M.2 to 4x SATA Module

SATA

Input: Plug sata disk to M2 extension board and power on
Output: Sata device is recognized

Verify that disk is detected:

root@imx8mq-voipac:~# dmesg | grep -i 'sata\|ata1\|sda'
[2.715730] ahci 0000:01:00.0: AHCI 0001.0000 32 slots 4 ports 6 Gbps 0xf impl SATA mode
[2.764131] ata1: SATA max UDMA/133 abar m2048@0x20100000 port 0x20100100 irq 239
[2.764139] ata2: SATA max UDMA/133 abar m2048@0x20100000 port 0x20100180 irq 239
[2.764144] ata3: SATA max UDMA/133 abar m2048@0x20100000 port 0x20100200 irq 239
[2.764150] ata4: SATA max UDMA/133 abar m2048@0x20100000 port 0x20100280 irq 239
[3.076332] ata4: SATA link down (SStatus 0 SControl 300)
[3.087794] ata2: SATA link down (SStatus 0 SControl 300)
[3.148725] ata1: SATA link down (SStatus 0 SControl 300)
[3.315573] ata3: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[3.341751] ata3.00: ATA-9: 8GB SATA Flash Drive, SFDK003A, max UDMA/100
[3.382232] scsi 2:0:0:0: Direct-Access     ATA      8GB SATA Flash D 003A PQ: 0 ANSI: 5
[3.398313] sd 2:0:0:0: [sda] 15649200 512-byte logical blocks: (8.01 GB/7.46 GiB)
[3.407367] sd 2:0:0:0: [sda] Write Protect is off
[3.417888] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
[3.417941] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[3.446160]  sda: sda1
[3.450188] sd 2:0:0:0: [sda] Attached SCSI removable disk
root@imx8mq-voipac:~#

root@imx8mq-voipac:~# ls -la /dev/sda
brw-rw---- 1 root disk 8, 0 Feb 22 07:13 /dev/sda
# run speed test - write
root@imx8mq-voipac:~# time dd if=/dev/urandom of=/dev/sda bs=4096 status=progress count=200000
#NOTE: "of=/dev/sdb" is correct? + Consider using a printout from testing a better SATA disk - higher speeds were achieved.
812093440 bytes (812 MB, 774 MiB) copied, 29 s, 28.0 MB/s
200000+0 records in
200000+0 records out
819200000 bytes (819 MB, 781 MiB) copied, 34.1491 s, 24.0 MB/s
real    0m 34.15s
user    0m 0.30s
sys     0m 12.74s

# run speed test - read
root@imx8mq-voipac:~# time dd if=/dev/sda of=/tmp/test.bin bs=4096 status=progress count=100000
#NOTE: "if=/dev/sdb" is correct? + Consider using a printout from testing a better SATA disk - higher speeds were achieved.
364503040 bytes (365 MB, 348 MiB) copied, 4 s, 91.1 MB/s
100000+0 records in
100000+0 records out
409600000 bytes (410 MB, 391 MiB) copied, 4.5828 s, 89.4 MB/s
real    0m 4.79s
user    0m 0.06s
sys     0m 2.15s

We achieved aw write speed ~ 24MB/s and read speed ~90MB/s