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Benchmarking Disk access performance to detect SSD (or very high-speed HDD)
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| #reading 1000 random 4k blocks from first 16GB of a disk | |
| time for i in `seq 1 1000`; do | |
| dd bs=4k if=/dev/sda count=1 skip=$(( $RANDOM * 128 )) >/dev/null 2>&1; | |
| done | |
| #References: | |
| # https://unix.stackexchange.com/questions/65595/how-to-know-if-a-disk-is-an-ssd-or-an-hdd | |
| # https://serverfault.com/questions/551453/how-do-i-verify-that-my-hosting-provider-gave-me-ssds/551495#551495 |
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