Date: Mon, 22 Aug 2016 12:18:11 -0500 From: Linda Kateley <lkateley@kateley.com> To: freebsd-fs@freebsd.org Subject: Re: Recommended HBA for ZFS, contemporary Message-ID: <e48e994b-f3c4-f952-5219-9d246088e3bb@kateley.com> In-Reply-To: <alpine.BSF.2.00.1608221926550.82304@woozle.rinet.ru> References: <alpine.BSF.2.00.1608221904270.82304@woozle.rinet.ru> <ba972848-140c-31a8-505e-2470ed750fc8@denninger.net> <alpine.BSF.2.00.1608221926550.82304@woozle.rinet.ru>
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On 8/22/16 11:30 AM, Dmitry Morozovsky wrote: > Karl, > > On Mon, 22 Aug 2016, Karl Denninger wrote: > >> I'm still a fan of the LSI SAS-9211 cards along with (for higher >> density) a SAS port expander. I've been extremely happy with this >> combination with one caveat -- most systems must boot from the actual >> card and not a port on the expander(s) you connect to it due to BIOS >> constraints. They're also crazily cost-effective on-balance. >> >> In practice this means you have 4 ports on the base card available (2 >> used for mirrored boot drives, 2 for other things) and the rest of the >> disks go on the expander, or you run more than one card. >> >> Whether you can actually saturate this combination depends on what you >> attach. In large configurations, especially those stuffed with SSDs, >> you can -- at which point something faster such as the 93xx series which > which immediately leads me to the question: what is the driver supporting 9300 > in HBA mode? Quick googling does not reveal interoperability, and 9300 is not > in hardware list for FreeBSD yet. The avago website has driver firmware combos for all of the different cards. The only ones that are troublesome are the onboard supermicro. I was told by an SE at avago that you need to go to supermicro for the oem firmware. ftp.supermicro.com > >> are materially faster (but still in "host" mode as opposed to any sort >> of "smart", "raid" or "buffered" mode) should be considered. >> >> The "smarter" the card the dumber the results tend to be when ZFS is in >> use, in my experience :) > Yes, I'm well aware of it ;) > > Thanks! > >
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