Date: Sat, 16 Sep 2006 11:26:58 -0500 From: Craig Boston <craig@feniz.gank.org> To: Danny Braniss <danny@cs.huji.ac.il> Cc: Matthew Jacob <lydianconcepts@gmail.com>, freebsd-stable@freebsd.org Subject: Re: iSCSI HBAs Message-ID: <20060916162657.GA31096@nowhere> In-Reply-To: <E1GOZOi-0009lJ-7g@cs1.cs.huji.ac.il> References: <450B62C9.5000706@inoc.net> <7579f7fb0609152252y5660195fo419a67dbe90904cd@mail.gmail.com> <450BE564.20106@inoc.net> <E1GOZOi-0009lJ-7g@cs1.cs.huji.ac.il>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, Sep 16, 2006 at 03:35:52PM +0300, Danny Braniss wrote: > being involved with the iSCSI initiator for FreeBSD, I can't see where > this can help for a diskless host, or in other words, what's > wrong with NFS? Well, for one thing since iSCSI is designed for SAN use, the filesystem can safely assume that nothing else is accessing it concurrently and do a lot more aggressive caching. NFS has to play it safe and check with the server every time a file is accessed to make sure it hasn't changed. It sounds to me like the OP is thinking about servers in a large data center booting off an iSCSI SAN. Makes migrating off of dead hardware to a new machine (or even a VM) a snap. > also, the TOE cards are not that cheep either :-) my 2c, danny They're usually cheaper than fibre channel HBAs though ;-) Craig
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20060916162657.GA31096>