Sv: Latest advice on SSD?

От: Andreas Joseph Krogh
Тема: Sv: Latest advice on SSD?
Дата: ,
Msg-id: VisenaEmail.c.d0d82e38c7187473.162ae6e010b@tc7-visena
(см: обсуждение, исходный текст)
Ответ на: Latest advice on SSD?  (Craig James)
Ответы: Re: Latest advice on SSD?  (Craig James)
Список: pgsql-performance

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Latest advice on SSD?  (Craig James, )
 Sv: Latest advice on SSD?  (Andreas Joseph Krogh, )
  Re: Latest advice on SSD?  (Craig James, )
   Sv: Re: Latest advice on SSD?  (Andreas Joseph Krogh, )
    Sv: Sv: Re: Latest advice on SSD?  (Andreas Joseph Krogh, )
     Re: Sv: Sv: Re: Latest advice on SSD?  (Mark Kirkwood, )
      Sv: Re: Sv: Sv: Re: Latest advice on SSD?  (Andreas Joseph Krogh, )
      Sv: Re: Sv: Sv: Re: Latest advice on SSD?  (Andreas Joseph Krogh, )
      Re: Latest advice on SSD?  (Evgeniy Shishkin, )
       Re: Latest advice on SSD?  (Mark Kirkwood, )
 Re: Latest advice on SSD?  (Benjamin Scherrey, )
  Re: Latest advice on SSD?  (Aaron, )
   Re: Latest advice on SSD?  (Dmitry Shalashov, )
    Re: Latest advice on SSD?  (Charles Sprickman, )
     Re: Latest advice on SSD?  (Frits Jalvingh, )
 Re: Latest advice on SSD?  (Mark Kirkwood, )
 Re: Latest advice on SSD?  (Matthew Hall, )
  Re: Latest advice on SSD?  (Mark Kirkwood, )
   Re: Latest advice on SSD?  (Ants Aasma, )

På tirsdag 10. april 2018 kl. 04:36:27, skrev Craig James <>:
One of our four "big iron" (spinning disks) servers went belly up today. (Thanks, Postgres and pgbackrest! Easy recovery.) We're planning to move to a cloud service at the end of the year, so bad timing on this. We didn't want to buy any more hardware, but now it looks like we have to.
 
I followed the discussions about SSD drives when they were first becoming mainstream; at that time, the Intel devices were king. Can anyone recommend what's a good SSD configuration these days? I don't think we want to buy a new server with spinning disks.
 
We're replacing:
  8 core (Intel)
  48GB memory
  12-drive 7200 RPM 500GB
     RAID1 (2 disks, OS and WAL log)
     RAID10 (8 disks, postgres data dir)
     2 spares
  Ubuntu 16.04
  Postgres 9.6
 
The current system peaks at about 7000 TPS from pgbench.
 
With what arguments (also initialization)?
 
--
Andreas Joseph Krogh
 

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