hi Victor, Please see my comments inline...
On Jan 9, 2008 11:45 AM, Victor Engle <victor.engle at gmail.com> wrote: > > Do you mean that this is not a valid use-case, or do you see potential > > issues with exporting DMP metanodes (/dev/vx/dmp) as full disks to > > guest Ldoms? > > Hi Misha, > > No, I think it is a reasonable use case it's just that when I first > started looking into LDOMs I read the release notes for 1.01 and there > was a note saying that Veritas DMP controlled devices were not > supported for exporting as a vdisk. It wasn't clear from the notes why > this wouldn't work. [Misha] Veritas DMP devices can be exported as virtual disks to guest Ldoms, provided you have applied the following workaround on the control domain: Workaround: If Veritas Volume Manager (VxVM) is installed in the control domain, then before exporting a full disk to a guest LDom, you first need to disable the exclusive open done by the vds driver by setting the kernel global variable "vd_open_flags" to "0x3". You can disable the exclusive open on the running system with the following command: echo 'vd_open_flags/W 0x3' | mdb -kw You also need to add the change in /etc/system to make it persistent across reboots: set vds:vd_open_flags = 0x3 Note: This is a temporary workaround until the SUN bug id 6528156 is fixed. > I would assume that veritas could be supported in other ways with > LDOMs though. In my test setup I have a T2000 in a split config so > that my veritas LDOM has it's own HBAs so I can provision luns > directly from the SAN to that LDOM. In this case I am running STMS and > zfs in the control domain. > > Also if I needed to export storage from an LDOM running vxvm then I > think I could create a veritas volume and filesystem, mount the > filesystem and use mkfile to create files which I could then export to > other LDOMs as vdisks. [Misha] That is correct. Also you can refer to the following Veritas documentation on how you can use Storage Foundation products in the Ldoms environment: http://support.veritas.com/docs/293324 Regards, Misha. > Regards, > Vic >
