Latest advice on SSD?
| От | Craig James |
|---|---|
| Тема | Latest advice on SSD? |
| Дата | |
| Msg-id | CAFwQ8rcCSiD2jC1JXHEh4fjxjzP+M9gGnbBNHj_+rm=Ng2ea+A@mail.gmail.com обсуждение исходный текст |
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| Список | pgsql-performance |
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.
Our system is a mix of non-transactional searching (customers) and transactional data loading (us).
Thanks!
Craig
--
eMolecules, Inc.
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Craig A. James
Chief Technology OfficerCraig A. James
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