| | 27 | * raid throughputs: Gene has noticed the R/W to the raid doesn't seem much faster than to a single disk. Mark looking into. |
| | 28 | * using multiple tests (dd, bonnie, iozone) seems to indicate w/in RAM caching have ~2-400MB/s for writes, large files drop to ~2x single SATA disk speeds ~80MB/s with single process. Multiple processes seem to degrade the rate linearly |
| | 29 | * need to look more at latencies since filesizes are << RAM, order 30MB or less. |
| | 30 | * adding iostat reports to ganglia would be useful to track the IO during full processing with OTA/skycells processed locally. |
| | 31 | * more details on the raid config for active machines will help as well |
