CentOS - Nov 2015 - getting a CentOS6 VM on VMware ESXi platform to recognize a new disk device

Hello all,

Is there a way to recognize a hot-plugged disk (i.e., to get the system to
recognize it and build the appropriate /dev/sd* device for the new device)
without a reboot?

Thanks.

Boris.

Hi Boris,
Just rescan the scsi host.
#scsi-rescan #if you have sg3_utils package
#lsscsi 
Or
#echo "- - -" > /sys/class/scsi_host/host[n]/scan

Julius
> On Nov 4, 2015, at 15:31, Boris Epstein <borepstein at gmail.com>
wrote:
> 
> Hello all,
> 
> Is there a way to recognize a hot-plugged disk (i.e., to get the system to
> recognize it and build the appropriate /dev/sd* device for the new device)
> without a reboot?
> 
> Thanks.
> 
> Boris.
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos

Hello Julius,

Thanks - but it doesn't seem to work.

I installed sg3_utils and ran
#scsi-rescan

but that seemed to have done nothing for some reason.

Cheers,

Boris.


On Wed, Nov 4, 2015 at 10:12 AM, Tnjulius <tnjulius at gmail.com> wrote:
> Hi Boris,
> Just rescan the scsi host.
> #scsi-rescan #if you have sg3_utils package
> #lsscsi
> Or
> #echo "- - -" > /sys/class/scsi_host/host[n]/scan
>
> Julius
>
> > On Nov 4, 2015, at 15:31, Boris Epstein <borepstein at
gmail.com> wrote:
> >
> > Hello all,
> >
> > Is there a way to recognize a hot-plugged disk (i.e., to get the
system
> to
> > recognize it and build the appropriate /dev/sd* device for the new
> device)
> > without a reboot?
> >
> > Thanks.
> >
> > Boris.
> > _______________________________________________
> > CentOS mailing list
> > CentOS at centos.org
> > https://lists.centos.org/mailman/listinfo/centos
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos
>

Hi,

I think, this is possible with scsi disks

http://www.cyberciti.biz/tips/vmware-add-a-new-hard-disk-without-rebooting-guest.html

Eero
4.11.2015 4.32 ip. "Boris Epstein" <borepstein at gmail.com>
kirjoitti:
> Hello all,
>
> Is there a way to recognize a hot-plugged disk (i.e., to get the system to
> recognize it and build the appropriate /dev/sd* device for the new device)
> without a reboot?
>
> Thanks.
>
> Boris.
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> https://lists.centos.org/mailman/listinfo/centos
>

On Wed, Nov 04, 2015 at 05:39:59PM +0200, Eero Volotinen
wrote:
> I think, this is possible with scsi disks
> 
>
http://www.cyberciti.biz/tips/vmware-add-a-new-hard-disk-without-rebooting-guest.html
While I believe that this URL has technically correct advice, it's
basically doing a subset of the commands in the scsi-rescan script in
the sg3_utils package.

I wonder if you need to be running the vmware tools for the kernel to
detect new devices?

-- 
Jonathan Billings <billings at negate.org>