smart trams wrote:
Hi All,
What I all want is a way to disable startup import process of ZFS. So on every server reboot, I want to manually import the pools and mount on required mount point.
zpool attributes like mountpoint=legacy or canmount affect pool mounting
behavior and no command found for disabling startup import process. My systems
are Solaris running on SPARC systems.
Why I need this feature? Good Question! I've a active/standby clustered
environment with 1 shared SAN disk with 2 servers. Shared disk have one ZFS
pool [xpool] that must be always imported and mounted on one server on any
time. When the active server dies, my cluster software [Verites Cluster]
detects the problem and imports the 'xpool' [with -f switch] on standby server
and starts the applications.
Everything is happy till now. When the died server boots up, it tries to
have the 'xpool' pool and lists it as one of it's pools. Note that I didn't
mentioned about mounting in any mountpoint! only listing as it's current pools.
The problem now rise up that two nodes are now trying to have write activities
on pool and the pool gets inconsistent! What I want is to disable this ZFS
behaviour and force it to wait until my cluster software decides about the
active server.
Use the cachefile=none option whenever you import the pool on either server:
zpool import -o cachefile=none xpool
--
Dave
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