Solved

RAID configuration

Posted on 2013-06-09
7
269 Views
Last Modified: 2016-12-08
Hello,
We bought a server about a year ago, it has given nothing but trouble. The raid was configured badly , 4 disk array RAID 10. Now the I/O on the disks is slow and due to a lack or ram , they are constantly paging to the point the server will become not responsive and needs rebooted every 2 to 3 days. So to start with I am looking at putting in new 15,000 RPM disks rather than 7,200. I want to reload the OS on the new disks. Now for my question. I am not experienced with server os's so I want to number the current disks and set them aside. Remove the RAID controller and sit it aside. So if I cannot get the new disks loaded and configured, I can put the old parts back and boot the server for Monday business. Will the LSI raid controller hold the configuration if pulled and replaced as I described?
Thank you
0
Comment
Question by:akersrus101
[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
7 Comments
 
LVL 10

Expert Comment

by:Senthil Kumar
ID: 39232932
The RAID configurations are stored in the RAID controller only.so the new disks and controller will hold the new config only.
0
 
LVL 47

Expert Comment

by:David
ID: 39232938
upgrading to 15K RPM drives won't fix the problem. You are starved for RAM (based on your symptoms).

If running windows, run perfmon (performance tools), or if running UNIX, look at top.
0
 

Author Comment

by:akersrus101
ID: 39232973
my question is, if I remove the old Raid card and old drives then put them back in the same order they came out, will the system still boot? (will the raid controller hold it's configuration) The faster drives alone will not solve the problem , but memory and faster drives sure won't hurt.
0
Free NetCrunch network monitor licenses!

Only on Experts-Exchange: Sign-up for a free-trial and we'll send you your permanent license!

Here is what you get: 30 Nodes | Unlimited Sensors | No Time Restrictions | Absolutely FREE!

Act now. This offer ends July 14, 2017.

 
LVL 47

Expert Comment

by:David
ID: 39233002
It will complain, but yes, you can do that.

A smarter thing to do would be to use all 8 disks, and create another RAID10, and migrate data to split the load.
0
 
LVL 55

Expert Comment

by:andyalder
ID: 39233014
The disks hold the metadata for the configuration as well as the card. If you're removing both the disks and the card then when you put them back they won't even complain about the config changing. If you use the controller with te new disks though and then want to put the old ones back onto it you'll have to import the foreign config from the disks.
0
 

Accepted Solution

by:
akersrus101 earned 0 total points
ID: 39233144
Thank you for your input andyalder. Here is what I had in mind. Adding 16 more gigs of ram to the current 16 and max it out at 32. I have talked to a few other IT firms about my options. The current install of SBS 2011 had data migrated from a 2003 server. In the migration there was no clean up done to the 2003 server before everything was moved. So there a registry entries dating back 7 or 8 years that are out dated and to many to clean up correctly. This is the only server we have, it is a small company. I thought I would go in on the weekend, number and remove the old drives and RAID controller. Put in 4 of the new drives and controller and configure to a raid 5 or 10.  Partition the drives and attempt a reinstall of the OS. My knowledge of server setup and exchange is limited so if I don't make enough headway by Sunday, I can put in the old parts so the company can continue to run on the old hardware. We paid an IT company to build this thing. And it did not turn out well. Besides not having enough memory, the current set of drives are setup with one big partition. Well sorry about going on, it is just a mess. We have a limited budget to fix.
0
 

Author Closing Comment

by:akersrus101
ID: 39247006
My comment was in reply to the answer.
0

Featured Post

Don't Miss ATEN at InfoComm 2017!

Visit booth #2167 to see the  new ATEN VM3200 32 x 32 Modular Matrix Switch. Other highlights include the VE8950 4K HDMI Over IP Extender, VS1912 12-Port DP Video Wall Media Player  and VK2100 ATEN Control System. Register now with Free Pass Code ATEN288!

Question has a verified solution.

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

Patch Management is administrated by page 129 of  the following document:     http://support.dell.com/support/edocs/software/smdmc/11/en/ug/ug.pdf However, there are issues with Patch Management with FTP (for instance, a slow Internet connectio…
Usually shares are where we want them for our users and we tend to take them for granted. There are times, however, when those shares may disappear causing difficulty for your users. One of the first things to try is searching for files that shou…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…

729 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