Recommendations for RAID enclosure

I'm looking for a RAID enclosure with the following specifications:
2 drive
Hot swap
RAID level 1 or 0 (hardware RAID)
Internal power supply (no power brick)
I've purchased Wiebetech RAIDTech RT8-0 enclosures in the past and I love them, but it doesn't seem Wiebetech makes them anymore.
Any suggestions?

Pl do not post duplicates - Best Performance for apex over Linux+HW RAID - continue the discussion in your earlier thread

Similar Messages

  • Recommendations for RAID - HP ACU/Oracle Apex/Oracle Grid/Linux 6.3

    Dear Experts,
    Given:
    - HW : HP ProLiant DL370 G6
    - OS : Oracle Enterprise Linux 6.3
    - Oracle Grid Infrastructure 11g R2
    - Oracle Apex 4.2
    Current Status
    When I have entered HP ACU from bootable Smart Start CD, I found under the configuration of Smart Array P410i in Embedded Slot, the following:
    -Smart Array P410i in Embedded Slot
    ---Internal Drive Cage at Port 1I : Box 1
    ------300 GB 2-Part SAS Drive at Part 1I : Box 1 : Bay 1
    ------300 GB 2-Part SAS Drive at Part 1I : Box 1 : Bay 2
    ------300 GB 2-Part SAS Drive at Part 1I : Box 1 : Bay 3
    ------300 GB 2-Part SAS Drive at Part 1I : Box 1 : Bay 4
    ---Internal Drive Cage at Port 2I : Box 1
    ------300 GB 2-Part SAS Drive at Part 2I : Box 1 : Bay 5
    ------300 GB 2-Part SAS Drive at Part 2I : Box 1 : Bay 6
    ------300 GB 2-Part SAS Drive at Part 2I : Box 1 : Bay 7
    ------300 GB 2-Part SAS Drive at Part 2I : Box 1 : Bay 8
    The questions now:
    1) Do you recommend the following configuration for RAID's logical arrays:
    Using Logical View:
    SAS Array A - 4 Logical Drive(s)
    --- Logical Drive 1 (50.0 GB, RAID 1+0) ---> for OS
    --- Logical Drive 2 (24.0 GB, RAID 0) ---> for SWAP
    --- Logical Drive 3 (200.0 GB, RAID 1+0) ---> for ASM DATA
    --- Logical Drive 4 (296.7 GB, RAID 1+0) ---> for ASM FRA
    SAS Array B - 1 Logical Drive(s)
    --- Logical Drive 5 (1.1 TB, RAID 0) ---> not critical for sources and other applications
    2) What are your recommendations for the following steps to reach oracle apex 4.2 installed?
    Best Regards
    Mahmoud

    Pl do not post duplicates - Best Performance for apex over Linux+HW RAID - continue the discussion in your earlier thread

  • Recommendations for hard drive enclosures

    Hi,
    My G5 1.8ghz Dual Power Mac finally died today after eight years good service. I'm looking to remove the hard drive and wondered if anybody had any recommendations for enclosures that I could put it in? Is there anything I need to bear in mind when buying the enclosure or are they all pretty standard? 
    I've already purchased a new iMac as a replacement computer -  I just want to be able to access the data in the old hard drive.
    Thanks in advance

    After going through several, I can only recommend those from OWC (Kappy's last link). I just stripped down a Western Digital Sudio Mac Edition external with a quad interface i bought seveal years ago to recover the bare drive becasue the enclosure's been nothing but a royal PITA.
    The drive itself is fine but the enclosure uses a very Mac-unfriendly set of hardware that has sleep issues, lock-up issues, noise issues, won't properly mount to the Desktop, runs hot, and so on. Until I get a new OWC enclosure for the bare WD drive, I moved an older OWC external to take over the backup functions and it works like a dream. And it has a slower interface (FireWire400) but takes little longer to backup than the WD with FW800.
    WD makes great internal drives--we have many in our menagerie of Macs--but their enclosures are just cheap and not Mac-friendly, even though I bought the "Mac Edition" version.

