Table of Contents
USB drive tests
This tests are with spinning disks.
Expansion drive
$ lsusb Bus 002 Device 002: ID 0bc2:231a Seagate RSS LLC Expansion Portable
$ dmesg sd 0:0:0:0: [sda] 7814037167 512-byte logical blocks: (4.00 TB/3.64 TiB) sd 0:0:0:0: [sda] 4096-byte physical blocks sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 53 00 00 08 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes) sd 0:0:0:0: [sda] Attached SCSI disk
USB3 dock
$ lsusb Bus 002 Device 003: ID 174c:55aa ASMedia Technology Inc. Name: ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge Bus 001 Device 003: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Disc 1 (SDA)
$ dmesg sd 0:0:0:0: [sda] 156250000 512-byte logical blocks: (80.0 GB/74.5 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes sda: sda1 sd 0:0:0:0: [sda] Attached SCSI disk
Blank (sda and sdb in parallel)
$ dd if=/dev/zero of=/dev/sda bs=4M dd: error writing '/dev/sda': No space left on device 19074+0 records in 19073+0 records out 80000000000 bytes (80 GB, 75 GiB) copied, 1699.79 s, 47.1 MB/s 28:19.79s
Disc 2 (SDB)
dmesg
sd 0:0:0:1: [sdb] 160086528 512-byte logical blocks: (82.0 GB/76.3 GiB) sd 0:0:0:1: [sdb] Write Protect is off sd 0:0:0:1: [sdb] Mode Sense: 43 00 00 00 sd 0:0:0:1: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:1: [sdb] Optimal transfer size 33553920 bytes sdb: sdb1 sd 0:0:0:1: [sdb] Attached SCSI disk
Blank (sda and sdb in parallel)
$ dd if=/dev/zero of=/dev/sdb bs=4M dd: error writing '/dev/sdb': No space left on device 19542+0 records in 19541+0 records out 81964302336 bytes (82 GB, 76 GiB) copied, 1758.59 s, 46.6 MB/s 29:18.59s
Disk 3 (2TB)
$ dmesg sd 0:0:0:1: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB) sd 0:0:0:1: [sdb] Write Protect is off sd 0:0:0:1: [sdb] Mode Sense: 43 00 00 00 sd 0:0:0:1: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:1: [sdb] Optimal transfer size 33553920 bytes sd 0:0:0:1: [sdb] Attached SCSI disk
Blank
$ dd if=/dev/zero of=/dev/sdb bs=4M dd: error writing '/dev/sdb': No space left on device 476933+0 records in 476932+0 records out 2000398934016 bytes (2.0 TB, 1.8 TiB) copied, 18988.7 s, 105 MB/s 5:16:28.70s
Disk 4 (500G)
$ dmesg sd 0:0:0:0: [sda] 976773168 512-byte logical blocks: (500 GB/466 GiB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 43 00 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] Optimal transfer size 33553920 bytes sd 0:0:0:0: [sda] Attached SCSI disk
Blank
$ dd if=/dev/zero of=/dev/sda bs=4M dd: error writing '/dev/sda': No space left on device 119236+0 records in 119235+0 records out 500107862016 bytes (500 GB, 466 GiB) copied, 6602.9 s, 75.7 MB/s