dd_rescueの前に、やっておかなければいけないことがある。それは引っ越し先のHDDが不良でないかを確認することだ。このためにはbadblocksを使う。とりあえず、これでエラーがないことは確認できた。
% badblocks -v -s -w -o badblocks_sda.txt /dev/sda Checking for bad blocks in read-write mode From block 0 to 488386583 Testing with pattern 0xaa: done Reading and comparing: done Testing with pattern 0x55: done Reading and comparing: done Testing with pattern 0xff: done Reading and comparing: done Testing with pattern 0x00: 0.07% done, 27:13:32 elapsed. (0/0/0 errors) 2.07% done, 27:18:32 elapsed. (0/0/0 errors) 4.07% done, 27:23:32 elapsed. (0/0/0 errors) 6.07% done, 27:28:32 elapsed. (0/0/0 errors) 8.07% done, 27:33:32 elapsed. (0/0/0 errors) (snip) 92.13% done, 31:03:33 elapsed. (0/0/0 errors) 94.13% done, 31:08:33 elapsed. (0/0/0 errors) 96.12% done, 31:13:32 elapsed. (0/0/0 errors) 98.12% done, 31:18:33 elapsed. (0/0/0 errors) done Reading and comparing: 0.10% done, 31:23:32 elapsed. (0/0/0 errors) 1.81% done, 31:28:32 elapsed. (0/0/0 errors) 3.52% done, 31:33:33 elapsed. (0/0/0 errors) 5.23% done, 31:38:33 elapsed. (0/0/0 errors) 6.94% done, 31:43:33 elapsed. (0/0/0 errors) (snip) 95.59% done, 36:03:34 elapsed. (0/0/0 errors) 97.30% done, 36:08:34 elapsed. (0/0/0 errors) 99.00% done, 36:13:34 elapsed. (0/0/0 errors) done Pass completed, 0 bad blocks found. (0/0/0 errors)
実行中のvmstatはこんな感じ。
% vmstat 60 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 1 0 4756 15984 49668 0 0 14 26 607 1467 1 12 2 85 0 1 1 0 4764 15984 49604 0 0 0 32221 640 1537 0 13 0 86 0 1 1 0 4764 15984 49604 0 0 0 32211 639 1538 0 13 0 87 0 0 1 0 4764 15984 49604 0 0 0 32235 635 1537 0 13 0 87 0 0 1 0 4764 15984 49604 0 0 0 32245 632 1535 0 13 0 87 0 0 1 0 4764 15984 49604 0 0 0 32241 638 1537 0 13 0 87 0 0 1 0 4764 15984 49604 0 0 0 32243 639 1536 0 13 0 87 0 0 1 0 4692 15984 49612 0 0 0 32119 645 1541 1 13 0 86 0 2 1 0 4672 15984 49612 0 0 0 32187 637 1534 0 13 0 87 0 0 1 0 4076 16028 50112 0 0 24537 1360 885 1232 34 16 0 50 0 1 0 0 4076 16028 50112 0 0 27609 0 958 1312 38 17 0 45 0 1 1 0 4172 16028 50112 0 0 27610 0 959 1313 38 17 0 45 0 0 1 0 4172 16028 50112 0 0 27614 0 959 1312 38 17 0 45 0