使用ssh测试群晖NAS中硬盘的读写速度

1、ssh远程登录群晖

2、切换的root账户

sudo -i
sudo -i
sudo -i

输入密码后，会切换到root账户

3、确定要测试硬盘的位置、代号

fdisk -l
fdisk -l
fdisk -l

会得到每块硬盘的位置、代号，找到要测试的硬盘，如图：

Disk /dev/sdc: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors Disk model: MG04ACA400E Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 85847E27-057D-4794-88F7-A47B04F62C28 Device Start End Sectors Size Type /dev/sdc1 8192 16785407 16777216 8G Linux RAID /dev/sdc2 16785408 20979711 4194304 2G Linux RAID /dev/sdc3 21241856 7813832351 7792590496 3.6T Linux RAID
Disk /dev/sdc: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors Disk model: MG04ACA400E Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 85847E27-057D-4794-88F7-A47B04F62C28 Device Start End Sectors Size Type /dev/sdc1 8192 16785407 16777216 8G Linux RAID /dev/sdc2 16785408 20979711 4194304 2G Linux RAID /dev/sdc3 21241856 7813832351 7792590496 3.6T Linux RAID
Disk /dev/sdc: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors Disk model: MG04ACA400E Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 85847E27-057D-4794-88F7-A47B04F62C28 Device Start End Sectors Size Type /dev/sdc1 8192 16785407 16777216 8G Linux RAID /dev/sdc2 16785408 20979711 4194304 2G Linux RAID /dev/sdc3 21241856 7813832351 7792590496 3.6T Linux RAID

4、测试读速度

sudo hdparm -Tt /dev/sdc3 
sudo hdparm -Tt /dev/sdc3 
sudo hdparm -Tt /dev/sdc3 

注意：最后的位置要替换成自己的

结果：

/dev/sdc3: Timing cached reads: 3338 MB in 2.00 seconds = 1669.52 MB/sec Timing buffered disk reads: 350 MB in 3.02 seconds = 115.74 MB/sec
/dev/sdc3: Timing cached reads: 3338 MB in 2.00 seconds = 1669.52 MB/sec Timing buffered disk reads: 350 MB in 3.02 seconds = 115.74 MB/sec
/dev/sdc3: Timing cached reads: 3338 MB in 2.00 seconds = 1669.52 MB/sec Timing buffered disk reads: 350 MB in 3.02 seconds = 115.74 MB/sec

第一行是读取缓存中的数据的速度，实际上并不代表硬盘的真实读速，而是内存缓存速度，通常是非常快的。

第二行是硬盘的真实读取速度，也就是从硬盘实际读取数据的速度。

5、测试写速度

sudo dd if=/dev/zero of=/volume1/testfile bs=1M count=1024 oflag=direct
sudo dd if=/dev/zero of=/volume1/testfile bs=1M count=1024 oflag=direct
sudo dd if=/dev/zero of=/volume1/testfile bs=1M count=1024 oflag=direct

这里 /volume1/testfile 是一个存储路径，你可以根据需要选择其他路径

这个命令将会创建一个 1GB 的文件并进行写入测试，测试完成后会显示写入速度

1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 10.6766 s, 101 MB/s
1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 10.6766 s, 101 MB/s
1024+0 records in 1024+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 10.6766 s, 101 MB/s

6、删除测试文件

cd /volume1 
cd /volume1 
cd /volume1 

定位到测试文件目录

rm testfile 
rm testfile 
rm testfile 

删除测试文件

原文链接：https://blog.csdn.net/weixin_51789501/article/details/144149387?ops_request_misc=%257B%2522request%255Fid%2522%253A%25223081d990b7d56eb552abba0aa9ef5dca%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=3081d990b7d56eb552abba0aa9ef5dca&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_ecpm_v1~times_rank-19-144149387-null-null.nonecase&utm_term=%E9%A3%9E%E7%89%9BOS