Date: Mon, 20 May 2013 08:53:36 -0600 From: Josh Beard <josh@signalboxes.net> To: freebsd-fs@freebsd.org Subject: L2ARC and ZIL on same SSD? Message-ID: <CAHDrHSv-%2BPjLiPcZrE7CJx85Qyo%2B%2BYv%2Bc_1myNH_mZ1nS5Xwog@mail.gmail.com>
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Hello, I have a file server running 9.1-RELEASE with 24 GB of RAM and a 6 TB zpool spread across 12 500GB disks in two raidz1 and 2 spares. This server houses hundreds of home directories for end-users and stays pretty busy with both read and writes. I'm planning to add two SSDs soon (128 GB each) to help performance and was planning to mirror them. I was curious if having the L2ARC and ZIL on the same disks (mirrored) is okay. With some searching, I haven't seen any "official" word on this. I've seen some folks say not to and others recommend it. Adding a second set of SSDs isn't desirable, as I'll start cutting into my available storage capacity (16 bay system). Any advice or experience with this? Thanks, Josh
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