  • Is RAID 5 not recommended for Oracle database ?

    - I am planning to install Oracle database
    Here are the specs:
    - Dell PowerEdge T610 server
    - Windows 2008 R2 (64-bit )
    - 24 GB memory
    - Oracle 10g database (64-bit database)
    - Our database is for an ERP based client server application
    - Will have around 35-45 users
    - Will have around 150-200 transaction per day ( 8AM-5PM) only database
    - database would be around 10-15GB (data files)
    Now I am planning to buy the hardware server, I heard that RAID 5 is not recommended for Oracle database.
    Is it true ?
    What do you recommended for Oracle database ? RAID 5 (or) RAID 1

    johnpau2013 wrote:
    I heard that RAID 5 is not recommended for Oracle database.
    Is it true ?Kind off... as Oracle (as per the RAC Starter Kits for example) explicitly recommends SAME - as in Stripe And Mirror Everything.
    This is a combination of RAID1 and RAID0.
    However, you will also get whitepapers from storage vendors like EMC in partnership with Oracle, that explains how to configure and use RAID5 storage and how effective this is. And as some will tell you, RAID5 can work just fine with Oracle... and some others will grimace and tell you how bad an idea that is from personal experiences.
    In a nutshell - RAID5 requires a parity calculation on each write. That is a very expensive overhead if that calculation impacts the fwrite() (file write) command of a process writing data to disk. It significantly slows down the write operation.
    However, if that parity calculation is done asynchronously and does not effect the elapsed time for a fwrite(), then a fwrite() to RAID5 is as fast or as slow as it would be to RAID10 for example.
    Unsure how many modern storage system supports off-loading the parity calculation and not impacting the write I/O call. This can be done using ASICs (Application Specific Integrated Circuits), specialised s/w on the storage server, etc.
    Whatever you put in place - test the RAID config thoroughly up front and ensure that performance is up to specs. There's a utility called fio (<i>Flexible I./O</i>) written by a Linux kernel hacker that works for Oracle. It is an excellent utility to use to generate and test I/O - but it is Linux and Unix based.
    Any specific reason using Windows? Linux is by far a more predominant 64bit operating system than Windows, and has significant higher market share in Oracle RDBMS than Windows. Given the fact that over 93% of the 500 fastest computer systems on this planet runs Linux, I'm always kind of amazed that some would still use Windows as a server-side o/s for Oracle.

  • External RAID Enclosure

    Hi guys, my external raid enclosure Mapower TB32 broke down saying I/O to the disk is failing. So I am seeking to replace it with an external enclosure which can give me at least Raid 5 with 1.5 tb disk. I use an internal areca 1110 in Raid 0.
    Which one would you recommend for a budget of GBP£400. I was looking at the Areca 5020. Is there anything else I should consider here.
    Thank you.

    OK! I managed to get a Q5 as my external raid HDD. Now I have got 2 1.5TBs WD15EADS Western Digital HDDs hooked on my Areca 1110 in RAID 0. Apparently these drives are really slow for some reason, I don't know why. They are beaten by a single Seagate Hybrid in terms of benchmark. On the other hand I was planning to use theSE WD in RAID 5 alongside the 2 Seagate 1.5TBs. In addition I ordered another Seagate 1.5TB and when delivered it indicated that its a 5400rpm rather than the 7200, I currently have. So this means that I may have to RMA this HDD. Unfortunately one of my 1.5tbs just gone dead and needs to be RMA.
    Now the major question that is worrying me now is which are the HDDs to go for here. The Seagate 1.5tb @ 7200rpm appears to be out of production and they are nowhere to be seen here in Egland. I am currently considering to sell the Western Digital and the remaining Seagate on Ebay and go for something else. Are the 5400rpm 1.5tb good for HD editing or the 1tbs @7200rpm.
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  • How can I tell if HD is set up for RAID?

