SAS drives on RAID5

Hi
I have connected three SCSI/SAS drives(600GB each, i.e.1.8TB on C drive) on RAID 5 with extra/separate 600GB SAS drive as Drive D(on SCSI controller too);. Can anyone mention how can I save PageFiles, Media Cache, Media, Projects, Previews and Exports files among these drives please?? Thanks

What is the specific reason to use three disks in a raid5 and a separate disk? Why not a four disk raid5?
Assuming a single disk has a sustained transfer rate of 120 MB/s, your raid5 will deliver - depending on your raid controller - around 200 MB/s. However if you were to use a four disk raid5, that would increase to around 300 MB/s.
Currently your fastest disk is the raid5, so from a performance POV that would be the ideal disk to store your page file, previews and media cache files on, but from a storage efficiency POV, the single disk would be more attractive.
My initial reaction, without knowing your arguments for the 3 + 1 configuration, would be to use a four disk raid5 array and store everything, page file, previews and media cache next to your project and media on the same array. Easy to configure and maintain.

Similar Messages

  • Xserve Crash - Now won't boot off either SAS Drive

    Hi all,
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    Nicolas, welcome, did you boot from OS 9.1 or 9.2 for the firmware update. And exactly what happens when you attempt to boot from the external.
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  • OVM  local drives not seen - SAS drive issue

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  • MacPro Raid Card w/ SAS Drives is battery required?

    We have a MacPro (early 2008) dual 2.8 Quad with Mac Raid Card and 4 300g SAS drives. The battery became an issue early on it was always showing low on start-ups. Now it shows failed. I am now running system with 3 drives striped raid 0. Is the battery required to be replaced? I like this system for the speed it gives us on short HD, using my original media as the back-up. I am a little out of my league with the SAS drives so any opperation tips would be a plus! Thanx in advance....

    The RAID card allows for the use of SAS drives or for the use of RAID 5 (which requires checksum calculation on writes and for data re-creation after a failure).
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  • MacPro Raid ?.  Can I stripe 3 promise 450gb SAS drives.

    I'm thinking about ordering a new MacPro Quad core 3.33ghz. Along with the raid card and 3 Promise 450GB SAS drives. Can I stripe across 3 drives or does it half to be 2 or 4.
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    Most people find the Apple RAID card too much trouble.
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  • Is it possible to upgrade the Mac Pro with SCSI/SAS drives?

    Hi guys I am considering to move on to a Mac Pro from my old PC.
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    The connectors for SATA drives can be used with SAS drives. However, the controller needs to be SAS compatible. I have never installed a SAS drive in the Mac Pro bay to see what happens. If some one has a SAS drive and wants to try this I would be interested in the results.
    My guess is that the Mac Pro would not see the drive.
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  • Does my macpro work with SAS drive?

    I got seagate SAS drives, and tried to plugged to the mp, apparently my os doesnt see them.
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    Model Name: Mac Pro
    Model Identifier: MacPro1,1
    Processor Name: Dual-Core Intel Xeon
    Processor Speed: 2.66 GHz
    Number Of Processors: 2
    Total Number Of Cores: 4
    L2 Cache (per processor): 4 MB
    Memory: 1 GB
    Bus Speed: 1.33 GHz
    Boot ROM Version: MP11.005D.B00
    SMC Version: 1.7f10
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    http://techreport.com/discussions.x/15174
    http://www.barefeats.com/hard103.html
    http://www.barefeats.com/hard106.html
    http://eshop.macsales.com/item/Western%20Digital/WD3000GLFS/
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  • Plz Help sas drive What should i do?

    So I have an awesome late 2009 macbook pro 13.3", with a 2.53 GHz intel core duo processor, 500GB 5400rpm HDD, 4GB ram. I just ordered an 8GB ram upgrade from newegg, because a lot of stuff I do with my computer takes ALOT of resources. Im also looking at HDD upgrades as well, to speed up that end. I was looking at a 7200 rpm until I came across an SAS drive. It's 2.5", looks identical to SATA but at 15,000 rpm!! upon looking at my system profiler I noticed an area labeled SAS. When I looked into it, it just said that no SAS "devices" are attached. So does that mean my computer does in fact have an SAS controller? Can I use an SAS drive instead of my SATA? Please anything is helpful, I am a tiny but time constrained.

    SSD sounds really nice, and ive even found one cheaper than the hdd i was planning on getting. Now i realize its only a 40GB SSD but it would only be for my OS. My question is would this fit in my computer?
    http://www.newegg.com/Product/Product.aspx?Item=N82E16820227610&cmre=2.5%22_ssd_sata-_-20-227-610--Product
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  • Estimated random IOPS for NL-SAS drives?

