libvirtd is happy enough to run the second and/or third disk if I manually
insert via virt-manager or cli and VM sees the disk fine, so this issue is
how to get xcat to start an ephmeral VM that doesn't have a a porfile saved
on a hypervisor?

I can do this with lvm  using vmstorage=phy:/path/tol/v1|phy:/path/to/lv2
on a node yealds to compalints from xcat, all I'm looking for is the
equivalent for a file based disk image

_________________________________
Douglas Myers,
IBM Special Events - Smart Cloud BMS Lead
_________________________________
"It's not an opportunity if it doesn't scare you a little bit"




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  |Xiao Peng Wang <[email protected]>                                             
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  |xCAT Users Mailing list <[email protected]>                    
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  |08/06/2015 03:41 AM                                                          
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  |Re: [xcat-user] KVM storage question                                         
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I think you first need to figure out what libvirt can do for you since xcat
totally following it's functionalities.

Thanks
Best Regards
----------------------------------------------------------------------
Wang Xiaopeng (王晓朋)
IBM China System Technology Laboratory
Tel: 86-10-82453455
Email: [email protected]
Address: 28,ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road,
Haidian District Beijing P.R.China 100193

Inactive hide details for Douglas Myers ---2015/08/06 12:45:05---SLES 11 MN
and VM  xCAT-2.9.1  x86_64 KVM I am in the process Douglas Myers
---2015/08/06 12:45:05---SLES 11 MN and VM  xCAT-2.9.1  x86_64 KVM I am in
the process of converting from a LVM backed storag

From: Douglas Myers <[email protected]>
To: "xCAT Users Mailing list" <[email protected]>
Date: 2015/08/06 12:45
Subject: [xcat-user] KVM storage question



SLES 11 MN and VM  xCAT-2.9.1  x86_64 KVM


I am in the process of converting from a LVM backed storage solution for
VMs to a raw file for disk housed in a GPFS cell.  The design has the
hypervisors seeing gpfs as local storage, and when I add a single raw image
file and start the VM with it, everythign works fine.  The problem is,
several of these VMs have two or three logical volumes presented as disks,
sd[abc].  When I attempt to convert the second lv to a file, the conversion
works fine, but I'm missing the proper syntax to add it to the vmstorage
object:

vmstorage=/gpfs/root/z10071_rootvg.img|r/gpfs/app/z10071_appvg.img

When attempting to power up, I receive this message:

z10000:~ # rpower z10071 on
z10071: Error: internal error Only 1 ide controller is supported

If I try to set the vmstoragemodel to scsi, xCAT will boot the VM but the
VM cannot find it's root disk.  If I revert to a single disk and remove
vmstoragemodel I can successfully power on and boot into OS.  So how to I
add more than one image file as a disk?

(Yes, I know, should be using virtio disks, these are legacy machines,
newer VMs will hopefully be using it)

_________________________________
Douglas Myers,
IBM Special Events - Smart Cloud BMS Lead
_________________________________
"It's not an opportunity if it doesn't scare you a little bit"
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