    I received an external Western Digital 4TB drive with some files on it and I'm trying to tell if the drive is already set up for RAID or not. The company I received it from couldn't tell me and according to the WD box, it's "pre-configured for maximum capacity (RAID 0)". However, when I go into Disk Utility to view the drive, it says the capacity is only 1.8T.
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    S.M.A.R.T. Status: Not Supported
    Partition Map Scheme: GUID Partition Table
    ...In the Partition window it looks like a single partition. Again, Size: 1.8 TB, Available space: 1.1 TB.
    Does this make sense? Sorry, I'm not familiar with RAID drives and how they're set up and used. Any help with this would be greatly appreciated.
    I'm just trying to find if this drive is in fact set up as a RAID drive and if so, is it mirroring to the second drive in the enclosure? or not? And if not why does it say that the drive is only 1.8 TB?
    Sorry for the rambling.
    Thanks.

    There is no such thing as a "RAID" drive. Any drive can be used in a RAID array. A single drive is not a RAID drive. It is simply a single drive. When multiple drives are combined into an array via software and/or hardware then one has a RAID array.
    Now as far as I can determine WD does not make a single drive larger than 2 TBs. Formatted the drives will contain roughly 1.8 TBs. WD does make a My Book version that has two 2 TB drives that can be configured into a striped RAID array that will provide 4 TBs of storage. I don't know if the product is pre-configured as a RAID array or if you must configure it as such using Disk Utility. For the latter you must first partition and format each drive then use the RAID tab option of DU to set up the RAID array. Select Disk Utility Help from the DU Help menu and search for "raid" to get the help articles on how to set up striped or mirrored RAIDs.

  • Best Xserve recommendation for Ad Studio

    Could any please provide best recommendations for Xserve with Ad Studio comprising Raid 5 3-6 TB storage, 10-20 Macs with 3 power uses wanting to work live on 2-3GB files. The xserve will also be connected to existing windows server for exchange mail. The other users are lite office users so main issue is to provide fast secure access for power users. As this is brand new site the only existing requirements is connectivity to the smbs server for mail as all data will be transferred to new xserve.

    • A basic, low-end Xserve with two internal hard drives in a mirrored RAID, and a Fibre-Channel card
    • a Promise Vtrak RAID with 6TB storage and room for expansion
    Depending on your budget, you may also want to set up a Fibre-Channel network for the power users. This is expensive and maybe optional, depending on your performance needs. Gigabit ethernet might work for the power users' connection to the server, but maybe not. For a fibre channel network you'd need:
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    • Xsan2 so more than one server/workstation can connect directly to the storage.
    • cabling
    And, of course, you'll need a solution for backing up all that data.
    Message was edited by: Brad21

  • PCIe SATA Cards for RAID for video: Seritek 2ME4-E vs Sonnet Tempo E4P

    Hey Folks,
    I'm just about to purchase bigger, faster RAID system for my video editing needs. I've already purchased 1TB Barracudas for the drives and I have decided on the Burly dual PM for the enclosure. http://www.burlystorage.com/ccp0-catshow/burlydualpm.html
    The questions is which card? I've had a seritek 2 port card and also their expresscard for years without a problem. But some tests I've seen indicate that the Sonnet is a bit faster. Then again, I know that some people had problems with the firmware at least as recently as last spring.
    What do people say? Hatter and Japamac, I'm hoping to hear from you.

