Help with Xserve Raid5 Recovery

[BadMac]

I have spent a bit of time on this array but am missing something (I have 2 of them in at present both failed within an hour of each other 2000km apart).

Can somebody look at this jpeg which has come from the array and point out the obvious mistake.
Array is HFS+ Apple Xserve 2.1. 3x1TB drives, cloned by owner , so I can't confirm the quality of the clone, but the owner is very competent. The stripe seems right (64k) but those little offsets and the corruption are trying to tell me something that I am missing. I have most tools so can try things and report back

[scratchy]

Is this from a raw scan or can you see the partition ?

[DR-Kiev]

I have spent a bit of time on this array but am missing something (I have 2 of them in at present both failed within an hour of each other 2000km apart).

Can somebody look at this jpeg which has come from the array and point out the obvious mistake.
Array is HFS+ Apple Xserve 2.1. 3x1TB drives, cloned by owner , so I can't confirm the quality of the clone, but the owner is very competent. The stripe seems right (64k) but those little offsets and the corruption are trying to tell me something that I am missing. I have most tools so can try things and report back

Take it. I cut it from you picture. Is it look like better ? .
May be i can help you something. PM me.

Attachments

noname.jpg (148.19 KiB) Viewed 6684 times

[BadMac]

Sorry that was 1:00am this morning. I am back after some sleep.

Its a "raw" scan in that its from RStudio 5.2 which I stopped after 10Gb of a 1.8TB scan so it only gives "Extra Found Files" at this stage. I can't wait for a full scan each time, so I normally just run for enough to get some JPEGs bigger than the stripe for viewing initially to check quality. I can setup and see the partitions (1@100Gb and 1@ 1.7TB) in UFS Explorer and I can see the partition info in WinHex.

Here is the start of the disk from WinHex for each disk. D1, D2 and D3 aren't in order, they are just how I loaded them into WinHex (ie their order on the SATA bus). All the sectors befor these were 00h

[BadMac]

I have spent a bit of time on this array but am missing something (I have 2 of them in at present both failed within an hour of each other 2000km apart).

Can somebody look at this jpeg which has come from the array and point out the obvious mistake.
Array is HFS+ Apple Xserve 2.1. 3x1TB drives, cloned by owner , so I can't confirm the quality of the clone, but the owner is very competent. The stripe seems right (64k) but those little offsets and the corruption are trying to tell me something that I am missing. I have most tools so can try things and report back

Take it. I cut it from you picture. Is it look like better ? .
May be i can help you something. PM me.

Thanks, now can you supply the rest of the data (about 1TB of JPEGs going back to 2002).

[BadMac]

Problem solved.

A VERY VERY big thank you to Dr Kiev. He remoted my machine and spent almost 6 hours sorting the parameters. In the end he got it 100%n (solved "the puzzle" as he put it). The data has been destriped and returned to the customer. I won't post the details here, but Dr-Kiev may wish to expand on what he found and fixed (I am happy for him to post the details).

I could not have done this job without your help and you went way way beyond just giving advice. I really appreciate the effort. If you ever come to New Zealand I will help with your arrangements.

If you ever need advanced help with a Raids, PM Dr-Kiev he is the man!

Now to tackle the other 4 HFS+ Raids I have in at present, with a little knowledge and knowing help is a PM away.

Thank you HDDGuru and especially Member Dr-Kiev.

[CK]

I'm sure he'd appreciate some beer money via WesternUnion

[drc]

Yes, it seems like he is keen on helping people with their RAID issues... I hope he is getting paid for that

[fzabkar]

Yes, it seems like he is keen on helping people with their RAID issues... I hope he is getting paid for that

Some people help others without the expectation of remuneration. For them, gratitude is sufficient reward. Incredible, but true.

[drc]

Yes, it seems like he is keen on helping people with their RAID issues... I hope he is getting paid for that

Some people help others without the expectation of remuneration. For them, gratitude is sufficient reward. Incredible, but true.

Help is one thing, spending six hours doing someone else's job for them so they can get paid a lot of money is something else

IMO anyone who is on the receiving end of such help should be sending some money or something whether the helper is asking for it or not

[BadMac]

Yes, it seems like he is keen on helping people with their RAID issues... I hope he is getting paid for that

Some people help others without the expectation of remuneration. For them, gratitude is sufficient reward. Incredible, but true.

Help is one thing, spending six hours doing someone else's job for them so they can get paid a lot of money is something else

IMO anyone who is on the receiving end of such help should be sending some money or something whether the helper is asking for it or not

Don't speak about things you know nothing about. Especially when it concerns commercial arrangements between parties which you have absolutely NO KNOWLEDGE ABOUT.

Dr Kiev did spend the time because he likes to help others learn, yes I benefited, but I most certainly made no money from it and if you understood the nature of the job you would understand why, I can't speak because of client confidentiality which in this business must be absolute. Yes I hope to make money from recovering Raids in the future (as I have done in the past!), and Dr Kiev will be commercially compensated for both his future help and for his training. I will also help him in any way I can, simple because he helped me (a person he did not know, who simple asked for help) on a job that I had spent about 20 hours on because I had missed a vital clue. The Raid was configured by Mr Nobody and had already had Apple resources poured into it at whatever rate you pay Apple experts when you are out outside of the support contract that they gave you (1 year) after you paid them for the privilege of having the junior tech configure your raid as a learning "what extreme combinations of parameters do" exercise!!!! The Apple guys had consumed the whole budget for the job before I was asked to help. I helped because I could. Dr Kiev helped because he could. I thank him publicly for that.

In the mean time, just read about how great this forum can be, how great some of its members are, and hope that when you need help one day that we are all as generous as Dr Keiv with our time, knowledge, parts, firmwares, tips techniques and advice as he was in this instance. I know I am not the only person with a debt of gratitude to Dr Kiev on this forum!

P.S. DR Keiv, if you read this, I Thank you again. I really appreciated your help. If you ever want to visit New Zealand or have planned a Holiday here, email me and I will help in all ways that I can, including financially.

[DR-Kiev]

Thanks Mark . I try to explaine to All .

I have worked with Raid's about five years . I like it , i enjoy of its. Its like a puzzle for kids. I collect different configurations. If i see interesrting server or unusual config for me i can help anybody absolutly free .This does not mean that I am working for free . My basic earnings is RAIDrebuilds educating people online . Some people turn to me and I show them how to assemble arrays . Learning charge, i explaine all things i do . I make a new interesting project which will help to quickly find out the configuration of many types of Raid's. I need a lot differents config for this project. I write down markers and metadata that leave the controllers on the disks and fixing all unique sequences. I NEED MORE .

While I did 6t hours Xserver Raid for BadMac by TeamViewer, I have been doing few my work in our office. It is not taken my time so long.

If someone will have any questions about their RAID, please PM me, don't be hesitate , I'll help you with pleasure if I can.

Sorry for my english i only learn .