Solved

What is the procedure for replacing 18gig drives with 73gig drives in a JBO which is mirrored on a UNIX system?

Posted on 2004-10-19
4
168 Views
Last Modified: 2010-04-03
I have a UNIX High Availability system in which the JBOD hold a database for our application (hospital patient demographics database) and the system is due for an upgrade.  The upgrade mandates larger drives of which I have 6 each 73gig drives that will replace the 6 18gig drives presently in use.  I know that there is a need to halt the system, break the mirror, transfer the data to another storage device (dds tape or raid) and then pull the drives, replace them, reload data and then remirror the 6 drives.  I also am aware that there are some unmouts / mounts and logical volumn management that has to happen. The logical volume that I will have to concern myself with is a vgwise and I add this only in allowing anyone responding the opportunity to use a label within their explanation.  Thanks much.
0
Comment
Question by:rhodson
4 Comments
 
LVL 13

Expert Comment

by:Caseybea
ID: 12353140
What flavor of Unix are you running?

Are the disks SCSI or IDE?

If you can give a bit more detail about the environment- we can get you some good solid answers.
0
 
LVL 15

Accepted Solution

by:
Cyber-Dude earned 500 total points
ID: 12356548
The generic steps for a RAID upgrade.

-400. Backup everything!!!!

1. halt the system.
2. Break the mirror by leaving the source and install the new drive in the destination slot.
3. Rebuild the mirror.
4. Halt the system once again.
5. Break the mirror and relocate the destination hard drive to be as the source drive and insert the additional new 73GB drive to be as the destination.
6. Rebuild the mirror and extend the partitions to your will.

Cyber
0
 

Author Comment

by:rhodson
ID: 12358083

Responding to Caseybea's request for additional info...  The UNIX flavor is 11.0 and our setup is two L class 9000 servers which are clusterd (something that I should have added late last night but only two brain cells were workin).  On the first server is our package called WISE which has the database with the patient demographics.  On the second server is our IMS4 package which handles the image importing function from the X-ray dept. The actual layout of the /dev/vgwise/lvolor 1 through 9 is as follows:

/dev/vgwise/lvolora1
                   4096000 2981960 1044420   74% /wisedb/data
/dev/vgwise/lvolora2
                    131072    3183  119903    3% /wisedb/redo1
/dev/vgwise/lvolora3
                    131072   69581   57655   55% /wisedb/system
/dev/vgwise/lvolora4
                    786432  247061  505668   33% /wisedb/temp
/dev/vgwise/lvolora5
                   8388608 6628452 1650154   80% /wisedb/index
/dev/vgwise/lvolora6
                    131072    3183  119903    3% /wisedb/redo2
/dev/vgwise/lvolora7
                    786432   47029  693198    6% /wisedb/rbs
/dev/vgwise/lvolora8
                   8388608 1421582 6751016   17% /wisedb/arch
/dev/vgwise/lvolora9
                   8388608 4586986 3686276   55% /wisedb/backup
/dev/vgwise/lvolwise1
                    524288    7992  487155    2% /var/opt/sectra/ha/wise      

The disks that are associated with these volume groups are:            

primary      c5t15d0            c11t8d0            c5t4d0            c11t2d0            c5t1d0            c11t0d0
alternate      c11t15d0            c5t8d0            c11t4d0            c5t2d0            c11t1d0            c5t0d0

I hope that this is enough.  Knowing that my level of compentency would make more than a few people hurl in laughter is something that I hope to increase to a level that would permit me to be on the answersing side of these forums but for now the sum total of my ignorance is a quality appreciated only by those who know more...    Thank you fer the the response.


0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

The question appears often enough, how do I transfer my data from my old server to the new server while preserving file shares, share permissions, and NTFS permisions.  Here are my tips for handling such a transfer.
The business world is becoming increasingly integrated with tech. It’s not just for a select few anymore — but what about if you have a small business? It may be easier than you think to integrate technology into your small business, and it’s likely…
This tutorial will walk an individual through the process of installing the necessary services and then configuring a Windows Server 2012 system as an iSCSI target. To install the necessary roles, go to Server Manager, and select Add Roles and Featu…
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…

839 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