    FirmTek:
    If you would like the ability to support port multiplier enclosures and 3rd party SMART applications, the FirmTek SeriTek/e6G would be my choice for a low cost 2-port 6G controller with these features. This card features hot swap and is also able to hot plug Oxford 936/946 based enclosures without the need for a restart. Installation is easy.
    I use the SeriTek/e6G in the 2009 Mac Pro with Mac OS X 10.6.5. The PCIe 2.0 slots in the 2009 model provide optimized performance. >
    http://www.firmtek.com/seritek/seritek-e6g/
    You want a 4x or above card usually, one that has more bandwidth and performance, than those low end 1x 2-port cards that can't drive enough MB/sec to make using multiple drives / multiple enclosures.
    Well, seeing you went with Seagate, not my cup of tea, I would have said WD Black Caviar 2TB drives instead.
    Sonnet 4-port E4P is what I have used but it or its drivers may be an issue, totally unsure.
    PM today is limited by today's drives. When it came out drives were slow by comparison, a mere 75MB/sec while today one drive can shovel 90-125MB/sec or half of what a PM can handle. You only get in real world about 250MB/sec maybe (overhead takes away from that 300MB/sec per port). That means while 6Gb is great, PM enclosures like FirmTek5PM need a new faster PM chip. Again, no idea where that is or when we will see it.
    Maybe you should ask about SAS and be looking at even higher end RAID controllers from Areca perhaps.

  • One IDE drive and one ATA drive in a single RAID enclosure?

    I just got an OWC AL Elite dual-drive RAID enclosure, and was told, by OWC, that I could drop an IDE drive and an ATA drive into the enclosure and it would work fine.
    It's not - If I unplug one of the drives, it works fine: the drive mounts and shows up in Disk Utility, but when both drives are plugged in, it doesn't mount, and Disk Utility sees the drive as a single 2TB drive (one drive is 300GB the other 160GB).
    any thoughts? I have the jumpers on the drives set at Cable Select, I tried them both on Master and the drive wouldn't even show up in Disk Utility.
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    Yes. I have it. They sell a model for ATA drives and SATA drives. Go into the "external enclosures" section and scroll down about halfway. It's in the multi-drive section.

  • Recommendations for arranging drives

    Heres my situatioin:
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    What is the best setup since if I run in PATA + SATA mode I can only have 4 devices (2 from each) connected.  Please give me recommendations for doing this setup.  Should I use the Promise RAID controller?  Thanks

    Try these settings in BIOS:
    ATA On Chip Mode: Native
    ATA Config: SATA Only
    PATA Keep Enabled: Yes
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    (The rest leave as default)
    or
    ATA On Chip Mode: Native
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    SATA Keep Enabled: Yes
    Set SATA as RAID: No
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  • External RAID enclosure is auto unmounting

    Just purchased a Mediasonic RAID enclosure to run as an external mirrored hard drive. I inserted both new (and identical) 1 TB HDD's in the enclosure and used OSX's disk utility to set up the RAID.
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    A purely striped RAID array will, if there is no parity, actually increase the probability of data loss since you will have your data spread through two or more drives with no backup.
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  • External Hard Drive Recommendation for iMac 24

    I'm a Mac Newbie; 25 plus years using HP's. I'm needing advise on best external HD for Time Machine and media storage. I currently have a MacBook 13" and an iMac 24 (3.06 GHz, 4 GB RAM, 1.0 TB Internal Hard Drive). I've noticed a lot of positive comments about OWC external drives, especially the Mercury Elite Series. Is there a particular model or size in that series that would make sense based on my current equipment? Also, just curious, there doesn't appear to be many recommendations for Apple Time Machine units; why not? Thanks in advance for your time into my query.

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    Do you mean Apple's Time Capsule? If so, many people are quite happy with it, but since it's more than just an external hard drive, you won't see it mentioned very often when someone asks for a recommendation for an external drive. If you need to share a drive between more than one system, and particularly if you're also in the market for a wireless base station, a Time Capsule might be just the thing for you. If all you need is an external drive for a single computer, a Time Capsule would be overkill.

  • What SATA hard drive(s) would one recommend for a G4 Sawtooth?

    I plan to replace the main IDE/ATA/PATA hard drive on a 400 MHz G4 Sawtooth.
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