Date: Wed, 20 Feb 2013 20:42:01 -0500 (EST) From: Rick Macklem <rmacklem@uoguelph.ca> To: grarpamp <grarpamp@gmail.com> Cc: freebsd-fs@freebsd.org Subject: Re: Crazy ZFS ZIL options: md(4) umass(4) Message-ID: <127974626.3169918.1361410921874.JavaMail.root@erie.cs.uoguelph.ca> In-Reply-To: <CAD2Ti294qNyveJUgt=KLV9Acq%2BPGGK6LAtmNYfSAq2oCrkj6Rw@mail.gmail.com>
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grarpamp wrote: > Still digesting this thread in free time. > There are some articles too... > > http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide > http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide > http://www.slideshare.net/relling/zfs-tutorial-lisa-2011 > http://constantin.glez.de/blog/2010/07/solaris-zfs-synchronous-writes-and-zil-explained > http://dtrace.org/blogs/brendan/2009/06/26/slog-screenshots/ > https://espix.net/~wildcat/txt/zfs-fragmentation.txt > http://pthree.org/2012/12/06/zfs-administration-part-iii-the-zfs-intent-log/ > http://www.techforce.com.br/news/layout/set/print/linux_blog/zfs_part_4_sustained_random_small_files_sync_write_iops > > Whatever happened to the old ISA ExpandedDRAM drives? > Today, bus based internal boards given mobo support of lots of ram > don't seem to make too much sense. But there has to be a cheap > SATA interface version of these things... a drive tray where you can > just stuff it with DIMMs and a battery. > Cheap as in, am I missing an entire class of $20-$50 devices > here? That's all they should cost in parts (minus ram), yet all I > see are $multikilo 'enterprise' stuff. If that's really the case one > could make them from China. > Someone posted mentioning this one. ($337 isn't $20-%50, but...): http://www.acard.com/english/fb01-product.jsp?idno_no=382&prod_no=ANS-9010BA&type1_idno=5&ino=28 > I can't see burning up an SSD (cost) for non-enterprise use. > I'll test with USB to expose failure modes. Will probably end up with > RAMZIL/syncdisable or adding a 10k spindle pair. > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
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