Re: [zones-discuss] maxuproc

2008-02-15 Thread Gael
Be aware of one caveat here,  defunct/zombies processes not attached to a
LWP won't be accounted for ... and it does hurt badly when happening in
production with a broken application ... :(

On 2/14/08, Dan Price [EMAIL PROTECTED] wrote:

 FYI: In S10U4 and higher, you can simply do:

 zonecfg:zone1 set max-lwps=15000

 (Thanks to Steve and Jerry!)

-dp

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 Daniel Price - Solaris Kernel Engineering - [EMAIL PROTECTED] -
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Gael Martinez
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[zones-discuss] zones on iSCSI LUNs

2008-02-15 Thread Mike Gerdts
I have three (hopefully) quick questions:

- Are there any current (S10) or future incompatibilities with zone roots on
  iscsi?
- Are there any current (S10) or future incompatibilities with zone roots on
  SVM disk sets?
- Are there any current (Nevada) or future incompatibilities with
  having one zfs pool per zone?  Zone cloning with zfs clones will be
  broken - anything else?


And here's why I ask...

I'm working on some improvements to my existing zone configuration and
management methodology.  As much as possible I am looking to have the
improvements be future looking enough that as future improvements come
about I have to do the minimal rework.

My understanding is that:

- Today each zonepath must exist on a UFS (or VxFS or possibly QFS)
  file system.  Read another way, ZFS is not supported for zones
  today.  The key reason for this is the lack of support for upgrade
  and sporadic support for patching of zones on ZFS.
- In the next release of Solaris, zones will have to be on ZFS due to
  expected changes in packaging, patching, and installation.
- There will be a transition period between zfs not supported and
  zfs required that will likely start with the release of S10U6.

My anticipated direction is to discontinue the use of local (within
the server chassis) storage for zone roots and transition to using
(likely) one or more iSCSI LUNs per zone.  Initially, the iSCSI LUNs
would either have UFS file systems on them directly or use SVM
disksets to allow soft partitions.  When the time is right, new LUNs
would be allocated for ZFS and data will be migrated.  Any SVM disk
sets will be destroyed in favor of using ZFS.

-- 
Mike Gerdts
http://mgerdts.blogspot.com/
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Re: [zones-discuss] zones on iSCSI LUNs

2008-02-15 Thread Mike Gerdts
On Fri, Feb 15, 2008 at 12:50 PM, Ben Rockwood [EMAIL PROTECTED] wrote:
 Mike Gerdts wrote:
   My understanding is that:
[...]
   - In the next release of Solaris, zones will have to be on ZFS due to
 expected changes in packaging, patching, and installation.

  I am aware of no such change.

  - There will be a transition period between zfs not supported and
 zfs required that will likely start with the release of S10U6.

  Same here, I'm not aware of this change and would by highly skeptical.
  Nevada hasn't taken this turn, and again, even if it did that would be
  imposed simply by the configuration tools and easy to bypass.

This is the best reference I can find right now.

http://www.opensolaris.org/os/project/caiman/Snap_Upgrade/Notes/Snap_Containers/

There have been several discussions on one or more installation
related lists (pkg-discuss, install-discuss, caiman-discuss) that have
confirmed that the next generation installation and packaging commands
will have ZFS as a prerequisite (for global zone root as well).

-- 
Mike Gerdts
http://mgerdts.blogspot.com/
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