[help needed]recovery data from fail HD of SNAP2000

[saga]

I have one snap2000 with raid 1. About one year, 1 HD is failed. I report to boss, but boss dont care. Yesterday, the reset HD also failed. I connect to snap via IE, log show could not find hardisk.

My question, because snap is Unix base OS, may I recovery data from linux envir? Is any one have successful experience?

tks in advance

[blue68f100]

Apparently you boss does not think the data (Snap) was important. Hopefully all of his data was on there.

I'm afraid the only reliable way to recover is with another 2000, with the same OS version in flash ram.

With in the last year, FreeBSD v6 added support for XFS. May try it. It normally does not add the XFS extension. Another option is the FreeNAS. It has the capability of mounting existing drives. But you will need to know what the share name was.

DO NOT TRY TO MOUNT IT WITH A WINDOWS MACHINE, YOU WILL BE HOSED.

FreeBSD is not Linux, Do not use Linux. Snap OS is built on FreeBSD

[saga]

blue68f100, thanks a looooooooooot for yr tips

[blue68f100]

For got to mention the Snap OS is built on FreeBSD.

[Koenig]

Sounds like the same problem I'm having with the 2200....

Can I use the Freenas? I know the share names of both drives and everything....

[blue68f100]

The FreeNAS does bring more option in to the mix.

FreeNAS allows you to mount drives that have been prevoius used in other systems. It is built off of FreeBSD v6.1. It may work, give it a try.

I would actually run the MFG utility for the HD's first to look at the SMART data. You may be spinning your wheels.

[re3dyb0y]

Originally Posted by Koenig

Sounds like the same problem I'm having with the 2200....

Can I use the Freenas? I know the share names of both drives and everything....

Knowing the shares wont matter

They will more than likely just be folders on the disk

You just need to find something to read em

[Koenig]

Originally Posted by re3dyb0y

Knowing the shares wont matter

They will more than likely just be folders on the disk

You just need to find something to read em

Yeah I'm gonna try the MFG utility as Blue suggested..... damn shame I don't have access to another snap 2200, would just make everything easier by plugging the drives into there and see if it boots up, if not than I an at least assume I should try Assist to init the drives again....

[re3dyb0y]

Assist wont init the drives

[blue68f100]

Assist is a utility to locate a snap with NO IP address assign. It allow you to set the IP and do the init setup for your network.

[shadowman]

I have two questions.

If you have a hard drive of different version...let say 3.4.805....hooked up to IDE1 and the second drive that needs to be extracted from and it is running OS 4.0.860. Can the 3.4.805 read the 4.0.860 drive? Will the Snap Server only boot from the IDE1 hard drive only and disregard the OS on the second drive?

Curious,

SM

[blue68f100]

Very good questions, I have wondered that to. I have always recomend using the same hardware if at all posiable.

But your question is/has a different twist. This is what I believe but have not tested it.

All snaps v2 and up use the same disk structure. So a v3 os should read a v4 drive and vise versa.

To add another question to yours. Is the drive part of a RAID 1 Set????

I do not know if there is a difference between software Raid and hardware raid. If they use the same authorythem.... it should not make a differnce. But they may not, I dont know.

If a drive from a 2200 (v4.0.860, JBOD) installed as the slave in a 2000 (jbod) v3.4.805 what will happen? I'm not shure having not done this before. What I think will happen? You should be able to read the drive without any problem.

Installing the 2200 v4 jbod as master is not recomended. Snaps with flashram OS have extra software modules installed that is not on the 2200 models.

NOW WHAT WILL HAPPEN IF THE 2200 WAS IN RAID 1......

1. I would upgrade the OS in the 2000 to match the 2200 v4.0.860, if posable. V1 2000 will not run v4.0.860. some what. it has been reported on several cases that it slows the 2000 down to a snail pace. 4.0.830 does not have the problem.

2. If upgraded to the same OS, I would make sure the Snap is configured as a RAID 1. Install the 2200 drive in the master postion and see what happens. BEING WARE THAT THE 2000 MAY UPDATE THE OS. OR MAY TREAT IT AS A DEW DRIVE AND FORMAT IT. Don't think it will happen, but don't know.

3. If the 2000 is in RAID 1 failing the slave drive, then installing the 2200 drive as slave..... What will HAPPEN ?????
. a. Will know the raid is broken, will also know the drive is not part of its set, and may just mount the drive, May not BE READABLE, slice 50000. Without doing any thing to it. Normally if a clean drive is installed it will init and format the drive, but not repair the mirror.

4. If the 2000 is in RAID 1 failing the Master drive, then installing the 2200 drive as Master with NO drives from the 2000..... What will HAPPEN???????
. a. Since the 2200 drive is bootable, it may boot from it.
. b. May repair the OS to work with the 2000,
.... 1. Then the data may be read, or
.... 2. Or may not beable to read the data due to different aurgthrime..

5. If the 2000 is in RAID 1 failing the Master drive, then installing the 2200 drive as Master with the 2000 slave still in place..... What will HAPPEN???????
. a. It may try to boot from the 2200 (master) and auto roll to the slave drive.
.... 1. Slave drive should be readable, have know idea with Master?
. b. It may try to boot from the 2200 (master) and then repair the OS for 2000.
.... 1. So will the drive be readable??? Maybe
.... 2. If SO the Slave drive may not, Having 2 different 60000 slices.
...... a Will it attempt to repair the differences????
. c. So will the drive be readable if booted from the slave?
..... 1. Slave drive should be readable, have know idea with Master?
..... a. Having 2 different 60000 slices.

HAVE NO IDEA WOULD BE AN INTERESTING EXPERIMENT.

