Is it possible for someone to put up a wiki page somewhere with the various SSD, ZIL, L2ARC options with Pros, Cons and Benchmarks. Especially with notes like the below.
Given this is a key area of interest for zfs at the moment, seems like it would be a useful resource. On Wed, Feb 4, 2009 at 11:01 AM, David Dyer-Bennet <d...@dd-b.net> wrote: > > On Tue, February 3, 2009 15:26, Richard Elling wrote: > > Orvar Korvar wrote: > > >> Which is the best SSD disk to add? > > > > The one that somebody else pays for :-) > > Does the access pattern for say the ZIL tickle the "stuttering" bug in the > JMicron-controller multi-level-cell SSDs? That is, in all the cheap ones? > Somehow early reviews managed to miss it, so I'm stuck with one, and will > eventually replace it with something faster -- and then will be looking > for a way to use it productively. Or has all the testing centered around > enterprise-grade stuff and nobody knows about the cheaper drives' > performance? > > (There's a problem in the MLC SSD drives with particular JMicron > controller chips where some patterns of small writes trigger ~~10sec. > hangs, which is most often called "stuttering" in online discussions of it > that I've seen. Using it as a Windows system disk unfortunately hits these > patterns far too frequently. My particular example is an OCZ Core 2 64GB > unit. Oh; I should say I've been through the list of registry tweaks, and > I can't see they've helped more than a little.) > > -- > David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/ > Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/ > Photos: http://dd-b.net/photography/gallery/ > Dragaera: http://dragaera.info > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
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