zfs discuss - Oct 2010 - best way to check zfs/zpool version programatically

Hi,

what is the right way to check versions of zfs and zpool ??

I am writing piece of code which call zfs command line further. Before actually
initiating and going ahead I wan to check the kind of version zfs and zpool
present on the system.

As an example "zpool split" is not present on prior to 134 build (not
sure exactly) so if an application using my code should fail if "zpool
split" is called.

Is there any zfs version or zpool version command present in recent updates? or
is there any other way ( reading some file ) I can get these details?


Thanks & Regards,
sridhar.
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This message posted from opensolaris.org

On Sun, Oct 10, 2010 at 3:18 AM, sridhar surampudi
<toyours_sridhar at yahoo.co.in> wrote:
> Hi,
>
> what is the right way to check versions of zfs and zpool ??
>
> I am writing piece of code which call zfs command line further. Before
actually initiating and going ahead I wan to check the kind of version zfs and
zpool present on the system.
>
> As an example "zpool split" is not present on prior to 134 build
(not sure exactly) so if an application using my code should fail if "zpool
split" is called.
>
> Is there any zfs version or zpool version command present in recent
updates? or is there any other way ( reading some file ) I can get these
details?
>
>
zfs upgrade
zpool upgrade

?


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On Oct 9, 2010, at 1:18 PM, sridhar surampudi wrote:
> Hi,
> 
> what is the right way to check versions of zfs and zpool ??
zpool get version POOLNAME
zfs get version DATASET
> I am writing piece of code which call zfs command line further. Before
actually initiating and going ahead I wan to check the kind of version zfs and
zpool present on the system.
> 
> As an example "zpool split" is not present on prior to 134 build
(not sure exactly) so if an application using my code should fail if "zpool
split" is called.
> 
> Is there any zfs version or zpool version command present in recent
updates? or is there any other way ( reading some file ) I can get these
details?
For easy parsing, 
zfs get -H -o value version DATASET

Alas, there is not a zpool equivalent :-(
zpool get version POOLNAME | tail -1 | awk ''{print $3}''
 -- richard