Windows 8 and 8.1 Forums


Windows 8.1 RAID issue?

  1. #1


    Posts : 19
    Windows 8.1 Pro x64

    Windows 8.1 RAID issue?


    I've noticed that since upgrading to Windows 8.1, it doesn't seem to want to detect my RAID array. Upon system boot, it's not detected, but a few minutes after boot up, it detects my array as a removable device (even though they are connected to the motherboard's SATA ports).

    Also, the detection of the array is spotty at best as it has now three times become "disconnected" from the system (as in, the OS stopped communicating with them as if they'd been unplugged), all of them generating a blue screen of DPC_WATCHDOG_VIOLATION

    Information on the blue screens from reliability monitor:

    Source
    Windows

    Summary
    Shut down unexpectedly

    Date
    ‎10/‎19/‎2013 10:45 AM

    Status
    Solution available

    Problem signature
    Problem Event Name: BlueScreen
    Code: 133
    Parameter 1: 0
    Parameter 2: 501
    Parameter 3: 500
    Parameter 4: 0
    OS version: 6_3_9600
    Service Pack: 0_0
    Product: 256_1
    OS Version: 6.3.9600.2.0.0.256.48
    Locale ID: 1033

    Extra information about the problem
    Bucket ID: 0x133_DPC_storport!RaidAdapterAcquireInterruptLock
    Source
    Windows

    Summary
    Shut down unexpectedly

    Date
    ‎10/‎19/‎2013 11:19 AM

    Status
    Solution available

    Problem signature
    Problem Event Name: BlueScreen
    Code: 133
    Parameter 1: 0
    Parameter 2: 501
    Parameter 3: 500
    Parameter 4: 0
    OS version: 6_3_9600
    Service Pack: 0_0
    Product: 256_1
    OS Version: 6.3.9600.2.0.0.256.48
    Locale ID: 1033

    Extra information about the problem
    Bucket ID: 0x133_DPC_storport!RaidAdapterAcquireInterruptLock
    Source
    Windows

    Summary
    Shut down unexpectedly

    Date
    ‎10/‎19/‎2013 11:41 AM

    Status
    Solution available

    Problem signature
    Problem Event Name: BlueScreen
    Code: 133
    Parameter 1: 0
    Parameter 2: 501
    Parameter 3: 500
    Parameter 4: 0
    OS version: 6_3_9600
    Service Pack: 0_0
    Product: 256_1
    OS Version: 6.3.9600.2.0.0.256.48
    Locale ID: 1033

    Extra information about the problem
    Bucket ID: 0x133_DPC_storport!RaidAdapterAcquireInterruptLock

      My System SpecsSystem Spec

  2. #2


    Posts : 19
    Windows 8.1 Pro x64


    Problem solved.

    It turned out that flashing a new SSD firmware has fixed the issue.
      My System SpecsSystem Spec

  3. #3


    Posts : 2
    Windows 8.1

    Yet another Windows 8.1 RAID issue


    Hello everybody. This is my question.
    Yesterday night I upgraded my system from Windows 8 to Windows 8.1.
    I have a SSD 128 GB with the operating system and few apps in it, and then 2 RAID SATA Hard disk (western digital), 2 TB each, with all the data inside (in windows explore I obviously see only one hard drive of 2TB, in addition to the SSD).
    After installing the upgrade, I wanted to cry: the SSD was ok, with all the data and the OS.
    However, the RAID hard disk was EMPTY. No data at all, and the links to the application installed in this drive were erased.
    I'm desperate: does anyone know what has gone on??
    Thank you for your attention and support.
      My System SpecsSystem Spec

  4. #4


    Hafnarfjörđur IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Hi there
    For HOME users I wonder why these days people BOTHER with RAID at all -- you loose half your disk space (assuming RAID 0 which is probably what a home computer would probably use) for very questionable performance improvement - especially if the OS is on an SSD and RAID is merely for DATA -- you don't need mega fast disks for playing movies etc.

    I'd Unswitch the RAID and have 4TB of disk space rather than a 2 X 2TB array of questionable value, and if the RAID gets hosed up for any reason then you've lost BOTH disks. (In other words a fault say on Disk1 will mean BOTH disks1 and 2 are unuseable until the fault is rectified and you've lost the entire 2TB).

    If data has disappeared from the HDD's then only some special recovery program will retrieve it -- this emphasises again the IMPORTANCE OF HAVING ADEQUATE BACKUPS.

    I don't know how many times this warning is repeated on this and on the W7 Forum -- I would ensure that the first time anybody logs on to ANY computer the user is prompted to BACK UP EVERYTHING INCLUDING USER DATA before allowing logon to continue.

    ALWAYS BACK EVERYTHING UP BEFORE PERFORMING ANY UPGRADE !!!!!!! (this surely must be approaching the Guiness Book of Records for the maximum number of times the same sentence has has been posted on the Internet).

    Cheers
    jimbo
      My System SpecsSystem Spec

  5. #5


    Posts : 2
    Windows 8.1


    Thank you very much, Jimbo. I assume it is my fault not to have backed up recently.. and for sure, I would stick your sentence in front of my desk and bed.
    Thank you also for the advice regarding the RAID setting. Just a question: isn't RAID used to keep data safer, cause there's a double-copy of every single bit? Or is it good only for improving the reading/writing speeds?
    A spontaneous question: how could it be possible that Windows 8.1 deliberately deleted all my data, even if they were in another hard drive?? Why didn't it happen when I upgraded from windows 7 to 8 in the same machine with the same configuration?? I mean, the step between 7 and 8 is larger than from 8 to 8.1..

