Solved

SCSI RAID Mirrored Array - What happens if the controller breaks?

Posted on 2004-04-22
2
398 Views
Last Modified: 2010-04-03
Hello all, following my previous question, we've decided to go with a single channel SCSI RAID controller from LSI, but I have one more check to make....

the question is...is it possible to read the data off a disk that had been in a mirrored SCSI RAID array from a normal SCSI controller, should our SCSI RAID controller die on us?

For example, if we connected our drives up to the SCSI RAID controller, and create a mirrored RAID array and then, at some point down the line, the RAID controller fails (_not_ a hard disk that is part of the array), would it be possible to bring the system back up by simply removing one of the disks from the broken controller, and connecting that disk to the working (original) SCSI non-RAID interface?

Cheers in advance
Ben
0
Comment
Question by:bcops
2 Comments
 
LVL 1

Accepted Solution

by:
Pide earned 250 total points
ID: 10889816
No.
The way raw data is handled onto the SCSI disk differs from controller to controller (surely from brand to brand, sometimes from model to model on the same brand).

If you pick up a mirrored SCSI disk and want it to work, you should consider to have another "same-branded" controller on the recovery side.

For some simple ATA (onboard) controller it may work, but don´t count on it for complex (multi-RAID mode) SCSI/FC controllers.
0
 

Author Comment

by:bcops
ID: 10890248
Cheers, that should be fine, and I think what we'll do is buy one controller, test to see whether the discs would be recoverable on a different controller, and then make our decisions on buying a second one based on that

The points are yours :-)
Ben
0

Featured Post

New My Cloud Pro Series - organize everything!

With space to keep virtually everything, the My Cloud Pro Series offers your team the network storage to edit, save and share production files from anywhere with an internet connection. Compatible with both Mac and PC, you're able to protect your content regardless of OS.

Join & Write a Comment

Solid State Drive Performance Tips: Solid state storage technology is now a standard.  After testing and using several different brands and revisions of SSD's over the years I have put together a collection of tips,tools and suggestions that I ha…
If you have a USB Drive that is not recognized by Windows the problem is usually that you have too many network drives or other drives that occupy all the drive letters D: E: or F: which is the normal drive letter of a usb drive. The way to correct …
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…

708 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

16 Experts available now in Live!

Get 1:1 Help Now