Hi, There are other issues with VxVM when it comes to LDoms. VxVM relies on the low level USCSI functions, which is why you can't use it in a guest domain at this time. However, in build 80 this should be fixed already. Look here:
http://www.opensolaris.org/os/community/arc/caselog/2007/672/ That should enable guest domains to use VxVM. Also, in build 75 the vdisk driver was updated so that you can virtualize SVM/ZFS/VxVM volumes and use them as full disks in guest domains. I have a few guest domains running on ZFS volumes as their boot devices. When it comes to multi-pathing, the vendors (EMC, HDS, etc) will have to update their software so the devices can be virtualized properly. At this point, if you try to virtualize a power-path device, you end up with nothing in the guest domain:( *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Octave J. Orgeron Solaris Systems Engineer http://www.opensolaris.org/os/community/sysadmin/ http://unixconsole.blogspot.com unixconsole at yahoo.com *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* ----- Original Message ---- From: Victor Engle <[email protected]> To: Brian Glynn <Brian.Glynn at sun.com> Cc: Octave Orgeron <unixconsole at yahoo.com>; ldoms-discuss at opensolaris.org Sent: Tuesday, January 8, 2008 11:56:22 AM Subject: Re: [ldoms-discuss] Powerpath support in control domain ? I had assumed that the problem with VxVM and LDOMs was in how VxVM DMP works. When using VxVM, the device virtualization occurs after all the devices are discovered and device files created. VxVM DMP then virtualizes the devices into a /dev/vx/dmp... device so then if you use the /dev/vx device to create volumes and filesystems they are protected from path failures. My assumption was that the /dev/vx devices were not suitable for virtualizing and exporting to a logical domain. I know that some multipathing solutions work in a similar fashion compared with STMS like SecurePath for example. With SecurePath the devices in /dev/dsk link to swsp devices in the /devices tree. With SecurePath the /dev/dsk/cxtxdxsx devices may be used directly just as with STMS. >From Octave's reply it sounds as though it is incorrect to assume that /dev/dsk/ctd devices will work when they are controlled by none-STMS multipathing solutions. On Jan 8, 2008 12:34 PM, Brian Glynn <Brian.Glynn at sun.com> wrote: > > Thanks for the prompt response Octave, > > I don't really care if its supported or not as the target environment is > PoC / dev, rather will it work.... > > Adios > > Brian > > Octave Orgeron wrote: > > As far as I know at this point, you can only use STMS/MPXIO. Powerpath, > HDLM, VxDMP, etc are not supported. > > > *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* > Octave J. Orgeron > Solaris Systems Engineer > http://www.opensolaris.org/os/community/sysadmin/ > http://unixconsole.blogspot.com > unixconsole at yahoo.com > *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* > > > > ----- Original Message ---- > From: Brian Glynn <Brian.Glynn at Sun.COM> > To: ldoms-discuss at opensolaris.org > Sent: Tuesday, January 8, 2008 10:25:42 AM > Subject: [ldoms-discuss] Powerpath support in control domain ? > > Hi All, > > Have been trawling but yet to get a clear answer... > > Can Powerpath devices, visible in the control domain, be used to support > vsd devices for guest ldoms ? If so what versions of FW / Powerpath have > been seen working and details of any gotcha's would also be appreciated > (other than the need for a valid vtoc on the target device). > > Proven syntax would be even better :-) > > Adios > > Brian > > > ________________________________ > Never miss a thing. Make Yahoo your homepage. > ________________________________ > > _______________________________________________ > ldoms-discuss mailing list > ldoms-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss > > > _______________________________________________ > ldoms-discuss mailing list > ldoms-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/ldoms-discuss > > ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping
