4 ms·

400MBps transfer speed means it would take 1 day, 14hours to fill it...

• izzydata 3y ago
  That seems pretty good honestly for its intended use case.
  • anfractuosity 3y ago
    Yeah that seems surprisingly good as I thought the write speeds I get from a spinning disk is around 100MB/s or less.
    • helf 3y ago
      100MB/s or less? Are you using SMR 5400rpm disks? I routinely get 180-220MB/s throughput per Exos drive.
      • anfractuosity 3y ago
        I just ran - dd if=/dev/zero of=tmp.img bs=1G count=1 oflag=dsync And got - 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 9.49586 s, 113 MB/s The drive appears to be - WDC WD160EDGZ-11B2DA0, it's a 16TB disk, which I thought would be SMR, due to its size, but maybe I'm wrong. Just found https://www.reddit.com/r/DataHoarder/comments/qf5ar3/is_this_white_label_hd_inside_my_16tb_elements/ https://www.reddit.com/r/DataHoarder/comments/qf5ar3/is_this... which seems to indicate it's CMR.
        • kiririn 3y ago
          > oflag=dsync This will reduce performance
• nayuki 3y ago
  That's in the same ballpark as HDDs. It takes me ~24 hours to fill an 18 TB HDD.
• tguvot 3y ago
  tape libraries (even small) can have multiple drives in same 6U chassis. you can link multiple chassis together to build bigger system.
• justsomehnguy 3y ago
  Since SATA/NL-SAS eaten up the lower tier of the enterprise HDDs you never write to the tape directly, it's always D2D2T.
• t90fan 3y ago
  thats great for tape only marginally slower than your average SSD