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Flag day for LDoms: Disk Volumes Export Changes - FWARC 2007/122

Date: Sun, 16 Sep 2007 13:47:55 -0700
From: Alexandre Chartre <Alexandre.Chartre at Sun dot COM>
To: on-all at eng dot sun dot com, onnv-gate at onnv dot eng dot sun dot com
Subject: Flag day for LDoms: Disk Volumes Export Changes - FWARC 2007/122


The putback of:

FWARC 2007/122 VIO MD node updates
FWARC 2007/363 VIO vDisk MD node updates
6514091 vDisk server should export volumes as full disks
6528156 opening devices exclusively from vds causes several problems
6591399 vds prints file lookup error during service domain boot

is a minor flag day for LDoms users who export disk volumes (like ZFS, SVM
or VxVM volumes) as virtual disks. Until now disk volumes were exported as
single slice disks. With this putback, disk volumes will now be exported as
full disks by default and can optionally be exported as single slice disks.

If you are using LDoms and exporting disk volumes then in order to preserve
the current behavior you will need to:

- Upgrade the system to LDoms 1.0.1 (firmware and LDoms Manager). The latest
   LDoms 1.0.1 components are available in /ws/ldoms/1.0.1/

- Remove the current LDoms manager package:

   # svcadm disable ldmd
   # pkgrm SUNWldm

- Install a new version of the LDoms manager:

   # pkgadd -d /workspace/sharakan/ldoms/zeus-misc-1.0.1/pkgarchive/
   # svcadm enable ldmd

- Unexport any disk volume exported as a virtual disk:

   # ldm rm-vdsdev <volume_name>@<service_name>

- Export the same disk volumes as the same virtual disks but using the "slice"
   option:

   # ldm add-vdsdev options=slice <volume_device> <volume_name>@<service_name>

If you are currently exporting disk volumes as virtual disks, and you don't
update your configuration as described above, your disk volumes will be
exported as unformatted virtual disks instead of single slice disks.


Alexandre Chartre.