Solved

Replacing a dead scsi RAID 5 controller

Posted on 2004-10-04
5
381 Views
Last Modified: 2010-04-03
I have a Pentiun III (800 MHz) running Windows NT Server SP4. Yestarday, the Adaptec AAA-131U2 scsi controller card crashed so has to be replaced. I have a RAID 5 with 3 hard disks and my questions are:
1- If I get the same card, what must I do to replace and configure the new one without losing data?
2. If I can't get the same model, what can I do?
0
Comment
Question by:YoYo
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 5

Expert Comment

by:lidsky
ID: 12216252
Here's the answer from Adapec's site.

Want to change the AAA-131U2 to ASR-2100s without reformatting. Is it possible?

 
Question
 
I would like to change my AAA-131U2 into 2100S SCSI RAID Controller without reformatting my RAID drives (keep my old array and data). How can I do this?
This information applies to the following products:
- AAA-131U2, AAA-133U2 to any of the Adaptec SCSI RAID like the Adaptec SCSI RAID 2100S, Adaptec SCSI RAID 3200S, Adaptec SCSI RAID 3400S, Adaptec SCSI RAID 2110S, Adaptec SCSI RAID 3210S, Adaptec SCSI RAID 3410S.

 
Answer
 
Before you make any modifications on your system, we recommend that you backup and verify your data first.

To answer your question:
You can't move the array drive from AAA-131U2 (or other AAA cards) to the 2100S (or any of the Adaptec SCSI RAID listed) without re-creating the RAID.
The RAID information of the AAA series resides on the first track (track 0) of the drive. On the other hand, the SCSI RAID Controllers use the last track of the drive to store RAID information. So, when you move your array from the AAA controller to the SCSI RAID Controllers, it will attempt to read the last track. Since there are no RAID information on the last track of the drives, it will think that the drives are single drives or non-RAID array drives.

The only way you can use these drives as an array on the SCSI RAID Controllers is to clear all drives of its information (through low-level format using the SCSI RAID Controller).
Remember that once you low-level format your hard drive, it will completely erase all data and it is not recoverable. Do not interrupt the low-level format if you decide to go to this route. This might render the hard drives useless.
When you complete the low-level format, perform a cold boot (Power Shut-Down)on your system. Wait for about 5 to 10 seconds to flash out old information possibly stored on the buffer of the drives.

From here on, you can re-create the RAID using the SCSI RAID Controller BIOS inside SMOR (Storage Manager on ROM).

Note: If your drives from the AAA series are Ultra2, the drives are still going to communicate under "Ultra2" mode (80 MB/Sec bandwidth). You will need an Ultra160 drives (plus components being Ultra160 compliant) to take benefit the
performance above Ultra2.

0
 

Author Comment

by:YoYo
ID: 12369302
The problem was solved. I got a new adapter card, and changed it with no results. I finally installed the SCSI controller on another PC, got almost all the data stored in the RAID and finally sent the original PC to be repaired.

Thanks
0
 

Accepted Solution

by:
RomMod earned 0 total points
ID: 12411402
The question has been PAQ'd and the 500 points have been refunded.
RomMod
Community Support Moderator
0

Featured Post

Are You Using the Best Web Development Editor?

The worlds of web hosting and web development are constantly evolving. Every year we see design trends change, coding standards adapt and new frameworks/CMS created. With such a quick pace of change it’s easy to get lost trying to keep up.

See if your editor made the list.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Finding original email is quite difficult due to their duplicates. From this article, you will come to know why multiple duplicates of same emails appear and how to delete duplicate emails from Outlook securely and instantly while vital emails remai…
In this article we will learn how to backup a VMware farm using Nakivo Backup & Replication. In this tutorial we will install the software on a Windows 2012 R2 Server.
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…

627 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