scsi disks

I‘ve fast RAID-10 disk subsystem with multiple SCSI disks. Apps running under modern Linux kernel don’t write directly to the disk. They write it to the file system cache which is managed by Linux kernel virtual memory manager. Since I’ve high performance RAID controller I need to decrease the number of flushes. How do I tune virtual memory subsystem under Linux operating systems for better performance?


Q. Can you explain UUID concept related to Linux ext3 partitions and storage devices? How do I update /etc/fstab using UUID under Ubuntu Linux or any other Linux distro?


Q. My system comes with pre installed Linux and XP. Now I would like to delete a partition. How do I delete a partition? A. Hard disks can be divided into one or more logical disks called partitions. This division is described in the partition table found in sector 0 of the disk. You need […]