ASR-A501 PCIE M.2 B Key

HW Pin define：

 

SW Function：

SATA (model: IM2S3334 - 512GCTB4)

The M.2_B-KEY interface of the ASR-A501 supports two types of signals, and the specific type depends on the configuration you have purchased. One is the PCIE signal, and the other is the SATA signal. To test the M.2_B-KEY SATA signal, can use the SATA disk (model: IM2S3334 - 512GCTB4).

List disk information

# fdisk -l /dev/sda
Disk /dev/sda: 476.94 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: ADATA_IM2S3334-5
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: FFB00BF9-6A9C-4985-9940-119F64E2245F

Device    Start      End       Sectors         Size Type
/dev/sda1 2048      616447     614400        300M EFI System
/dev/sda2 616448    878591     262144        128M Microsoft reserved
/dev/sda3 878592    630026239  629147648     300G Microsoft basic data
/dev/sda4 630026240 1000215182 370188943     176.5G Microsoft basic data

Check mount point

# mount | grep sda
/dev/sda1 on /run/media/sda1 type vfat (rw,relatime,gid=6,fmask=0007,dmask=0007,allow_utime=0020,codepage=936,iocharset=utf8,shortname=mixed,errors=remount-ro)
/dev/sda4 on /run/media/sda4 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
/dev/sda3 on /run/media/sda3 type fuseblk (rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096)

Speed Test

 – Read Speed

# echo 3 > /proc/sys/vm/drop_caches
# dd if=/dev/nvme0n1 of=/dev/zero bs=1M count=400
400+0 records in
400+0 records out
419430400 bytes (419 MB, 400 MiB) copied, 0.866038 s, 484 MB/s

 – Write Speed

# echo 3 > /proc/sys/vm/drop_caches
# dd if=/dev/zero of=/dev/nvme0n1 bs=1M count=400
400+0 records in
400+0 records out
419430400 bytes (419 MB, 400 MiB) copied, 0.234872 s, 1.8 GB/s