?
Solved

Raid 1 set up on scsi controller but Win2003 server shows disk as offline

Posted on 2006-05-26
6
Medium Priority
?
259 Views
Last Modified: 2010-04-03
Using LSI Logic 21320RB Ultra320 Dual Channel controller, I went into the card bios and set the card to mirror two identical Fujitsu drives.  The onboard scsi controller has a single drive attached that has Windows Server 2003 installed as the boot drive.  In order for the server to boot from this drive, I had to disable the bios on the LSI Logic card.  When I boot the server and go to Disk Management, it shows the C: drive as it should, but it shows the mirrored drives as one dynamic drive ('LSILogic 1030 IM scsi disk device' in Properties) that is set to OFFLINE and I can't get it changed.

My first assumption was that having the controller card do the mirroring would be better - faster - than having Windows handle the mirroring.  Is that a correct assumption?  If not, I can get it set up with Windows doing the mirroring.

If I SHOULD have the scsi card control the mirroring, how do I get the OS to recognize the drive and show it as ONLINE?
0
Comment
Question by:si-support
  • 2
3 Comments
 
LVL 11

Accepted Solution

by:
knoxzoo earned 500 total points
ID: 16771232
The card will handle RAID faster than the OS, and save a boatload of processor time/power.  However, the cards BIOS must be enabled for it to handle the task, and all drives involved must be on the card, giving the card's processor access to them.  

Pull the boot drive off the on-board and put it on the first channel of the LSI card.  Put the second drive on the other channel of the LSI card.  Reenable the LSI BIOS, set the RAID parameters, and, if the mobo BIOS supports it, set the LSI as the first SCSI boot object.
0
 

Author Comment

by:si-support
ID: 16772589
I thought of putting the OS drive on the new, faster card, but was concerned about everything on the scsi bus slowing to the lower speed of the old drive (ultra3 vs ultra 320).  

Will this NOT be a problem if I put them on the two different channels as you suggest?
0
 
LVL 11

Expert Comment

by:knoxzoo
ID: 16772842
Rig it up, configure speeds in the BIOS, fire it up, and pop a top.
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

This article is an update and follow-up of my previous article:   Storage 101: common concepts in the IT enterprise storage This time, I expand on more frequently used storage concepts.
Is your phone running out of space to hold pictures?  This article will show you quick tips on how to solve this problem.
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 …
Despite its rising prevalence in the business world, "the cloud" is still misunderstood. Some companies still believe common misconceptions about lack of security in cloud solutions and many misuses of cloud storage options still occur every day. …
Suggested Courses
Course of the Month16 days, 11 hours left to enroll

864 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