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StartWind iSCSI Initiator 5.6 slow synchronization

Initiator (iSCSI, FCoE, AoE, iSER and NVMe over Fabrics), iSCSI accelerator and RAM disk

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StartWind iSCSI Initiator 5.6 slow synchronization

Postby Ayaz » Wed Nov 13, 2013 5:14 pm

I have two iSCSI target servers and a client on 1gbps switch with Jumbo frames enabled.
Created RAID-1 Mirror, however the synchronization speed is too slow (13MB)

Networking is good as i see 70MB usage while doing Target to target replication.

Tested on another set of servers, looks like synchronization has some sort of network usage cap.
Last edited by Ayaz on Wed Nov 13, 2013 8:42 pm, edited 1 time in total.
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Re: StartWind iSCSI Initiator 5.6 slow syncronization

Postby anton (staff) » Wed Nov 13, 2013 8:40 pm

Do not use initiator-side mirror. This feature is deprecated. Please stick with a target-side MPIO-based HA. Thanks!
Regards,
Anton Kolomyeytsev

Chief Technology Officer & Chief Architect, StarWind Software

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Re: StartWind iSCSI Initiator 5.6 slow synchronization

Postby Ayaz » Wed Nov 13, 2013 8:44 pm

Thanks Anton, I'll consider your suggestion. [Tested on another set of servers, looks like synchronization has some sort of network usage cap.]
Can you tell me if there is some sort of network usage cap?
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Re: StartWind iSCSI Initiator 5.6 slow synchronization

Postby anton (staff) » Wed Nov 13, 2013 9:44 pm

There are no limitation applied. So as it's point-to-point expect to have 1/2 of the network bandwidth maximum. Either way not supported for production.

Ayaz wrote:Thanks Anton, I'll consider your suggestion. [Tested on another set of servers, looks like synchronization has some sort of network usage cap.]
Can you tell me if there is some sort of network usage cap?
Regards,
Anton Kolomyeytsev

Chief Technology Officer & Chief Architect, StarWind Software

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