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ZFS: WriteBack versus SSD-ZIL
- Subject: ZFS: WriteBack versus SSD-ZIL
- From: richard.pieri-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org (Richard Pieri)
- Date: Fri, 5 Mar 2010 10:55:35 -0500
- In-reply-to: <000a01cabc68$eb6e5e60$c24b1b20$@com>
- References: <000a01cabc68$eb6e5e60$c24b1b20$@com>
On Mar 5, 2010, at 8:36 AM, Edward Ned Harvey wrote: > > I have a hypothesis. I think the best configuration will be to use a PERC, > with WriteBack enabled on all the spindle hard drives, but include an SSD > for ZIL, and set the PERC for WriteThrough on the SSD. This has yet to be > proven or disproven. Best for performance if you never fill the SSD. If you do fill it then things get ugly. How ugly depends on how you have the SSD-to-Disk flush configured. --Rich P.
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- ZFS: WriteBack versus SSD-ZIL
- From: solaris-Z8efaSeK1ezqlBn2x/YWAg at public.gmane.org (Edward Ned Harvey)
- ZFS: WriteBack versus SSD-ZIL
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