TL-D400S JBOD Enclosure, command timeouts using LSI SAS (IT Mode)
Hi Everyone,
I was looking for a new JBOD enclosure to store 4 drives in, without the overhead from USB or other connectors. This means I need a SAS enclosure, that is self contained and self-powered
The search led me to the TL-D400S, which is a JBOD enclosure with a SAS SFF-8088 connector.
I got this connected to an LSI SAS2008 card on a machine running FreeBSD, unfortunately I'm getting command timeouts randomly, that can only be resolved by the system sending a reset and retrying the command. This means that at minimum my system freezes for 8 seconds before the timeout I've configured (kern.cam.da.default_timeout=8) kicks in. Normally this is as much as 30 seconds.
Now I see that QNAP specifically says they're using a SATA redriver here, which I assume is causing some trouble with my card. However at the same time... We're doing SATA, why is it being so difficult? Just passthrough the drives..
Anyone else has experience with it? I think I'm about to return it as I can't get it to work without freezing every couple of minutes under high I/O load.
Thanks!