Perhaps wrong section... Seagate Business NAS RAID headache

[Zorb]

I have a 4 bay Seagate Business NAS in my shop right now. It has four ST1000DM003 disks, of which one is failed (definite bad sectors) and another has a massive number of reallocates. I have good images of all of the drives, but am unable to determined the RAID 5 parameters.

The unit suffered some sort of issue and the customer spent a lot of time with Seagate on the phone (stupid I know), during which they allowed Seagate remotely into the machine in order to do any number of things which will no doubt make my life harder.

My belief is that disk 3 failed first (definite bad sectors) and then disk 2 (reallocates) started generating enough errors that the unit stopped working.

I have found the partition structure, but am unable to determine parameters wither manually (R-Studio) or automatically (runtime, reclaime, R-studio), with or without the failed drives in any combination.

Has anyone dealt with one of these machines enough to give me some suggestions? It seems like a total piece of garbage to me. Very little is available, and Seagate support quality is even worse than their product quality.

I've dealt with arrays extensively, but this one has me banging my head against the wall.

[microsoftengineer]

Mr.Kiev is the Right Person to Contact in ALl Type of Raids...........

[Zorb]

Dr-Kiev, you mean? If so, I will ask him.

I have been away from this forum for a while, partially because I had other ventures to pursue and had somewhat lost interest in this field. I didn't know who to ask. I have spotted only a few familiar names from the past.

Incidentally, I did try searching first, but had no luck.

[Dmitri]

I have a 4 bay Seagate Business NAS ... four ST1000DM003 disks, of which one is failed (definite bad sectors) and another has a massive number of reallocates. I ... am unable to determine the RAID 5 parameters

If assistance is still necessary, I'll be glad to look into this NAS remotely.
Please check your PM.

[data-medics]

Zorb, Hi Zorb,

Have you tried building the array using UFS Explorer? It may be an XFS hybrid RAID like Buffalo and others use. Let me know if you need help.

[Zorb]

Does UFS Explorer handle missing volumes?

[Zorb]

"primary" partition, 512K stripe, left asymmetric, no delay, EXT4.

Never thought to check such a big stripe size.

Partitions are:
- Mirrored (or approximately) across all drives:
CLAIM (1MB)
RFS1, RFS2 (about 931MB each, EXT4)
CONF (Very small, no file system)
SWAP (931MB)
KERN1, KERN2 (10 MB each)
CRFS (272MB EXT4)
FWUPGR (952MB EXT4)
- RAID 5 across drives:
primary

Just wish R-Studio wasn't so slow to scan. The lost time is very annoying. Going to download UFS Explorer when I am done and play with it, since it was recommended above and the features look good on the website.

[richardhaupt]

Hi All

Zorb, I'm in a fairly similar boat to you. I have good images of three out of the four disks but am struggling like crazy with every software application I can find to detect the RAID parameters. Seagate have been little-to-no-help. Please report back on how UFS Explorer worked.

Regards
R