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Thread: NAS and RAM
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08-25-2007, 03:35 AM #1Web Hosting Evangelist
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NAS and RAM
Hi guys,
We have a NAS server with 2GB of RAM. It gets a TON of disk traffic and it overloaded right now. Would a quick fix be to add more memory? Would that help at all relieve some load from the disks?
Code:[root@nas admin]# free -m total used free shared buffers cached Mem: 2027 2022 4 0 408 1323 -/+ buffers/cache: 290 1736 Swap: 4094 0 4094
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08-25-2007, 03:37 AM #2Web Hosting Master
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As you can see there is enough space free in buffer, you dont need to worry here. If the buffer size is getting filled up frequently there will be memory shortage.
David | www.cliffsupport.com
Affordable Server Management Solutions sales AT cliffsupport DOT com
CliffWebManager | Access WHM from iPhone and Android
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08-25-2007, 03:43 AM #3Web Hosting Evangelist
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Alright, thank you. That is very good to know.
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08-25-2007, 03:58 AM #4Web Hosting Master
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See the value 1323 ie cached. Linux always uses the spare memory to cache. It is the buffer/cache section that shows how much space your applications are currently using.
David | www.cliffsupport.com
Affordable Server Management Solutions sales AT cliffsupport DOT com
CliffWebManager | Access WHM from iPhone and Android
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08-26-2007, 02:12 AM #5Web Hosting Evangelist
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I would say that there's no harm from adding RAM, but the degree of improvement it provides is highly dependent on your IO access patterns.
WK Woon
CTO | http://www.aflexi.net - A flexible Network
Building the next generation CDN platform - DEMO .... coming soon
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08-26-2007, 02:28 AM #6Retired Moderator
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What type of disk setup are you running?
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