[CentOS] Support for add disk SCSI

[Luis campo]

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? 



Another supplementary question, because CentOS 4.7 only recognizes 273GB  if
the disk is 300GB? 



Thanks 



Luis

> Date: Tue, 8 Sep 2009 14:14:41 -0400
> From: rswwalker at gmail.com
> To: centos at centos.org
> Subject: Re: [CentOS] Support for add disk SCSI
> 
> On Tue, Sep 8, 2009 at 2:01 PM, Luis campo<lcr_2505 at hotmail.com> wrote:
> > Dear Sirs.
> >
> > I have a ML370 G4 server with 2 disk SCSI Ultra 320 of 300 GB in RAID-1
> > through a controller and operating system CentOS 4.7.
> >
> > My question: CentOS 4.7 could support the expansion of capacity by adding 6
> > disks SCSI Ultra 320 of 300GB in Raid-1?
> 
> Sure, create 3 RAID1s (or a RAID5/6/10) on HW or SW then create an LVM
> VG out of them, create LVs (striped if multiple RAID devices) out of
> the VG.
> 
> I don't know if your using LVM now on the existing RAID1, but I
> wouldn't just add them to the root VG if you are, which would also
> give it expanded capacity, as it would make recovery more difficult if
> you need to put the drives into a new server.
> 
> -Ross
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