How to split a zfs/zpool mirror for backout purposes? Post: 302954022

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Operating Systems Solaris How to split a zfs/zpool mirror for backout purposes? Post 302954022 by feroccimx on Thursday 3rd of September 2015 12:23:42 PM

09-03-2015

Registered User

How to split a zfs/zpool mirror for backout purposes?

Hello,

I am upgrading Veritas from 5.1 to 6.0.1/6.0.5 in a Solaris 10 u8 server with OS mirrored (rpool) in zfs/zpool configuration.

I need to split it to have a quick way to backout in case of failure (make splitted mirror side bootable for a quick revert, like booting from it). I remember that I did that in SVM or when OS drive was encapsulated in VxVM, but don't know how to do it in zfs/zpool.

Please your assistance.

Code:

$ zpool list
NAME    SIZE   USED  AVAIL    CAP  HEALTH  ALTROOT
rpool   136G  83.4G  52.6G    61%  ONLINE  -
$
$ zpool status
  pool: rpool
 state: ONLINE
 scrub: none requested
config:

        NAME          STATE     READ WRITE CKSUM
        rpool         ONLINE       0     0     0
          mirror      ONLINE       0     0     0
            c0t0d0s0  ONLINE       0     0     0
            c0t1d0s0  ONLINE       0     0     0

errors: No known data errors

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systemd-networkd-wait-online.service

SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8) 		     systemd-networkd.service			   SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)

NAME

       systemd-networkd-wait-online.service, systemd-networkd-wait-online - Wait for network to come online

SYNOPSIS

       systemd-networkd-wait-online.service

       /lib/systemd/systemd-networkd-wait-online

DESCRIPTION

       systemd-networkd-wait-online is a one-shot system service that waits for the network to be configured. By default, it will wait for all
       links it is aware of and which are managed by systemd-networkd.service(8) to be fully configured or failed, and for at least one link to
       gain a carrier.

OPTIONS

       The following options are understood:

       -i, --interface=
	   Network interface to wait for before deciding if the system is online. This is useful when a system has several interfaces which will
	   be configured, but a particular one is necessary to access some network resources. This option may be used more than once to wait for
	   multiple network interfaces. When used, all other interfaces are ignored.

       --ignore=
	   Network interfaces to be ignored when deciding if the system is online. By default, only the loopback interface is ignored. This option
	   may be used more than once to ignore multiple network interfaces.

       --timeout=
	   Fail the service if the network is not online by the time the timeout elapses. A timeout of 0 disables the timeout. Defaults to 120
	   seconds.

SEE ALSO

       systemd(1), systemd-networkd.service(8)

systemd 237												   SYSTEMD-NETWORKD-WAIT-ONLINE.SERVICE(8)