Re: New system recommendations
От | William Yu |
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Тема | Re: New system recommendations |
Дата | |
Msg-id | e2ps5l$27c8$1@news.hub.org обсуждение исходный текст |
Ответ на | New system recommendations ("Benjamin Krajmalnik" <kraj@illumen.com>) |
Список | pgsql-admin |
Benjamin Krajmalnik wrote: > We are currently inserting about 1 million rows per day, and will > increase to probably 5 million once it goes into full deployment. > > It is currently running on a 3GHz Xeon HT, 2GB RAM, dual 72GB disks > running RAID 1. This server is a 1U without only 2 drive bays, so I > have a potential issue with drive space. > > As a result, I will be moving the db server to a Dell 1650 with 3 146GB > SCSI drives running RAID 0. System is a dual processor, 1.2GHz, with > 4GB RAM. I'm assuming you've already optimized your code with all the necessary tricks for maximum insert/update performance because your disk upgrade plan is rather underwhelming. 3X the disk bandwidth (3dr-RAID0 versus 2dr-RAID1) won't even keep pace with your expected 5X increased volume. Anytime you do a system upgrade, you always have to plan to handle many times the current projected volume so you don't have to upgrade yet again next year. Go nuts -- get as many disks as you can afford. Get as much onboard cache as you can afford. If number of drive bays is an issue, I'd get a separate case/rackmount and run external scsi/sata cables to it.
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