Table of Contents

Disk cache

Disk cache concepct

Creating a block device which can be used as cache for Video On Demand streaming.

Disk cache create

Flashcache??

Method

for i in $(lsscsi |awk '{print $NF}'); do if ! echo $(file -Lbs $i) |grep -qc partition; then echo $i; fi; done;

sfdisk partition map:

# partition table of /dev/sda
unit: sectors

/dev/sda1 : start=     2048, size=976771120, Id=fd
/dev/sda2 : start=        0, size=        0, Id= 0
/dev/sda3 : start=        0, size=        0, Id= 0
/dev/sda4 : start=        0, size=        0, Id= 0

haraidolnank:

mdadm -C /dev/md0 -l 1 -n 2 /dev/sda1 /dev/sdb1
mkfs.ext4 /dev/md0 (vagy mas)
mount -o noatime,nobarrier /dev/md0 /srv/cache