Thanks Rahul and Arun On Thu, Apr 30, 2015 at 3:24 PM, Rahul Neelakantan <ra...@rahul.be> wrote:
> Here is a calculator someone has put together > > > http://btoddb-cass-storage.blogspot.com/2012/01/ive-been-asked-for-spreadsheet-to-help.html?m=1 > > Rahul > > On Apr 30, 2015, at 12:53 AM, arun sirimalla <arunsi...@gmail.com> wrote: > > Hi Rahul, > > If you are expecting 15 GB of data per day, here is the calculation. > > 1 Day = 15 GB, 1 Month = 450 GB, 1 Year = 5.4 TB, so your raw data size > for one year is 5.4 TB with replication factor of 3 it would be around 16.2 > TB of data for one year. > > Taking compaction into consideration and your use case being write heavy, > if you go with size tiered compaction. you would need twice the space of > your raw data. > > So you would need around 32-34 TB of disk space. > > Reference: > http://docs.datastax.com/en/cassandra/2.0/cassandra/architecture/architecturePlanningDiskCapacity_t.html > > Thanks > > On Wed, Apr 29, 2015 at 9:20 PM, Rahul Bhardwaj < > rahul.bhard...@indiamart.com> wrote: > >> Hi All, >> >> >> We are planning to set up a cluster of 5 nodes with RF 3 for write heavy >> project, our current database size is around 500 GB. And it is growing at >> rate of 15 GB every day. We learnt that cassandra consumes space for >> compaction processes, So how can we calculate the amount of disk space we >> would require. >> >> Kindly suggest. >> >> >> >> Regards: >> Rahul Bhardwaj >> >> >> Follow IndiaMART.com <http://www.indiamart.com> for latest updates on >> this and more: <https://plus.google.com/+indiamart> >> <https://www.facebook.com/IndiaMART> <https://twitter.com/IndiaMART> >> Mobile Channel: >> <https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=668561641&mt=8> >> <https://play.google.com/store/apps/details?id=com.indiamart.m> >> <http://m.indiamart.com/> >> >> <https://www.youtube.com/watch?v=DzORNbeSXN8&list=PL2o4J51MqpL0mbue6kzDa6eymLVUXtlR1&index=2> >> Watch how IndiaMART Maximiser helped Mr. Khanna expand his business. >> kyunki Kaam Yahin Banta Hai <https://www.youtube.com/watch?v=cy1jiNXrzxc> >> !!! > > > > > -- > Arun > Senior Hadoop/Cassandra Engineer > Cloudwick > > Champion of Big Data (Cloudera) > > http://www.cloudera.com/content/dev-center/en/home/champions-of-big-data.html > > 2014 Data Impact Award Winner (Cloudera) > > http://www.cloudera.com/content/cloudera/en/campaign/data-impact-awards.html > > -- Follow IndiaMART.com <http://www.indiamart.com> for latest updates on this and more: <https://plus.google.com/+indiamart> <https://www.facebook.com/IndiaMART> <https://twitter.com/IndiaMART> Mobile Channel: <https://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=668561641&mt=8> <https://play.google.com/store/apps/details?id=com.indiamart.m> <http://m.indiamart.com/> <https://www.youtube.com/watch?v=DzORNbeSXN8&list=PL2o4J51MqpL0mbue6kzDa6eymLVUXtlR1&index=2> Watch how IndiaMART Maximiser helped Mr. Khanna expand his business. kyunki Kaam Yahin Banta Hai <https://www.youtube.com/watch?v=cy1jiNXrzxc>!!!
