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List:       opensolaris-storage-discuss
Subject:    Re: [storage-discuss] curious COMSTAR iSCSI target timeout
From:       Erast <erast () gnusolaris ! org>
Date:       2010-06-08 4:31:29
Message-ID: 4C0DC7A1.50200 () gnusolaris ! org
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On 06/07/2010 06:12 PM, Andrew Jones wrote:
> We've built a SAN based on NexentaStor 3.0, and have generally had a good \
> experience with the flexibility and performance of ZFS and the relatively new \
> COMSTAR kernel mode iSCSI story. 
> However, we are experiencing a frustrating and thus far terminal robustness issue \
> which is keeping the box out of production: whenever we initiate iSCSI from our \
> Hyper-V cluster nodes and turn on deduplication and compression (and sometimes even \
> when we turn both of them off), and we hammer high bandwidth serial writes against \
> the COMSTAR iSCSI targets, the OpenSolaris box tends to trigger timeouts and other \
> iSCSI failures in the Hyper-V iSCSI initiator. In the case of our Hyper-V cluster, \
> this causes our Cluster Shared Volumes to fail, which in turn causes all of our VMs \
> to reset.

what is the output of NMC command "show appliance version" ?

is the OS/Kernel version 3.0.2a or less?

Thanks
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