25.2 Setup Appliance Z-RAID SSF (ZPOOL-RAID with Storage and Service Failover)
The basic option is using two Storage Appliances where each offer a local Pool as a LUN via iSCSI. An Initiator
on one of them creates a Z-RAID Pool over both LUNs and offers services like NFS or SMB. On problems, the
Initiator on the second server imports the Z-RAID and switch NFS/SMB services over a common virtual HA ip.
You can extend this with two dedicated Storageheads for the Initiator part that creates the Z-RAID Pool on
LUNs from up to 6 Storagenodes for a network Raid-1/Z. Main advantage of the dedicated solution is that all
LUNs on a Storagehead failover stay intact and that you have a better control of the LUN access as you can
switch a Target Sub-ip to be only in the subnet of one Initiator. This avoids the very critical situation where
boths Heads are trying to access the LUNs at the same time.
Содержание ZFS Storage
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