jm + ssds   3

Basho LevelDB supports tiered storage
Tiered storage is turning out to be a pretty practical trick to take advantage of SSDs:
The justification for two types/speeds of storage arrays is simple. leveldb is extremely write intensive in its lower levels. The write intensity drops off as the level number increases. Similarly, current and frequently updated data tends to be in lower levels while archival data tends to be in higher levels. These leveldb characteristics create a desire to have faster, more expensive storage arrays for the high intensity lower levels. This branch allows the high intensity lower levels to be on expensive storage arrays while slower, less expensive storage arrays to hold the higher level data to reduce costs.
caching  tiered-storage  storage  ssds  ebs  leveldb  basho  patches  riak  iops 
april 2014 by jm
A Tour Inside CloudFlare's Latest Generation Servers
great transparency from CloudFront! Looking at their current 4th-gen rackmount server buildout -- now with HP after Dell and ZT. Shitloads of SSDs for lower power and greater predictability in failure rates. 128GB RAM. consistent hashing to address stores instead of RAID. Sandybridge chipset. Solarflare SFC9020 10Gbps network cards. This is really impressive openness for a high-scale custom datacenter server platform...
datacenter  cloudflare  hardware  rackmount  ssds  intel 
july 2013 by jm

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