I'm new to DSS and I'm trying to replace a handmade iSCSI SAN setup with DSS, and I'm running into various problems.
iSCSI failover is correctly configured I believe: the secondary node takes resources when the primary goes down.
The first problem is: we have to shutdown iSCSI failover to add an iSCSI target to the failover. That means everything connected will either hang or crash each time we add a target.
That is a design flaw being worked on as I read. I believe I can do nothing on my end about that.
The second problem is: the web interface is painfully slow or even timeouts when "too many" (is that even possible ?) are created.
I have currently 50 iSCSI volumes and targets, and it takes several minutes to list them.
Modifying a volume (add/remove replication) via the webinterface takes the same amount of time.
Hardware is the same on both nodes:
- dual xeon quadcore
- 16 gigabytes of RAM
- areca 1680
- 8x 1terabyte HDD, RAID5 with no spare (7 terabytes effective)
- 4 gigabit network, one dedicated to replication.
Did I miss something that could lead to such slowness ?