From: Pietro Pugni <pietro.pugni@gmail.com>
To: Scott Marlowe <scott.marlowe@gmail.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Suggestions for a HBA controller (6 x SSDs + madam RAID10)
Date: Wed, 22 Feb 2017 00:46:13 +0100
Message-ID: <861F33C2-A55C-4036-9922-C6DA258A2B7D@gmail.com> (raw)
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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.
Write caching is disabled because I removed the expansion card of the RAID controller. It didn’t let the server boot properly with SSDs mounted.
Thank you for the suggestion
Pietro Pugni
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To: pgsql-performance@postgresql.org
Cc: pietro.pugni@gmail.com, scott.marlowe@gmail.com
Subject: Re: Suggestions for a HBA controller (6 x SSDs + madam RAID10)
In-Reply-To: <861F33C2-A55C-4036-9922-C6DA258A2B7D@gmail.com>
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