David Christensen composed on 2020-02-10 16:41 (UTC-0800): > I am using another Syba SD-SA2PEX-2IR card in one of my computers with a > pair of Seagate ST31500341AS 1.5 TB drives. I used Seagate SeaTools > Bootable to erase both. The erase seemed to proceed okay. One drive > was visibly faster than the other. However, both jobs finished with > "100.00% FAIL". I am now using FreeBSD and hexdump to verify that the > drives are indeed full of zeros. iostat reports ~98 MB/s for one drive > and ~121 MB/s for the other.
I shelved my ST31500341AS several years ago. It doesn't seem to be of much use now: # inxi -SMPDxx System: Host: ab250 Kernel: 4.19.0-6-amd64 x86_64 bits: 64 compiler: gcc v: 8.3.0 Desktop: Trinity R14.0.8 tk: Qt 3.5.0 wm: Twin dm: startx Distro: Debian GNU/Linux 10 (buster) Machine: Type: Desktop Mobo: ASUSTeK model: PRIME B250M-C v: Rev X.0x serial: 171013077301155 UEFI: American Megatrends v: 1608 date: 10/21/2019 Drives: Local Storage: total: 1.48 TiB used: 43.82 GiB (2.9%) ID-1: /dev/nvme0n1 vendor: ZTC model: PCIEG3-128G size: 119.24 GiB speed: 31.6 Gb/s lanes: 4 serial: 979021901256 ID-2: /dev/sda vendor: Seagate model: ST31500341AS size: 1.36 TiB speed: 3.0 Gb/s serial: 9VS4Q5FQ temp: 43 C Partition: ID-1: / size: 7.69 GiB used: 3.95 GiB (51.3%) fs: ext4 dev: /dev/nvme0n1p10 ID-2: /home size: 6.14 GiB used: 498.9 MiB (7.9%) fs: ext4 dev: /dev/nvme0n1p5 ID-3: swap-1 size: 1.71 GiB used: 0 KiB (0.0%) fs: swap dev: /dev/nvme0n1p2 # hdparm -t /dev/nvme0n1 /dev/nvme0n1: HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device Timing buffered disk reads: 3264 MB in 3.00 seconds = 1087.62 MB/sec # hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: read(2097152) returned 1060864 bytes # iostat -d /dev/sda /dev/nvme0n1 Linux 4.19.0-6-amd64 (ab250) 02/10/2020 _x86_64_ (4 CPU) Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn nvme0n1 17.61 2170.40 60.50 3758956 104782 sda 0.64 28.89 0.00 50032 0 smartctl -x for my Seagate is @ http://fm.no-ip.com/Tmp/Hardware/Disk/azbox1500-smartctlx-st31500341as.txt These have my removal from service record: http://fm.no-ip.com/Tmp/Hardware/Disk/azbox1500-201104-ddrescue.txt http://fm.no-ip.com/Tmp/Hardware/Disk/azbox1500-201104p2-ddr.txt ISTR finding a dismal reliability record for the model on the web somewhere. Good luck if you plan to keep your slower one in service. :p -- Evolution as taught in public schools is religion, not science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/