run a backup script called /root/backup.sh which runs rsync command. However, rsync makes a lot of disks I/O and network I/O. I would like to reduce both disk and network I/O. My server has 10Mbps server connection with 160GB SATA hard drive. How do I reduce disk I/O so that the entire system does not die or become unresponsive?
ow do I create a symbolic links under Linux or Unix like operating systems using command line options?
Q. How can I copy one hard disk to another using dd command?
A. dd command can copy disk in raw format. It will copy partition table and bootloader and all partitions within this disk. For example, you can copy /dev/sda to /dev/sdb (same size) using the following dd command. dd should complete with no errors, but output the number of records read and written.
Login as the root user (use sudo or su command)
These examples may result into data loss, ensure there are good backups before doing this, as using dd wrong way can be dangerous.
Open terminal or shell prompt and type the following dd command:
# dd if=/dev/sda of=/dev/sdb
- if=/dev/sda : Input disk (source)
- of=/dev/sdb : Output disk (destination)
You can also copy hard disk or partition image to another system using a network and netcat (nc) command.
Can you tell me a Linux command to find out information about my hard disk such as description, product name, bus type, size, and cache memory size under Linux operating systems using command line options?
How do I copy MBR from one hard disk to another hard disk under Debian Linux?
How do I find out the make, model and serial number for my SCSI or IDE hard disks under CentOS Linux server? How do I get vendor information about my disk storage w/o opening my Intel / AMD server chassis?