    Finally, just a supposition: may it have happened that windows switched off the RAID, keeping all the data safe in one of the 2 drives and formatting the other one, keeping "usable" only the latter (and the former being invisible)?

    Sorry for my inexperience, and thanks to anyone who could solve my doubts.
    Thank you jimbo again for your courtesy.
      My System SpecsSystem Spec

  6. #6


    Posts : 5
    Windows 8 Pro


    Hi,
    RAID 0 creates a striped volume where data is spread across the 2 drives and the loss of one drive means the loss of all data.
    RAID 1 mirrors one disk to another for data redundancy and the loss of one disk should mean that there is still a working copy on the remaining disk. It's not perfect because in the case of file corruption or rogue software that corrupts the disk index then this can also mean data loss. There is no replacement for a Grandfather / Father / Son backup of data ..... i.e. 3 rolling backups. For example, I have a 1GB RAID 1 setup for data and 3 x external 1GB drives for a rolling backup system.

    The other side to RAID is whether to use the functionality provided by the motherboard or create RAID sets using the functionality built into Windows 7 or 8. Most motherboard on-board RAID is a fudge and from my experience offers little advantage over using Windows functionality. With all the hardware RAID systems I have used you always have to remember to load the RAID driver at Windows install. Do a search in google comparing hardware or software raid .... there's plenty to read on the subject.
    I have moved from using hardware RAID to using the Windows functionality. I've installed & re-installed Windows many times and have found that there is no performance penalty using Windows RAID. In many respects it is easier using Windows RAID.
    Good luck
      My System SpecsSystem Spec

  7. #7


    The purpose of RAID 0 is to improve performance, which it does, but usually not enough to offset the disadvantages. It provides no redundancy and protects nothing. For typical use it's use it is not recommended.

    The purpose of RAID 1 is to maintain access to your data in the event of a drive failure. This is a BIG deal in a busy server where a drive failure is highly disruptive to normal business activities and staff are unable to do their work. RAID 1 allows drive replacement to be deferred to a more convenient time.

    But the purpose of RAID 1 is NOT to protect your data.

    This needs to be emphasized: RAID 1 DOES NOT PROTECT YOUR DATA.

    That is what backups are for. RAID 1 offers protection only from drive failure, and even that cannot be relied on. For other causes of data loss, and there are many, it offers no protection whatsoever.

    All files of any importance need a backup copy while those of particular importance need at least 2 backup copies. Having no backups is asking for trouble.

    RAID 1 is a good thing and I have no objection to using it. Just be sure you understand what it is, and more important, what it is not.
      My System SpecsSystem Spec

  8. #8


    Hafnarfjörđur IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Hi there
    High performance servers are one thing - but these days for HOME computers is ANY sort of RAID actually worth it -- large capacity cheap external HDD's are available for any amount of backup - I recommend those small self powered 2TB Passport pocket size drives - while any decent OS performance can be had easily - even on quite OLD hardware by installing the OS on an SSD.

    Do you at home really need for example to waste HALF the disk space in using any sort of RAID - most home computers aren't servers that need to be operational 24 hrs a day so "downtime" when it's necessary to recover data from your external backup sets isn't an issue.

    I'd rather have 4TB of user data available rather than 2 X 2 TB in a RAID -- In all the years of using computers I can honestly say that I've experienced only about 2 hdd's completely fail in the last 25 YEARS !!.

    If you are running something like a BANK server or other fast access 100% reliable always on database type of system - then that's another issue - and in that case you should be using top end SCSI Disks - not el-cheapo consumer grade ones anyway for your RAID setup. This IMO is way over the top for Home computers and is totally unnecessary too -- given that you could fit an SSD for the OS and major applications I doubt that you would see any gain whatsoever in using RAID - restoring a failed OS to another SSD would take around 10 - 30 mins on most systems - and data recovery would be a synch from a decent backup anyway.

    Cheers
    jimbo
      My System SpecsSystem Spec

  9. #9


    You don't lose half your disk space by using R0, you don't lose any actually. I have no idea what you mean by that.
      My System SpecsSystem Spec

  10. #10


    Hafnarfjörđur IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10


    Quote Originally Posted by DooRules View Post
    You don't lose half your disk space by using R0, you don't lose any actually. I have no idea what you mean by that.
    Hi there
    what I meant by "losing half your disk space" is that a RAID 1 array of a 2 X 2 TB array gives you 2TB - whereas running these as separate "Normal" discrete disks gives you 4TB -- now in My Maths 2TB is Less than 4TB by a SIGNIFICANT amount. !!!

    There is TOTALLY NO POINT in using RAID 0 in Windows since you already have a built in facility called SPANNED Volumes which does the same thing much more safely -- and if you have UNEQUAL size disks the WHOLE sizes are spanned whereas in RAID 0 the size of the data space available is dependent on the size of the smallest volume - e.g 100GB and 350 GB Raid 0 would give you 2 * Min(100, 350) i.e 2 X 100 = 200 GB.

    Forget RAID 0 on Windows --waste of time. Raid 1 also isn't necessary either - this is the one that mirrors the disks so only half the data space is available to the user.

    Screenshot below shows spanned volume with a 3TB and a 750 GB HDD - windows thinks its a single drive "F".

    (I need this facility as I have two very large multi-media libraries which need to be in single directories - i.e THEY can't span volumes - but what Windows does is make Drive "F" appear to the application as a single large drive).

    Cheers
    jimbo
    Attached Thumbnails Attached Thumbnails span2.png   span3.png  
      My System SpecsSystem Spec

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