From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <936989973d9a874d3010347b7ae0d937@quanstro.net> References: <20090307054557.GB65509@mero.morphisms.net> <936989973d9a874d3010347b7ae0d937@quanstro.net> Date: Sat, 7 Mar 2009 07:39:00 -0800 Message-ID: Subject: Re: [9fans] Flash From: Russ Cox To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: b60933d0-ead4-11e9-9d60-3106f5b1d025 > i've been evaluating replacing the worm in the coraid fileserver's > sr15x1 with ssd. so far it looks promising. i don't understand this. your "worm" is magnetic disk, right? why would you put the ssd in the slow half (the worm) instead of the fast half (the cache)? similarly, someone on this thread said they'd use ssd for just the arenas (which are mostly linear access), when if i had to make the choice i would use it for just the index (which is mostly random access and would benefit more from dropping the seek penalities). russ