How to get the Serial Number of a disk by corresponding file in linux?
I know that for a disk in linux, we can use commands such as hdparm or smartctl to get its basic information.
But for the implementation of these commands, I think all of them are implemented by reading the corresponding file of a disk in linux. For example, to get the size of a device /dev/sda, we can use cat /sys/block/sda/size instead of using command such hdparm or smartctl. So the question is how to get the serial number of a disk by reading its corresponding file directly.
linux command io disk
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
add a comment |
I know that for a disk in linux, we can use commands such as hdparm or smartctl to get its basic information.
But for the implementation of these commands, I think all of them are implemented by reading the corresponding file of a disk in linux. For example, to get the size of a device /dev/sda, we can use cat /sys/block/sda/size instead of using command such hdparm or smartctl. So the question is how to get the serial number of a disk by reading its corresponding file directly.
linux command io disk
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
1
grep SERIAL_SHORT /run/udev/data/b8*(your first drive would beb8:0, the secondb8:16, the thirdb8:32etc)
– don_crissti
Nov 30 '15 at 3:06
add a comment |
I know that for a disk in linux, we can use commands such as hdparm or smartctl to get its basic information.
But for the implementation of these commands, I think all of them are implemented by reading the corresponding file of a disk in linux. For example, to get the size of a device /dev/sda, we can use cat /sys/block/sda/size instead of using command such hdparm or smartctl. So the question is how to get the serial number of a disk by reading its corresponding file directly.
linux command io disk
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
I know that for a disk in linux, we can use commands such as hdparm or smartctl to get its basic information.
But for the implementation of these commands, I think all of them are implemented by reading the corresponding file of a disk in linux. For example, to get the size of a device /dev/sda, we can use cat /sys/block/sda/size instead of using command such hdparm or smartctl. So the question is how to get the serial number of a disk by reading its corresponding file directly.
linux command io disk
linux command io disk
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
asked Nov 30 '15 at 2:41
Jin CaiJin Cai
62
62
1
grep SERIAL_SHORT /run/udev/data/b8*(your first drive would beb8:0, the secondb8:16, the thirdb8:32etc)
– don_crissti
Nov 30 '15 at 3:06
add a comment |
1
grep SERIAL_SHORT /run/udev/data/b8*(your first drive would beb8:0, the secondb8:16, the thirdb8:32etc)
– don_crissti
Nov 30 '15 at 3:06
1
1
grep SERIAL_SHORT /run/udev/data/b8* (your first drive would be b8:0, the second b8:16, the third b8:32 etc)– don_crissti
Nov 30 '15 at 3:06
grep SERIAL_SHORT /run/udev/data/b8* (your first drive would be b8:0, the second b8:16, the third b8:32 etc)– don_crissti
Nov 30 '15 at 3:06
add a comment |
3 Answers
3
active
oldest
votes
You could also use /proc/partitions to find that info.
That file gives you the size in number of blocks that all your partitions have, But also gives you the same information for your entire disks.
edited Nov 30 '15 at 5:37
Tejas
1,83621940
answered Nov 30 '15 at 4:56
VictorVictor
112
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
add a comment |
You could use strace to find how smartctl get the serial number of a disk. CMD line likes this: strace smartctl -a /dev/sda. Maybe it just get the serial by ioctl.
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
add a comment |
I just have a try. It do get the serial by ioctl. This is some output of strace:
open("/dev/sda", O_RDONLY|O_NONBLOCK) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[6]=[12, 00, 00, 00, 24, 00], mx_sb_len=32, iovec_count=0, dxfer_len=36, timeout=20000, flags=0, data[36]=["52[ATA WDC WD5000LPVX-0"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
You could also use /proc/partitions to find that info.
That file gives you the size in number of blocks that all your partitions have, But also gives you the same information for your entire disks.
edited Nov 30 '15 at 5:37
Tejas
1,83621940
answered Nov 30 '15 at 4:56
VictorVictor
112
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
add a comment |
You could also use /proc/partitions to find that info.
That file gives you the size in number of blocks that all your partitions have, But also gives you the same information for your entire disks.
edited Nov 30 '15 at 5:37
Tejas
1,83621940
answered Nov 30 '15 at 4:56
VictorVictor
112
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
add a comment |
You could also use /proc/partitions to find that info.
