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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Strongly agree with Patrick. SSD is still slow storage compared to RAM. gerry On Thu, Mar 30, 2017 at 3:11 PM, Patrick L. Francis <wxprofessor@xxxxxxxxx> wrote: > Has anybody tried to put a queue exceeding physical memory size on a solid > state drive? With the 3km NAM nested our product lifespan went down to > about 4 min. ldmadmin vetqueuesize states 40 GB is needed, I am not even > sure that the current server supports that amount of memory. > > > > I've found that the best performance is achieved by creating a ramdisk to > both hold the queue in physical memory, and performing calculations (gddiag > and such). Memory is cheap enough now that a box can easily be maxed out > with memory to provide more than enough room for supporting the queue. > However, I can say that using a mounted SSD would improve performance > somewhat from older drives, simply from an IO perspective. [image: > *ALIEN*] > > > best of luck [image: :-)] > > > cheers, > > > --patrick > > > …………………………………………………………........... > > Patrick L. Francis > > Director of Research & Development > > Aeris Weather > > > > http://aerisweather.com/ > > http://modelweather.com/ > > > > wxprofessor@xxxxxxxxx > > http://facebook.com/wxprofessor/ > > > > ………………………………………………………… > > > .. > > > > > > > > _______________________________________________ > NOTE: All exchanges posted to Unidata maintained email lists are > recorded in the Unidata inquiry tracking system and made publicly > available through the web. Users who post to any of the lists we > maintain are reminded to remove any personal information that they > do not want to be made public. > > > ldm-users mailing list > ldm-users@xxxxxxxxxxxxxxxx > For list information or to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ > -- Gerry Creager NSSL/CIMMS 405.325.6371 ++++++++++++++++++++++ “Big whorls have little whorls, That feed on their velocity; And little whorls have lesser whorls, And so on to viscosity.” Lewis Fry Richardson (1881-1953)
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