[CentOS] Support for add disk SCSI

[Luis campo]

Thanks for your reply, 

 The configuration I mentioned implies that each SCSI disk array would be in a new partition? 

 Regarding the size of the disk because it recognizes only 273GB

thanks

Luis 

> Date: Tue, 8 Sep 2009 12:54:13 -0700
> From: centos at linuxpowered.net
> To: centos at centos.org
> Subject: Re: [CentOS] Support for add disk SCSI
> 
> Luis campo wrote:
> >
> > Dear Sirs.
> >
> >
> >
> > I appreciate your response.
> >
> >
> >
> > Currently the server has set up a Raid-1 with 2 SCSI disks, it adds up to 6
> > SCSI disks with the following configuration:
> >
> >
> >
> > - Raid-1 (4 SCSI disks)
> >
> > - Raid-1 (2 SCSI disks)
> >
> >
> >
> > Therefore will have 3 SCSI disk arrays.
> >
> >
> >
> > The server is not configured with LVM.
> >
> >
> >
> > CentOS 4.7 support this configuration?
> 
> Absolutely, if your doing it "online" you'll need to re-scan
> the scsi bus or manually add the new LUN/ID to the system,
> what I do is
> 
> - cat /proc/scsi/scsi
> (take note of the ID string, e.g.
> Host: scsi0 Channel: 00 Id: 01 Lun: 01 )
> 
> If the RAID controller presents the new array as a new LUN
> then do something like:
> 
> echo "scsi add-single-device 0 0 1 2" /proc/scsi/scsi
> 
> Will tell the system to scan for LUN #2
> 
> If the controller presents the new array as another SCSI
> ID, then I would use "0 0 2 0" or perhaps 0 0 2 1 as the
> sequence.
> 
> Otherwise you can reboot and the system will detect it
> automatically.
> 
> As for the disk size thing, that is normal, the system is
> correctly detecting the size.
> 
> nate
> 
> 
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