My best guess is 4 would be the most likely if in raid1.

[Phoenix32]

David, you have way too much time on your hands...

[blue68f100]

Trying to cover all the basis.

It's my R & D background showing it's side. Besides it something that has not been covered in the past.

But didn't relize I was writing a book.

[shadowman]

I will try it in this weekend and let you know my findings. I will make a folder and put several documents and JPG photos and see if I am able to retrieve and modify them having booted from OS3.4.805 trying to access secondary OS 4.0.860 drive.

I remember one thing an old man told me once......"Do not fear the unknown.....embrace it and learn from it. That's is what makes you wiser. Because Knowledge is POWER!"

Thanks for the in depth specualtion. Well at least I gave you a mind perplexing puzzle.


SM

[shadowman]

Heck... I was bored. I have discovered something interesting.

Blue your hypothesis was correct. OS 3x CAN READ OS 4x and vice versa. I believe this is a technique to extact data off a trouble SNAP drive. I would probably think to convert the drive in question to a JBOD wouldn't be a bad idea.


SM

[blue68f100]

I was not saying to convert to RAID , but if it was already in RAID. Just try to match the failed snap setup.

[shadowman]

It does boot off the primary even though you have a bootable secondary drive. It disregards the secondary since the primary had a bootable OS on it. DATA is DATA no matter what OS is on the drive. Don't know about older OS's.

TESTED OS 3.4.805 Primary to read OS 4.0.860 secondary data extraction........check

TESTED OS 4.0.860 Primary to read OS 3.4.805 secondary datta extraction.....check

Older OS's to be determined.


SM

[blue68f100]

Shadoman,

Give me some more detail on what failed and what was used to read it.

Like 1x00 HW failed, moved to 2000.
or 2000 in JBOD moved to 2200.
2200 failed in RAID1, moved to 2000 as slave.

Snap uses Drive ID to Identify arrays, 4000 as Raid 0, 5000 for Raid 1, 6000 for Raid 5.

[snap-tech]

If you have a snap and it will not mount the drive so that you can see the data, or will not boot so that you can at least get access to web administration page!

1. Do not insert that drive into another snap server. Even if they were running
the same OS.

If you do, and the new snap does see drive but does not see a valid
snap filesystem, it will initialize the drive and format the fats.

The only time that you would be safe in doing this is if it was not the HD that
failed, and it was the server itself that failed somehow. therefore the HD
filesystem should be completely intact and ok.

If you are determined to try that then make sure you do a full sector to sector
copy of that drive to another drive that has same amount of sectors or is larger.
Then insert the copied drive and see if you can access at.

2. There is no piece of software or utility or way of mounting the filesystem
that will allow you recover the data except for the following way.

There is only 2 ways to recover files off a snap.

A. Obviously the first way is to gain access through a working snap as it
should be.

B. The second way is to use a specially writtin utility that understands how
the data is structured on a snap and can extract data to another drive.
these utilities do exsist, but only in the hands of a professional data
recovery company, who studied and wrote the utility inhouse.

I happend to be one who has this utility!!!!

I worked for Snap and supported Snap Servers for 2 years.


So basically if you have a snap that you are no longer able to access the
data and you need the data then please do contact me.

Most data recovery companies charge approx $2,000 on up for snap
snap recoveries.

In my case --- no reasonable offer will be refused. So take a chance,
contact me and we will go over failure details, then make me an offer.

I will also except other forms of payment. What have you got to trade and
don't need or want anymore.

Snap-Tech

[snap-tech]

If you need data recovery and are going to contact me through my email address, the subject line must be as follows:

Snap Data Recovery


the reason for this is because I have setup a filter to forward that email to my cell phone. I do not check this email account on a daily basis, or sometimes even on a weekly basis.

[Hallis]

Originally Posted by snap-tech

If you need data recovery and are going to contact me through my email address, the subject line must be as follows:

Snap Data Recovery


the reason for this is because I have setup a filter to forward that email to my cell phone. I do not check this email account on a daily basis, or sometimes even on a weekly basis.

Don't suppose you have a spare working 2200 laying around do you?

[re3dyb0y]

Originally Posted by snap-tech

If you have a snap and it will not mount the drive so that you can see the data, or will not boot so that you can at least get access to web administration page!

1. Do not insert that drive into another snap server. Even if they were running
the same OS.

If you do, and the new snap does see drive but does not see a valid
snap filesystem, it will initialize the drive and format the fats.

The only time that you would be safe in doing this is if it was not the HD that
failed, and it was the server itself that failed somehow. therefore the HD
filesystem should be completely intact and ok.

If you are determined to try that then make sure you do a full sector to sector
copy of that drive to another drive that has same amount of sectors or is larger.
Then insert the copied drive and see if you can access at.

2. There is no piece of software or utility or way of mounting the filesystem
that will allow you recover the data except for the following way.

There is only 2 ways to recover files off a snap.

A. Obviously the first way is to gain access through a working snap as it
should be.

B. The second way is to use a specially writtin utility that understands how
the data is structured on a snap and can extract data to another drive.
these utilities do exsist, but only in the hands of a professional data
recovery company, who studied and wrote the utility inhouse.

I happend to be one who has this utility!!!!

I worked for Snap and supported Snap Servers for 2 years.


So basically if you have a snap that you are no longer able to access the
data and you need the data then please do contact me.

Most data recovery companies charge approx $2,000 on up for snap
snap recoveries.

In my case --- no reasonable offer will be refused. So take a chance,
contact me and we will go over failure details, then make me an offer.

I will also except other forms of payment. What have you got to trade and
don't need or want anymore.

Snap-Tech

God, if we had copies of this!

But thanks for teh offers for this tho!