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moving disk array

By jackorama ·
scenario:
we have a disk array attached to a compaq 5500 server. this server has been crasing intermittently and i need to take it offline. this machine is our file server and obviously all the files/shares reside on the disk array. i need to movethe disk array to another machine.

the machine i need to move the disk array to is Compaq 3000. both machines have Smart-2DH Controller.

questions:
what issues do i need to consider at the hardware level?

what issues are involved at NT level (shares, permissions, etc). the files are on NTFS.

your comments and suggestions will be greatly appreciated.

TIA

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moving disk array

by dash242 In reply to moving disk array

I'll take a stab at it.
Hardware:
First, verify that the external channel on the controller is not being used internally.
Connect the array.
In windows, there is an array configuration utility to view and verify the array settings.

NTFS:
Youwill have to right some batch files or vbs scripts to take care of this quickly. The NT resource kit has utilities that can help with this. Permcopy.exe will copy permissions from one share to another. So, I would create a temp share on the 3000 first, use permcopy to copy perms to it, move the array, create a new share pointing to the array and use permcopy again and create the perms, then delete the temp share.
For file perms, XCacls.exe can be invoked from the command line or a batch, and can be used to reset the permissions on the files.
Look around the resource kit though, it has lots of utilities for modifying access control lists.

Also, 1800-OK-Compaq, suprisingly, can help with this issue.

Good luck.

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moving disk array

by jackorama In reply to moving disk array

The question was auto-closed by TechRepublic

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moving disk array

by aekland In reply to moving disk array

Hardware: Other than checking the connections and making sure the port is open you should be fine. The array configuration is stored on the drives so the controller will know all about it and NT is pretty good about the drives.
On the security side you might try getting a trial version of something like Aelita Domain Reporting tool. It allows the backup/restore of security data. I do not know what limits are on the trial version but it may be worth looking in to. Otherwise what duckenator said is a good approach.

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moving disk array

by jackorama In reply to moving disk array

The question was auto-closed by TechRepublic

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moving disk array

by simon.wellborne In reply to moving disk array

Without knowing the Compaq hardware that you mentioned, I would be conscious of the following:

If you move the disks, they will take with them NT and it's configuration - as it is set up for the 5500.

If you plug them into the 3000 and assuming the Smart controllers are identical, you might find other issues in terms of hardware and driver compatibility.

Unlike Win2k, Win9x etc NT 4 will not be able to dynamically change drivers pending changes in hardware. You might find that the NTinstall will blue screen on startup, or provide other erratic behaviour due to the drivers it has installed for the 5500.

Assuming that the machines are relatively close in hardware - things should at least start.

You will ahve to relaod NICand Video drivers, (unless they are identical across the machiens). In fact I would probably remove NIC and other misc drivers before moving the disks across (install loopback adapter driver).

Hope this helps.

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moving disk array

by jackorama In reply to moving disk array

The question was auto-closed by TechRepublic

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moving disk array

by mikeaussie In reply to moving disk array

I would agree with simonw. I would transfer the video / network / sound cards to the target system and barring any major discrepancy between the respective motherboards the system should work. As always, BACKUP the DATA First

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moving disk array

by jackorama In reply to moving disk array

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moving disk array

by stephen_ski In reply to moving disk array

HARDWARE.......BEWARE...
if you just slam the aray on without moving THE CONTROLLER CARD FIRST your new controller in the 3000 won`t recognise the array...REMEMBER the array is configured on the controller...this is a very dodgy process for which you must take care.... as to NT your shares won`t be affected they will just go to \\server1\share \\server2\share ...BUT antone using the exsiting share will have to unmap and re-mapp

DON`T BOTHER MOVING THE REST OF THE CARDS UNLESS YOU HAVE YOUR NT PARTITION AND DATA PARTITION ARE ON THE SAME SET OF DISKS...

apart from that you MUST DO A BACKUP FIRST
I Have done this before and you have a 50/50 chance of success....a better idea would be to get a loan server for a month or so ....do backup then copy all data to loan server and then change log-on scripts as per

good luck

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moving disk array

by jackorama In reply to moving disk array

The question was auto-closed by TechRepublic

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