Xen users - Sep 2006 - RE: Help: Xen HVM Domain can ONLY support four hard drivesat most???

>-----Original Message-----
>From: xen-users-bounces@lists.xensource.com
>[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Liang Yang
>Sent: 2006年9月12日 8:57
>To: xen-users@lists.xensource.com
>Subject: [Xen-users] Help: Xen HVM Domain can ONLY support four hard
>drivesat most???
>
>Hi,
>
>I have 5 SATA hard drives and I want to expose all these five drives to
>Windows HVM domain (domain name: w2k3-001) from dom0. Here is the
>related
>setting in my Windows config file:
>disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'',
>''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
>''phy:/dev/sdg,ioemu:hdd,w'',
''phy:/dev/sdh,ioemu:hde,w'' ]
>
>When I start Windows domain, I got the following error:
>Error: hvm: for qemu vbd type=file&dev=hda~hdd
Em. The error should mean you can only use had~hdd for ioemu. hde+ is for vbd.
You can have a try with:
disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'',
''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
''phy:/dev/sdg,ioemu:hdd,w'',
''phy:/dev/sdh,hde,w'' ]

Well, Windows doesn''t support vbd yet. So you can not use more than 4
IDE disks for Windows HVM.
>
>I then changed to the following format:
>disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,hda1,w'',
>''phy:/dev/sde,hdb1,w'',
>''phy:/dev/sdf,hdc1,w'',
''phy:/dev/sdg,hdd1,w'', ''phy:/dev/sdh,hde2,w''
]
>
This is not a correct usage for HVM. You can only use hda, hdb etc, but not
hda1, hdb1 etc.
>But the Windows domain console Windows does not show up after I typed
"xm
>create w2k3.hvm -c" and I also got the following error:
I think your Windows doesn''t open serial console output. So
don''t using "-c". "xm create w2k3.hvm" is okay.

Best Regards,
Yongkang (Kangkang) 永康

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Hi YongKang,

Thanks for your help. I did try
disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'',
''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
''phy:/dev/sdg,ioemu:hdd,w'',
''phy:/dev/sdh,hde,w'' ]

but I still can get only four hard drives in my Windows HVM domain. Any 
ideas?

Thanks,

Liang

----- Original Message ----- 
From: "You, Yongkang" <yongkang.you@intel.com>
To: "Liang Yang" <multisyncfe991@hotmail.com>; 
<xen-users@lists.xensource.com>
Sent: Monday, September 11, 2006 6:22 PM
Subject: RE: [Xen-users] Help: Xen HVM Domain can ONLY support four hard 
drivesat most???

>-----Original Message-----
>From: xen-users-bounces@lists.xensource.com
>[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Liang Yang
>Sent: 2006年9月12日 8:57
>To: xen-users@lists.xensource.com
>Subject: [Xen-users] Help: Xen HVM Domain can ONLY support four hard
>drivesat most???
>
>Hi,
>
>I have 5 SATA hard drives and I want to expose all these five drives to
>Windows HVM domain (domain name: w2k3-001) from dom0. Here is the
>related
>setting in my Windows config file:
>disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'',
>''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
>''phy:/dev/sdg,ioemu:hdd,w'',
''phy:/dev/sdh,ioemu:hde,w'' ]
>
>When I start Windows domain, I got the following error:
>Error: hvm: for qemu vbd type=file&dev=hda~hdd
Em. The error should mean you can only use had~hdd for ioemu. hde+ is for 
vbd. You can have a try with:
disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'',
''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
''phy:/dev/sdg,ioemu:hdd,w'',
''phy:/dev/sdh,hde,w'' ]

Well, Windows doesn''t support vbd yet. So you can not use more than 4
IDE
disks for Windows HVM.
>
>I then changed to the following format:
>disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,hda1,w'',
>''phy:/dev/sde,hdb1,w'',
>''phy:/dev/sdf,hdc1,w'',
''phy:/dev/sdg,hdd1,w'', ''phy:/dev/sdh,hde2,w''
]
>
This is not a correct usage for HVM. You can only use hda, hdb etc, but not 
hda1, hdb1 etc.
>But the Windows domain console Windows does not show up after I typed
"xm
>create w2k3.hvm -c" and I also got the following error:
I think your Windows doesn''t open serial console output. So
don''t using
"-c". "xm create w2k3.hvm" is okay.

Best Regards,
Yongkang (Kangkang) 永康


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Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Hi,

I tried both the following formats in the Windows config file, but they did 
not work:

1. disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'', 
''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
''phy:/dev/sdg,ioemu:hdd,w'',
‘phy:/dev/sdh,ioemu:hde,w'' ]
Windows domain does not boot and Xen reports error "Error: hvm: for qemu
vbd
type=file&dev=hda~hdd"


2. disk = [''phy:/dev/VG_Dom3_Windows/w2k3-001,ioemu:hda,w'', 
''phy:/dev/sde,ioemu:hdb,w'',
''phy:/dev/sdf,ioemu:hdc,w'',
''phy:/dev/sdg,ioemu:hdd,w'', ‘phy:/dev/sdh,hde,w'' ]
Windows boot, but it can still recognize only four hard drives.

Windows try to emulate those IDE hard drives and this could be the reason 
the Windows HVM domain can not recognize more than 4 hard drives.

I really appreciate if anyone can help me walk around this issue.

Thanks a lot,

Liang


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Hi,

I heard Linux HVM domain can accept vbd type hard drives. Can anyone explain 
how to do it in the config file?
I tried the following formats:
disk = [''phy:/dev/sda,xvda,w'' and ‘phy:/dev/sdb,xvdb,w’]

but these drives are still not recognized. Do I need to build 
para-virtualized driver before I can use vbd in Linux HVM?

Thanks,

Liang






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