On 22/12/2011 7:25 p.m., Benjamin wrote:
Hi,
While we are planning for fast disk, h/w vendor tells that for
SAS(15k) they suggest raid controller.But as per squid , they do not
suggest RAID terminology.So suppose if we use disks as normal each
single disk rather than as single raid ( bunch of disk) with raid
controller, is has any performance impact?
What is best for disk ? each disk as single disk or need to go with
raid controller with as a raid ( bunch of disks) ?
Kindly suggest us, what is the better option while planing for h/w
selection.?
Thanks,
Benjamin
As Chai Wei said, RAID on the OS partition for system protection. But
For the Squid cache_dir individual disks.
On a high performance install such as the one you are aiming for Squid
will push the disks to their hardware I/O limits, RAID just gets in the
way. If you have to use RAID at all (SAN situations) make sure it has a
high performance hardware controller and is set to the RAID type with
lowest possible overheads.
Amos
