Adding external disk array to a live server


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# 1  
Adding external disk array to a live server

Hi all

Ive got a v440 with an external T3 RAID in a dual bus configuration. I need to add an additional JBOD extension to the disk array via two VDCH cables.

Now, can I do this as the server is live ? Can I just plug the two cables in, switch on the additional extension ? Will this cause the scsi bus to go wild / panic ?

Getting down time for this job will be hard, and the paperwork to get it actioned is 15x harder than the job :-) So, Im aiming at doing the connecting as the server is up, but want to know if its possible ?

I was thinking that I just plug the second array / disk pack in, switch on. But not sure if the current disk array will see it, or if I need to do something for the new disks to be seen via the array.

Any pointers / opinions / or thoughts are humbly recieved :-)

Cheers

Simon K
# 2  
Its always better to get a downtime for such activities. Technically speaking, it can be done online, but no guarantee that your system will be stable, doing so..
Though its not necessary to reboot your system its advisable to boot the system using a reconfiguration.
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