Tuesday, August 28, 2012

Best HDD performance server configuration




System Engineer most slow, causing a bottleneck in the performance of your computer, the device is a hard disk that will be familiar.

 Worth of computer devices in recent years become very good performance, particularly the performance should be this bad. Of course, turning the game on the PC than the specification may be lower.
 But nonetheless the speed of the HDD are not satisfied does Yet until the SSD's performance will force the server needs to match the performance.

 Only too professional knowledge, except commonly used RAID-1 and RAID-5 will explain. (Best performance RAID 0 + 1, but do not use a lot of relationships, we will subtract.)


RAID configuration, the S / W H / W as possible.
Dynamic disk in Windows Disk Management S / W as a convert after available.
Server performance due to the S / W is slightly eaten.
H / W as a tolerable Array controller on the server appears. Thing about mounting
Professional use of a separate device implementation faster, making it the best place.

RAID-1
 RAID-1 mirroring. Two disks on the same information will be recorded.
 Pasting data copied to a different server, the disk did not fail, the failure by one I operated on does not interfere, is also available.
 When I read the note to give to the two when data required by dividing the amount of reads from both disks at the same time. Theoretically write speed is a little slow and the read speed 2x faster, but ... Does not feel like it.

RAID-5
 More technical part of a lot of information, so I will not.
 (The total number of disks - 1) as default and can be set from the amount of disk space you can use more than one drive. The disk, the faster the write speed reading speed more. One enters the space, the parity bit error check bits. The parity bit is not the only flocking to one of the disk, and then turns the record.

 For example, assuming that you have configured RAID-5 DISK 9 1BYTE write (8bit doeget jiyo)
 Eight disks 1bit by writing a ninth parity bit recorded on the disc.
 Than writing 8bit DISK 1 DISK 1 bit per record eight times faster write speeds do, huh.

 DISK many cases such as disk access SQL configuration will

DISK configuration of the server
 Optimal configuration, in order to isolate the portion of the area and the normal OS DATA will

 146GB * 2ea: RAID-1: total 146GB available
 - C: 70GB: OS installed, D: 70GB: Other Application Installation

 300GB * 4ea: RAID-1: total 900GB available
Mount E: 900GB SQL or Exchange of Data. (Application) mounted on D:
Not be extended to make several small disk capacity will improve performance and reduce the loss of disk 1 minute bondamyeon.

Additional performance to 146GB * 2ea: RAID-1 configuration: 146GB available
Log mount F: 140GB available: SQL or Exchange. OS of the Paging file mounted.

= Amount consists of the cost of the minimum-phase if ... DISK 4 pieces RAID-5 configuration C: D: Chainloading.
 There are some cases, if your DISK 3 consists It would be difficult to expect the performance.
 DISK 2 Mirroring Configuration and paging files, installation files, backup files, etc. to one storage phase unimportant things even moved us to help with performance. The same capacity that can be used anyway.

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