What kind of read speeds are people getting on large plots? It's taking me around 2.5 minutes to read 32TB across 10 drives connected via USB 3.0, 4 in a 4-port hub, the rest in a 9-port hub. Stagger is 7500, not great but not terribly low... and I don't know that stagger is the main issue, because a modified dcct miner reports initially covering plots at about 480 GB/s, but that drops to about 50 GB/s by the end. I'm not sure what could cause this. Here is the output, one line every 10s. The relevant number is the "n GB total" in the middle. Take the difference between these numbers and divide by 10 to get the rate at which it's going through the plots.
Tue Sep 30 01:46:27 EDT 2014 New block 17778, basetarget 5081194
Tue Sep 30 01:46:27 EDT 2014 0 MB read/0 GB total/no deadline
Tue Sep 30 01:46:37 EDT 2014 1214 MB read/4857 GB total/deadline 53967s (53957s left)
Tue Sep 30 01:46:47 EDT 2014 2296 MB read/9185 GB total/deadline 19237s (19217s left)
Tue Sep 30 01:46:57 EDT 2014 3141 MB read/12565 GB total/deadline 19237s (19207s left)
Tue Sep 30 01:47:07 EDT 2014 3885 MB read/15543 GB total/deadline 19237s (19197s left)
Tue Sep 30 01:47:17 EDT 2014 4463 MB read/17852 GB total/deadline 19237s (19187s left)
Tue Sep 30 01:47:27 EDT 2014 5081 MB read/20325 GB total/deadline 16960s (16900s left)
Tue Sep 30 01:47:37 EDT 2014 5728 MB read/22913 GB total/deadline 16960s (16890s left)
Tue Sep 30 01:47:47 EDT 2014 6311 MB read/25246 GB total/deadline 16960s (16880s left)
Tue Sep 30 01:47:57 EDT 2014 6891 MB read/27564 GB total/deadline 16960s (16870s left)
Tue Sep 30 01:48:07 EDT 2014 7503 MB read/30012 GB total/deadline 16960s (16860s left)
Tue Sep 30 01:48:17 EDT 2014 7857 MB read/31429 GB total/deadline 16960s (16850s left)
Tue Sep 30 01:48:27 EDT 2014 7975 MB read/31900 GB total/deadline 16960s (16840s left)
Tue Sep 30 01:48:37 EDT 2014 8012 MB read/32048 GB total/deadline 16960s (16830s left)
I just noticed that on this block, it stays steadily over 500 GB/s until the block is finished, but this is rare.
Tue Sep 30 01:53:37 EDT 2014 New block 17782, basetarget 4479105
Tue Sep 30 01:53:37 EDT 2014 0 MB read/0 GB total/no deadline
Tue Sep 30 01:53:47 EDT 2014 1581 MB read/6327 GB total/deadline 284980s (284970s left)
Tue Sep 30 01:53:57 EDT 2014 3052 MB read/12210 GB total/deadline 105624s (105604s left)
Tue Sep 30 01:54:07 EDT 2014 4349 MB read/17397 GB total/deadline 105624s (105594s left)
Tue Sep 30 01:54:17 EDT 2014 5604 MB read/22416 GB total/deadline 105624s (105584s left)