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Re: [PERFORM] Suggestions for a HBA controller (6 x SSDs + madam RAID10) - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: [PERFORM] Suggestions for a HBA controller (6 x SSDs + madam RAID10)
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Msg-id CAOR=d=299wcezQb8m8PFR+uT4Kj2Z2cRtw9MBd_BDHj47kZnCQ@mail.gmail.com
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In response to [PERFORM] Suggestions for a HBA controller (6 x SSDs + madam RAID10)  (Pietro Pugni <pietro.pugni@gmail.com>)
Responses Re: [PERFORM] Suggestions for a HBA controller (6 x SSDs + madam RAID10)
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Suggestion #1 is to turn off any write caching on the RAID controller. Using LSI MegaRAID we went from 3k to 5k tps to 18k just turning off write caching. Basically it just got in the way.

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