Hello, I would like to use nas4free under xcp 1.6. I install it under full HVM using "other install media". Now I am attaching 4 hdds as external disks. The vm sees at most two hdds, I suppose because of bios support (1 boot + 1 cdrom + 2 hdds= 4 hdds). I need to use more disks, is it possible? If not, it seems to me a serious limit. Mario
On 16/01/13 09:49, Mario Giammarco wrote:> Hello, > I would like to use nas4free under xcp 1.6. > I install it under full HVM using "other install media". > Now I am attaching 4 hdds as external disks. > The vm sees at most two hdds, I suppose because of bios > support (1 boot + 1 cdrom + 2 hdds= 4 hdds). > > I need to use more disks, is it possible? > > If not, it seems to me a serious limit.The default IDE device emulated is a PIIX3, which supports up to four IDE devices. Since NAS4Free is based on FreeBSD, I think you could recompile a custom kernel with the PVHVM config file, in order to use PV drivers for IO, which will improve performance and allow you to use more than 4 disk devices. This blog post may be of help: http://dave.recoil.org/blog/posts/2011-06-11-freebsd-xenhvm/
-----Original Message----- From: xen-users-bounces@lists.xen.org [mailto:xen-users-bounces@lists.xen.org] On Behalf Of Mario Giammarco Sent: Wednesday, January 16, 2013 9:49 AM To: xen-users@lists.xensource.com Subject: [Xen-users] Max hard disks supported by XCP 1.6 Hello, I would like to use nas4free under xcp 1.6. I install it under full HVM using "other install media". Now I am attaching 4 hdds as external disks. The vm sees at most two hdds, I suppose because of bios support (1 boot + 1 cdrom + 2 hdds= 4 hdds). I need to use more disks, is it possible? If not, it seems to me a serious limit. Mario -----Original Message----- Thought so as well, initially. It is just how you look at it.... Do you need _all_ of your disks during installation? I mean, after installation you don''t need the cd/dvd-rom anymore. Other storage area''s (/srv, /home) can always be added by means of NFS/SMB/iSCSI later on. If you really need to give to domU a large number of raw devices, one might do pci-forwarding of a sata/scsi-card. Hw ______________________________________________________________________ Dit bericht kan informatie bevatten die niet voor u is bestemd. Indien u niet de geadresseerde bent of dit bericht abusievelijk aan u is toegezonden, wordt u verzocht dat aan de afzender te melden en het bericht te verwijderen. De Staat aanvaardt geen aansprakelijkheid voor schade, van welke aard ook, die verband houdt met risico''s verbonden aan het elektronisch verzenden van berichten. This message may contain information that is not intended for you. If you are not the addressee or if this message was sent to you by mistake, you are requested to inform the sender and delete the message. The State accepts no liability for damage of any kind resulting from the risks inherent in the electronic transmission of messages.
I suppose I cannot do pci-forwarding of sata controller if I do not have hardware IOMMU/vt-d. Anyway I need a custom compiled nas4free to use pv drivers. Any help for this? Thanks, Mario 2013/1/31 <J.Witvliet@mindef.nl>> -----Original Message----- > From: xen-users-bounces@lists.xen.org [mailto: > xen-users-bounces@lists.xen.org] On Behalf Of Mario Giammarco > Sent: Wednesday, January 16, 2013 9:49 AM > To: xen-users@lists.xensource.com > Subject: [Xen-users] Max hard disks supported by XCP 1.6 > > Hello, > I would like to use nas4free under xcp 1.6. > I install it under full HVM using "other install media". > Now I am attaching 4 hdds as external disks. > The vm sees at most two hdds, I suppose because of bios > support (1 boot + 1 cdrom + 2 hdds= 4 hdds). > > I need to use more disks, is it possible? > > If not, it seems to me a serious limit. > > Mario > -----Original Message----- > Thought so as well, initially. > > It is just how you look at it.... > Do you need _all_ of your disks during installation? > I mean, after installation you don''t need the cd/dvd-rom anymore. > > Other storage area''s (/srv, /home) can always be added by means of > NFS/SMB/iSCSI later on. > > If you really need to give to domU a large number of raw devices, one > might do pci-forwarding of a sata/scsi-card. > > Hw > > ______________________________________________________________________ > Dit bericht kan informatie bevatten die niet voor u is bestemd. Indien u > niet de geadresseerde bent of dit bericht abusievelijk aan u is > toegezonden, wordt u verzocht dat aan de afzender te melden en het bericht > te verwijderen. De Staat aanvaardt geen aansprakelijkheid voor schade, van > welke aard ook, die verband houdt met risico''s verbonden aan het > elektronisch verzenden van berichten. > > This message may contain information that is not intended for you. If you > are not the addressee or if this message was sent to you by mistake, you > are requested to inform the sender and delete the message. The State > accepts no liability for damage of any kind resulting from the risks > inherent in the electronic transmission of messages. >_______________________________________________ Xen-users mailing list Xen-users@lists.xen.org http://lists.xen.org/xen-users