Optimal SSD based RAID 0 config

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От babak houman
Тема Optimal SSD based RAID 0 config
Дата
Msg-id CAOb7zCgrGKE_nNfJoxyY7Yx_y58wvezp_Mxn8moCA=ZfGhH4MQ@mail.gmail.com
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Ответы Re: Optimal SSD based RAID 0 config
Список pgsql-admin
I would like to ask the community for their kind support. 
I'm looking for the optimal configuration of postgresql 
under the following assumptions:


# Database usage scenario:

```
* daily bulk upload of several million rows of financial transaction data
* Statistical analysis (possibly machine learning) using pl/R and pl/python
```



# My hardware spec:

```
* ASUS WS X299 PRO/SE LGA2066 ATX
* SAMSUNG 850 PRO SSD 256GB intern SED 6,4cm 2,5Zoll SATA 6Gb/s
* INTEL Core i9-7900X 3,30GHz LGA2066 13,75MB Cache Boxed CPU 10K
* 128GB DDR4-3000 CL15
* 2x HGST ULTRASTAR SN260 SSD HH-HL 3200GB PCIe MLC RI 15NM HUSMR7632BHP301
```

Operating system is Linux (preferably debian jessie or gentoo).
I would like to use the 2x ULTRASTAR SSD PCIe in raid 0 mode to maximize
the I/O throughput.

In particular I'm looking for the the allignment of the following parameters:

```
* postgresql block size
* Kernel PAGESIZE
* RAID stripe size
```


Best regards and many thanks in advance

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