That file gives you the size in number of blocks that all your partitions have, But also gives you the same information for your entire disks.
edited Nov 30 '15 at 5:37
Tejas
1,83621940
answered Nov 30 '15 at 4:56
VictorVictor
112
You could also use /proc/partitions to find that info.
That file gives you the size in number of blocks that all your partitions have, But also gives you the same information for your entire disks.
edited Nov 30 '15 at 5:37
Tejas
1,83621940
answered Nov 30 '15 at 4:56
VictorVictor
112
edited Nov 30 '15 at 5:37
Tejas
1,83621940
edited Nov 30 '15 at 5:37
Tejas
1,83621940
edited Nov 30 '15 at 5:37
Tejas
1,83621940
1,83621940
answered Nov 30 '15 at 4:56
VictorVictor
112
answered Nov 30 '15 at 4:56
VictorVictor
112
answered Nov 30 '15 at 4:56
VictorVictor
112
112
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
add a comment |
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
I don't need information of number of blocks but the serial number.
– Jin Cai
Nov 30 '15 at 5:57
add a comment |
You could use strace to find how smartctl get the serial number of a disk. CMD line likes this: strace smartctl -a /dev/sda. Maybe it just get the serial by ioctl.
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
add a comment |
You could use strace to find how smartctl get the serial number of a disk. CMD line likes this: strace smartctl -a /dev/sda. Maybe it just get the serial by ioctl.
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
add a comment |
You could use strace to find how smartctl get the serial number of a disk. CMD line likes this: strace smartctl -a /dev/sda. Maybe it just get the serial by ioctl.
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
You could use strace to find how smartctl get the serial number of a disk. CMD line likes this: strace smartctl -a /dev/sda. Maybe it just get the serial by ioctl.
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
answered Nov 30 '15 at 8:28
Zhengyuan LiuZhengyuan Liu
315
315
add a comment |
add a comment |
I just have a try. It do get the serial by ioctl. This is some output of strace:
open("/dev/sda", O_RDONLY|O_NONBLOCK) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[6]=[12, 00, 00, 00, 24, 00], mx_sb_len=32, iovec_count=0, dxfer_len=36, timeout=20000, flags=0, data[36]=["52[ATA WDC WD5000LPVX-0"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
add a comment |
I just have a try. It do get the serial by ioctl. This is some output of strace:
open("/dev/sda", O_RDONLY|O_NONBLOCK) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[6]=[12, 00, 00, 00, 24, 00], mx_sb_len=32, iovec_count=0, dxfer_len=36, timeout=20000, flags=0, data[36]=["52[ATA WDC WD5000LPVX-0"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
add a comment |
I just have a try. It do get the serial by ioctl. This is some output of strace:
open("/dev/sda", O_RDONLY|O_NONBLOCK) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[6]=[12, 00, 00, 00, 24, 00], mx_sb_len=32, iovec_count=0, dxfer_len=36, timeout=20000, flags=0, data[36]=["52[ATA WDC WD5000LPVX-0"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
I just have a try. It do get the serial by ioctl. This is some output of strace:
open("/dev/sda", O_RDONLY|O_NONBLOCK) = 3
fcntl(3, F_SETFD, FD_CLOEXEC) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[6]=[12, 00, 00, 00, 24, 00], mx_sb_len=32, iovec_count=0, dxfer_len=36, timeout=20000, flags=0, data[36]=["52[ATA WDC WD5000LPVX-0"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
ioctl(3, SG_IO, {'S', SG_DXFER_FROM_DEV, cmd[16]=[85, 08, 0e, 00, 00, 00, 01, 00, 00, 00, 00, 00, 00, 00, ec, 00], mx_sb_len=32, iovec_count=0, dxfer_len=512, timeout=20000, flags=0, data[512]=["zB377?731020? W -DXW11"...], status=00, masked_status=00, sb[0]=, host_status=0, driver_status=0, resid=0, duration=0, info=0}) = 0
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
edited Nov 30 '15 at 8:35
Archemar
20.2k93773
20.2k93773
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
answered Nov 30 '15 at 8:33
Zhengyuan LiuZhengyuan Liu
315
315
add a comment |
add a comment |
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grep SERIAL_SHORT /run/udev/data/b8*(your first drive would beb8:0, the secondb8:16, the thirdb8:32etc)– don_crissti
Nov 30 '15 at 3:06