    Hopefully simple question. I've seen generally accepted values for random IOPS of different speed drives (~80 for 7.2k SATA, ~140 for 2.5'' 10k SAS, ~200 for 2.5'' 15k SAS, etc.).
    What is the generally accepted IOPS value for 7.2k NL-SAS drives? I would have figured it would be about the same as 7.2k SATA, but I've been educated through a previous post that NL-SAS can achieve better IOPS through deeper queues? I can't seem to find an IOPS estimate specific to NL-SAS in my googling though.
    What value would you use for estimating potential raw capability of an array?
    This topic first appeared in the Spiceworks Community

    Hopefully simple question. I've seen generally accepted values for random IOPS of different speed drives (~80 for 7.2k SATA, ~140 for 2.5'' 10k SAS, ~200 for 2.5'' 15k SAS, etc.).
    What is the generally accepted IOPS value for 7.2k NL-SAS drives? I would have figured it would be about the same as 7.2k SATA, but I've been educated through a previous post that NL-SAS can achieve better IOPS through deeper queues? I can't seem to find an IOPS estimate specific to NL-SAS in my googling though.
    What value would you use for estimating potential raw capability of an array?
    This topic first appeared in the Spiceworks Community

  • Please help with SAS driver issue S10 6483

    I am going crazy and hope someone here can help.
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    While instaling, the system does not see the drive and asks for a driver.
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    Can some one help me figure this out?
    Thank you!
    Bill
    Solved!
    Go to Solution.

    welcome to the forum!
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    otherwise, you could try one of the following from LSI:
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    ThinkStation C20
    ThinkPad X1C · X220 · X60T · s30 · 600

  • Xserve (early 2008) with SAS drives

    Greeting All,
    Can Xserve (early 2008) add SAS driver in any bay of the chassis? Or it will like MacPro need add RAID card in it.
    Thanks,
    Spin

    Yes, SAS and SATA Apple Drive Modules (ADMs) can be mixed in Xserve.
    If you want hardware RAID, you need the add-on card.
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  • How to restore saved image to my SAS drive

    Hi all,
    I'm sure this has been discussed before but I haven't found an applicable thread yet.  
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    Thank you.
    Solved!
    Go to Solution.

    Ok, I found this (from you, when you helped someone else) and it worked!  Woohoo!
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  • S20 15K SAS Drive noise

    Hi,
    I have purchased the following:
    Lenovo ThinkStation S20 Xeon W3550 Quad-Core Processor (3.06GHz 1066MHz 8MB) 4gb (2 x 2gb) udimm ddr3 1333MHz, 300GB SAS (15k) with SAS Controller Card NVIDIA Quadro 2000
    This is a brand new system and its really noisy the case itself is fine, all the noise comes from the SAS drive. I've used other SAS drives before and there quiet like a normal HDD is the SAS drive broken or is it meant to sound like there is a little jack hammer inside the case everytime the drive reads or writes?
    The performance seems fine, the drive has the following part number: Hitachi HUS156030VLS60 SAS 15KRpm 6Gb/s 3.5"
    Here is a image of the performance from HD Tune:
    Solved!
    Go to Solution.

    jdeb - my current setup is a 160GB intel 320-series SSD for OS, swap space, and scratch disk.   for data storage i use two 1TB WD10JPVT 2.5" notebook drives in RAID 1.   i have a third WD10JPVT inside for daily backups.   then, i have an external thinkpad eSATA+USB secure HDD enclosure with a fourth WD10JPVT inside.
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    ThinkStation C20
    ThinkPad X1C · X220 · X60T · s30 · 600

  • Booting Mac Pro in Windows from SAS drive - has anyone else done this?

    I'm trying to boot both Windows (Vista 64bit) and Mac OS X.5 from an internal SAS drive (I don't need RAID). I've done some research and discovered that the following options won't work:
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    At present I've installed an Atto 308H SAS controller, but can't get it to boot.
    Has anyone else successfully used the Atto card (or anything else)? If so, how did you do it?
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    Further to the above: I have now managed to install and boot Vista64 from the SAS drive.
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  • Cisco UCS C220 MS SFF won't boot past BIOS screen with 2x1.2TB SAS drives installed

    We have been running a few of these servers with only a 500GB 6GB SATA 7.2K drive installed with all VM's (Hyper-V) sitting on an attached SAN.
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    Hi Lauren,
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