| From: | "alexandre arruda paes :: aldeia digital" <alexandre(at)aldeiadigital(dot)com(dot)br> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Dual Xeon + HW RAID question |
| Date: | 2003-07-10 17:43:25 |
| Message-ID: | 1192.192.168.1.100.1057859005.squirrel@webmail.ad2.com.br |
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| Lists: | pgsql-performance |
Hi,
I have this machine with a 10 million records:
* Dual Xeon 2.0 (HyperThreading enabled), 3 7200 SCSI , Adaptec 2110S,
RAID 5 - 32k chunk size, 1 GB Ram DDR 266 ECC, RH 8.0 - 2.4.18
The database is mirrored with contrib/dbmirror in a P4 1 Gb Ram + IDE
If a disk failure occurs, I can use the server in the mirror.
I will format the main server in this weekend and I have seen in the list
some people that recomends a Software RAID instead HW.
I think too remove the RAID 5 and turn a RAID 1 for data in 2 HDs.
SO, WAL and swap in the thrid HD.
My questions:
1) I will see best disk performance changing the disk layout like above
2) HyperThreading really improve a procces basead program, like postgres
Thank´s for all
Alexandre
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