. They recognised the RAID and the Linux Ext2 file system but showed it as RAID1 (which it's not). WHen I tried to set to RAID0 they wouldn't proceed, insisting on a second drive. The problem may be that the NAS drive needs a hardware RAID controller (@Aaron Miller), or that Promise create it as a non standard RAID. When in the NSA box it doesn't display as a single drive as such - it shows as RAID0 but isn't really because RAID0 required 2 drives to stripe. Anyway, I think I've run out of things to try, unless someone has more suggestions? You would really think Promise would have a recovery utility for their NAS boxes. It's so frustrating to know the files are sitting there on the HD in my PC but I can't get at them! Thanks all suggstions! PS: I it worth downloading UBUNTU, would it be any different to Knoppix? Does it come with RAID utils?
Try booting from an Ubuntu Live CD and copy from there? – David – 2013-10-03T20:22:14.757
Wait, so it's RAID 0 across one disk? If so, you may be hosed with respect to reading the disk on another machine; RAID 0 stripe volumes are famously impossible to read with any disk controller that doesn't have the stripe information in its NVRAM. (The filesystem might be e.g. ext4, but the RAID controller plays its own games with the bytes before putting them on the platters, so what's actually on the disk doesn't look anything like ext4.) – Aaron Miller – 2013-10-03T20:28:08.407
@David That doesn't sound good! I'll checkup on what the NAS disk config says tomorrow. I think it was RAID0 and thhere didn't seem to be another category for a single drive except that. I'll try my bootable Linux-on-a-CD tomorrow to see if it can see read the drive. By the way my home PC has a RAID controller built-in. If I boot from a Linux CD would that work? I'll try and download a proper UBUNTU CD tomorrow. – Mike Berryman – 2013-10-03T21:09:11.413
Yes, this is quite an easy process. Find wherever the files on the Promise NS4300 server disk were backed up to and then restore from the backup. If anyone knows of a good RAID file recovery utility please let me know. R-Studio Network Edition. – ta.speot.is – 2013-10-05T06:57:49.787
@ta.speot.is: Unfortunately no backups exist. In addition the backup/restore facility is also not working. The system was made available to the users with the understanding they could share their workgroup files using it but were responsible for their own backups. Naturally none did make backups and are pressuring me to recover their files now. Othereise I would have re-formatted the drive already. – Mike Berryman – 2013-10-05T07:03:56.930