#63 Active-Pasive cluster (Open ZFS) and Persistent Reservations

[Adam Błaszczykowski]

Hi,
I'm using scst 3.6 on kernel 5.15.74 and OpenZFS with Active-Pasive cluster

I have two nodes - active and passive. The active host has Pool from local and remote disks. The target is zvol (LUN0) - it is a block device, which is not a specific disk but consists of many devices.
Zvol is only visible on the active node as /dev/tank/zvol1
To test the operation of PR (persistent reservations) on a passive node, enter the device as below, but it ends with an error

echo "add_device blockio filename=/dev/tank/zvol1" >/sys/kernel/scst_tgt/handlers/vdisk_blockio/mgmt
-bash: echo: write error: No such file or directory

Is it possible to indicate the device differently on the passive node?

Regards
Adam