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Operating Systems Solaris ZFS: /system/zones "respawning" on rpool Post 302984319 by X96 on Monday 24th of October 2016 01:48:43 PM
Old 10-24-2016
ZFS: /system/zones "respawning" on rpool

Hi,

I have this fresh installation of Solaris 11.3 sparc.
I have two zfs pools both using two disks in mirroring mode, both are online.

I want to move /system/zones, currently rpool/VARSHARE/zones, from rpool to the other zfs pool so my zones don't consume space on the disks allocated to rpool. Since it's a fresh install, /system/zones is currently empty, no zones have been created yet.

I boot the system in signle user mode
Then destroy rpool/VARSHARE/zones:
Code:
zfs destroy rpool/VARSHARE/zones

create the new volume and set mount point:
Code:
zfs create -o mountpoint=/system/zones storage/zones

After rebooting the system, rpool/VARSHARE/zones is automatically recreated and I have this error message:
Code:
cannot mount 'zpool/zones' on '/system/zones': mountpoint or dataset is busy
... transitioned to maintenance

If instead of destroying rpool/VARSHARE/zones I change it's mountpoint to none, everything seems to work as wanted.

So here's the question, what am I doing wrong? why is rpool/VARSHARE/zones respawning when destroyed?

Thanks and sory for the long post.



Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!

Last edited by RudiC; 10-24-2016 at 03:02 PM.. Reason: Added CODE tags.
 

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brands(5)						Standards, Environments, and Macros						 brands(5)

NAME
brands - alternate operating environments for non-global zones DESCRIPTION
The branded zone (BrandZ) framework extends the Solaris Zones infrastructure described in zones(5) to include the creation of brands, which provide non-global zones that contain non-native operating environments. The term "brand" can refer to a wide range of operating environments. All brand management is performed as extensions to the current zones structure. Every zone is configured with an associated brand. The brand type is used to determine which scripts are executed when a zone is installed and booted. In addition, a zone's brand is used to properly identify the correct application type at application launch time. The default is the native brand. A branded zone will support exactly one brand of non-native binary, which means that a branded zone provides a single operating environ- ment. Once a zone has been assigned a brand, that brand cannot be changed or removed. BrandZ extends the zones tools in the following ways: o A brand is an attribute of a zone, set at zone create time. o The zonecfg tool (see zonecfg(1M)) is used to set a zone's brand type and configure the zone. o The zoneadm tool (see zoneadm(1M)) is used to report a zone's brand type and administer the zone. Device Support The devices supported by each zone are documented in the man pages and other documentation for that brand. The zones infrastructure detects any attempt to add an unsupported device and issues a warning to the administrator. If the administrator chooses to add an unsupported device despite that warning, that device might or might not work as expected. The configuration will be untested and unsupported. ATTRIBUTES
See attributes(5) for a description of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWzoneu | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
mdb(1), zlogin(1), zonename(1), dtrace(1M), in.rlogind(1M), sshd(1M), zoneadm(1M), zonecfg(1M), kill(2), priocntl(2), getzoneid(3C), ucred_get(3C), getzoneid(3C), proc(4), attributes(5), lx(5), native(5), privileges(5), zones(5), lx_systrace(7D), crgetzoneid(9F) SunOS 5.11 13 Feb 2009 brands(5)
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