zfs discuss - Jan 2007 - dumpadm and using dumpfile on zfs?

Hi All,

I''d like to set up dumping to a file. This file is on a mirrored pool 
using zfs. It seems that the dump setup doesn''t work with zfs. This 
worked for both a standard UFS slice and a SVM mirror using zfs.

Is there something that I''m doing wrong, or is this not yet supported
on
ZFS?

Note this is Solaris 10 Update 3, but I don''t think that should
matter..

thanks,

peter

Using ZFS
=======HON hcb116 ~ $  mkfile  -n 1g /var/adm/crash/dump-file
HON hcb116 ~ $ dumpadm -d /var/adm/crash/dump-file
dumpadm: dumps not supported on /var/adm/crash/dump-file


Using UFS
=======HON hcb115 ~ $  mkfile  -n 1g /data/0/test
HON hcb115 ~ $ dumpadm -d /data/0/test
      Dump content: kernel pages
       Dump device: /data/0/test (dedicated)
Savecore directory: /var/crash/stuff
  Savecore enabled: yes
HON hcb115 ~ $

Hi Peter,

This operation isn''t supported yet. See this bug:

http://bugs.opensolaris.org/view_bug.do?bug_id=5008936

Both the zfs man page and the ZFS Admin Guide identify
swap and dump limitations, here:

http://docs.sun.com/app/docs/doc/817-2271/6mhupg6gl?q=dump&a=view

Cindy


Peter Buckingham wrote:
> Hi All,
> 
> I''d like to set up dumping to a file. This file is on a mirrored
pool
> using zfs. It seems that the dump setup doesn''t work with zfs.
This
> worked for both a standard UFS slice and a SVM mirror using zfs.
> 
> Is there something that I''m doing wrong, or is this not yet
supported on
> ZFS?
> 
> Note this is Solaris 10 Update 3, but I don''t think that should
matter..
> 
> thanks,
> 
> peter
> 
> Using ZFS
> =======> HON hcb116 ~ $  mkfile  -n 1g /var/adm/crash/dump-file
> HON hcb116 ~ $ dumpadm -d /var/adm/crash/dump-file
> dumpadm: dumps not supported on /var/adm/crash/dump-file
> 
> 
> Using UFS
> =======> HON hcb115 ~ $  mkfile  -n 1g /data/0/test
> HON hcb115 ~ $ dumpadm -d /data/0/test
>       Dump content: kernel pages
>        Dump device: /data/0/test (dedicated)
> Savecore directory: /var/crash/stuff
>   Savecore enabled: yes
> HON hcb115 ~ $
> 
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Dumping to a file in a zfs file system is not supported yet.
The zfs file system does not support the VOP_DUMP and
VOP_DUMPCTL operations. This is bug 5008936 (ZFS and/or
zvol should support dumps).

Lori

Peter Buckingham wrote:
> Hi All,
>
> I''d like to set up dumping to a file. This file is on a mirrored
pool
> using zfs. It seems that the dump setup doesn''t work with zfs.
This
> worked for both a standard UFS slice and a SVM mirror using zfs.
>
> Is there something that I''m doing wrong, or is this not yet
supported
> on ZFS?
>
> Note this is Solaris 10 Update 3, but I don''t think that should
matter..
>
> thanks,
>
> peter
>
> Using ZFS
> =======> HON hcb116 ~ $  mkfile  -n 1g /var/adm/crash/dump-file
> HON hcb116 ~ $ dumpadm -d /var/adm/crash/dump-file
> dumpadm: dumps not supported on /var/adm/crash/dump-file
>
>
> Using UFS
> =======> HON hcb115 ~ $  mkfile  -n 1g /data/0/test
> HON hcb115 ~ $ dumpadm -d /data/0/test
>      Dump content: kernel pages
>       Dump device: /data/0/test (dedicated)
> Savecore directory: /var/crash/stuff
>  Savecore enabled: yes
> HON hcb115 ~ $
>
> _______________________________________________
> zfs-discuss mailing list
> zfs-discuss at opensolaris.org
> http://mail.opensolaris.org/mailman/listinfo/zfs-discuss

Lori Alt wrote:
> Dumping to a file in a zfs file system is not supported yet.
> The zfs file system does not support the VOP_DUMP and
> VOP_DUMPCTL operations. This is bug 5008936 (ZFS and/or
> zvol should support dumps).
Ok, that''s sort of what I expected thanks for the info.

peter