[OpenIndiana-discuss] [zfs-discuss] Question about WD drives with Super Micro systems

[Roy Sigurd Karlsbakk]

> The other overlooked thing is the different topology ie. native sata
> against sas translated sata and then sas expander as well.
> 
> I have had seagate ST3000641's just refuse to run with expanders, but
> work diecty connected to the sas controller.
> 
> It's funny how all this reminds me of fibre channel behaviour in it's
> early days.

Then why do Hitachi and Seagate drives work flawlessly for me? We have some slow Seagate drives (ST32000542AS) in two chassises, and those just work. Another server, using Hitachi HDS721010CLA332 drives also just works - one dead drive during burn-in, and that was all. Western drives on direct attach works, but with SAS expanders, we get I/O errors (as reported by zpool and iostat) on high load.

Vennlige hilsener / Best regards

roy
--
Roy Sigurd Karlsbakk
(+47) 97542685
roy at karlsbakk.net
http://blogg.karlsbakk.net/
--
I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.