This SSD default size seems to be 4K not 16K (as can be seen below). Bytes Per Sector : 512 Bytes Per Physical Sector : 4096 Bytes Per Cluster : 4096 Bytes Per FileRecord Segment : 1024
I will go through the articles you sent. Thanks On Tue, Mar 18, 2014 at 6:31 PM, Shawn Heisey <s...@elyograg.org> wrote: > On 3/18/2014 7:12 AM, Salman Akram wrote: > > Is there a rule of thumb for ideal block size for SSDs for large indexes > > (in hundreds of GBs)? Read performance is of top importance for us and we > > can sacrifice the space a little... > > > > This is the one we just got and wanted to see if there are any test > results > > out there > > http://www.storagereview.com/micron_p420m_enterprise_pcie_ssd_review > > The best filesystem block size to use for SSDs is dictated more by the > characteristics of the SSD itself than what data you put on it. > > Here's an awesome series of articles about SSDs that I heard about from > Shalin Shekhar Mangar: > > > http://codecapsule.com/2014/02/12/coding-for-ssds-part-1-introduction-and-table-of-contents/ > > With the page size of most large SSDs at 16KB, you might want to go with > a multiple of that, like 64KB, and learn about the proper use of parted > to align partition boundaries. > > As for whether there are Solr settings that can improve the I/O > characteristics when reading/writing, that I do not know. > > Thanks, > Shawn > > -- Regards, Salman Akram
