Western Digital WD10EARS:
count size offset step msec tps kBps 131072 1024 0 4096 143839 911 911 131072 1024 512 4096 145876 898 898 65536 2048 0 8192 96727 677 1355 65536 2048 512 8192 88182 743 1486 65536 2048 1024 8192 89126 735 1470 32768 4096 0 16384 23063 1420 5683 32768 4096 512 16384 76939 425 1703 32768 4096 1024 16384 75719 432 1731 32768 4096 2048 16384 76007 431 1724 16384 8192 0 32768 16567 988 7911 16384 8192 512 32768 67676 242 1936 16384 8192 1024 32768 68772 238 1905 16384 8192 2048 32768 68422 239 1915 16384 8192 4096 32768 15728 1041 8333
Western Digital WD20EARS:
count size offset step msec tps kBps 131072 1024 0 4096 1963003 66 66 131072 1024 512 4096 1964781 66 66 65536 2048 0 8192 897269 73 146 65536 2048 512 8192 898143 72 145 65536 2048 1024 8192 897456 73 146 32768 4096 0 16384 18923 1731 6926 32768 4096 512 16384 1216071 26 107 32768 4096 1024 16384 1212785 27 108 32768 4096 2048 16384 1213512 27 108 16384 8192 0 32768 13645 1200 9605 16384 8192 512 32768 804264 20 162 16384 8192 1024 32768 802154 20 163 16384 8192 2048 32768 802877 20 163 16384 8192 4096 32768 13960 1173 9388
Hitach HDS722020ALA330:
count size offset step msec tps kBps 131072 1024 0 4096 34849 3761 3761 131072 1024 512 4096 34807 3765 3765 65536 2048 0 8192 19341 3388 6776 65536 2048 512 8192 19332 3389 6779 65536 2048 1024 8192 19352 3386 6772 32768 4096 0 16384 8756 3741 14967 32768 4096 512 16384 8803 3722 14888 32768 4096 1024 16384 8782 3731 14924 32768 4096 2048 16384 8744 3747 14989 16384 8192 0 32768 5036 3253 26025 16384 8192 512 32768 5035 3253 26029 16384 8192 1024 32768 4997 3278 26227 16384 8192 2048 32768 5042 3249 25994 16384 8192 4096 32768 5039 3251 26010
Slightly different numbers, same conclusion: stay away from WD’s Green Series.
And buy Hitachi, even if it costs you a little more.
Not necessarily. I’m very happy with Western Digital’s Black series.