On 13/03/2015 13:40, Joshua D. Drake wrote:
On 03/13/2015 04:27 AM, Achilleas Mantzios wrote:
Hello,
we maintain a DB of nearly 500GB of data (and always getting larger),
and we are currently thinking of moving to SSD.
I have read Greg Smith's book on PostgreSQL 9.0 High Performance and his
considerations on SSD and the way that write back works.
This particular model (Samsung SSD 850 PRO 1T) does not employ any
special circuitry, battery or capacitor
to enforce that the data are really flushed to the medium.
What is your take on this? Is it dangerous to have PgSQL on this disk
especially in cases of power outages? (we have full UPS support, however
nothing can be overlooked, anything can happen)
If it does not have power loss protection, don't use it.
Thanx Joshua.
If theoretically somehow we eliminate the power loss factor, would it make sense to use such a disk?
JD
--
Achilleas Mantzios
Head of IT DEV
IT DEPT
Dynacom Tankers Mgmt
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