Fujitsu RX300S7 with FC connect to disk array Eternus DX90 s2

[krupecek]

Hello,
i need some help, i have 3 node Fujitsu RX300S7 connected to Eternus DX90 S2 by fibre channel (2 FC connections each node).
I need to do replication ( when suddenly first node poweroff ---> fast switch to second ) service is very important.
Which Storage Type i need to use? ZFS ? or something else.
I read ZFS is only for local disks - not for arrays but i dont know what i can do.
Replication i seen need ZFS.

 

[LnxBil]

Why replication? You have a dedicated shared storage. Just do it as (shared) LVM from each node and you will have

• data on all nodes
• live migration without disk copying
• but no snapshot capabiliy

 

[krupecek]

i create multipath, added vgcreate /dev/mapper/mpatha, added LVM to both nodes --> screenshot, and when i migrate on second node that says: Migration with local disk might take long: eternus-lun1:vm-100-disk-0 (8.00 GiB) - its not instant but i need this.
WITH HA i can do it?

 

[_gabriel]

isn't the mounted iso prevent live migration ?

 

[krupecek]

removed and works - but i need something like that so when unpluging power cords from first node i need to my services works

 

[LnxBil]

Don't use local ISO files. Just create a VM that exports its data via NFS to the cluster. Put isos on this VM then you have also HA Iso storage and can migrate without any problems.

 

[Falk R.]

removed and works - but i need something like that so when unpluging power cords from first node i need to my services works

When HA is configured, the VM starts after a safety Timeout. (Roundabout 2 Minutes)

 

[krupecek]

allright, i unplug cord and works really nice so thanks guys <3