Disk Speeds / Disk Performance

Posted on 2009-04-23
Last Modified: 2012-05-06

I'm trying to order afew 1u / 2u servers from Dell but the question i'm in need of help is the hard disk is a very important factor for these servers i need the best performance an speed on read.

writing to these disks isn't a important part just the read is. these servers are going to be hosting gaming servers so when the map changes on a server the quicker the hard disk is the quicker the map changes! Just to give you an idea.

now which would be quicker the setup of the server so far is
Intel Xeon 5400 2.8Ghz Quad Core

the disk options are:
Sata-II 15K RPM 500GB
Raid 0 + 2x Sata-II 7.2RPM
Raid 0 + 2x Sata-II 10K RPM
SCSI setup
SAS setup
Question by:xP3000
    LVL 10

    Expert Comment

    Which model Poweredge is it?
    LVL 87

    Assisted Solution

    Use SCSI HD's and raid 5 if you only need fast reads and not writes. With raid 0 you have no redundancy, but have fast writes, while raid 5 gives you normal write speeds and fast reading speeds. SCSI HD's are still faster than other disks.
    LVL 95

    Accepted Solution

    If you need fast reads, have you considered purchasing (separately if necessary) SSDs?  (Solid State Drives)?  They aren't THAT cheap but the 128 GB drives are getting somewhat reasonable in price (depending on how much space you actually need).

    Otherwise, I would go with a RAID 10/0+1 for performance using the fastest disks you can find (15K RPM if SSDs are not an option).
    LVL 55

    Assisted Solution

    15k SFF SAS. RAID 10 assuming the controller does load-balanced reads across both halves of a mirror. Short-stroke them by formatting to a capacity less than the total available space if you can.
    LVL 3

    Expert Comment

    if you aren't too worried about writes and more concerned with reads go for SAS 15k (SAS is almost as fast as FC) and RAID 5.

    RAID 5 is not the best for writing (due to the parity calculation) but is good for reading as you can utilise all disk spindles (while in RAID 10 half aren't in use as they are mirrored).

    RAID 5 will give you redundancy for one disk failure (parity bit sits on each HD in array)
    LVL 55

    Expert Comment

    You must have a pretty poor controller if it only uses half the disks during read, proper ones balance the reads over both disks in a mirror like I said before.
    LVL 1

    Author Closing Comment


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    What Security Threats Are You Missing?

    Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

    I don't know if many of you have made the great mistake of using the Cisco Thin Client model with the management software VXC. If you have then you are probably more then familiar with the incredibly clunky interface, the numerous work arounds, and …
    New Windows 7 Installations take days for Windows-Updates to show up and install. This can easily be fixed. I have finally decided to write an article because this seems to get asked several times a day lately. This Article and the Links apply to…
    This tutorial will walk an individual through setting the global and backup job media overwrite and protection periods in Backup Exec 2012. Log onto the Backup Exec Central Administration Server. Examine the services. If all or most of them are stop…
    The viewer will learn how to start File History, a MACINTOSH like backup utility built into windows 8, on your Windows 8 computer. To open the File History control panel swipe from the right  side to get the search menu or position the cursor in the…

    758 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    13 Experts available now in Live!

    Get 1:1 Help Now