RAID Failure Reported

My Arch Linux system is reporting a failure when I login via Gnome. The system has the RAID partitions:
md0 = swap
md1 = /boot
md2 = /
When I login via Gnome, the system alerts me with a serious looking warning that one of two disks has multiple bad sectors on it. I fired up a terminal window and can't see what the issue is:
Personalities : [raid1]
md2 : active raid1 sda3[0] sdb3[1]
974365187 blocks super 1.2 [2/2] [UU]
md1 : active raid1 sda2[0] sdb2[1]
393472 blocks [2/2] [UU]
md0 : active raid1 sda1[0] sdb1[1]
1999025 blocks super 1.2 [2/2] [UU]
From the info above, everything reports fine and shows both disks on each partition to be UP/UP.
Here is the graphical disk utility reporting an error:
http://img813.imageshack.us/i/raidq.png/

Look at the SMART output, or use smartmontools.
The disk probably has just a few bad sectors which it internally relocated, so the RAID arrays are still fine.  But it may be an indication that the drive is slowly dying, anyway.
I'm in the same situation and ordered a new disk straight away.

Similar Messages

  • Ambiguous RAID failure

    Early 2008 Mac Pro with Apple RAID card and 4 x 1TB drives installed.
    I've had yet another RAID failure on my system (it's happened several times before) but this time the diaganostic is ambiguous and I need to make absolutely sure what's happened before I try to recover from it.
    Overnight the RAID Utility log reported that Drive 3 had failed, that Raid Set RS1 was now degraded, and that there was no spare available for rebuild.
    When I look now in RAID Utility at the status of the drives and of the array, all four drives show "green" (SMART: Verified and Status: Good), and Raid Set RS1 is "Viable (Degraded)".  But it shows the drives in Bays 2, 3, 4 as "Assigned" to Raid Set RS1, while the drive in Bay is not: it shows as "Roaming".
    I'm fairly sure that one of the drives actually is problematic, because I've been having increasingly frequent episodes of freezing and non-responsiveness on the system (spinning beachball).  In the past couple of days it got so bad that it was difficult to do anything at all following a restart; the freeze/beachball happened very soon after.  I remember now that I had exactly this symptom in the past, just prior to a drive failure that RAID Utility reported.
    So I guess I need to replace one of the drives, mark it as "Spare" in RAID Utility, and let the array rebuild.
    But WHICH drive should I replace?  The log says that Drive 3 failed (I'm assuming that "Drive 3" is the drive in "Bay 3"), but now that drive shows as "good"--as do all four drives.  It's Drive 1 (i.e. the drive in Bay 1) that's been taken out of the array; drives 2, 3, and 4 are in Raid Set RS1.  Is that a red herring?  Is it possible that Drive 1 is bad even though the report was about Drive 3?  (Drive 1 is the only drive that has never been replaced at any time in the four years since I got this system.)
    I think/fear that if I replace Drive 3, I'll blow away the array.
    So it seems to me that I should rebuild the array by marking Drive 1 as spare (since it's the only drive that's unassigned), wait for it to complete, and then replace Drive 3 and rebuild again.  Or maybe I should just replace Drive 1 pre-emptively.
    I don't know, but it takes a full 72 hours for the re-build to complete, a nerve-wracking time because throughout it the system is vulnerable to a second drive failure, so I would prefer not to have to do it multiple times.
    Can someone please tell me in detail what the safest/most correct way is to proceed in order to recover from this?
    Thanks.

    Thanks, but it doesn't seem to be related to swapping/paging or to CPU usage by a runaway process.  The system always seems to have plenty of RAM (18 GB is installed) and neither Activity Monitor nor iStat Menus ever seem to show anything obviously suspicious (nor does "top" when I run that),  No swapping, no processes consuming all the CPU (also, it's an 8-core machine).
    What typically happens is that the system will seem fine, but then running a new command, or (e.g.) asking my IMAP client to move some files, provokes a hang: everything locks up, spinning beachball, etc.  Sometimes this is preceded by an obvious degradation in performance, but sometimes not.
    It "feels" disk-related and in the past I had similar symptoms preceding a disk failure (as I did before replacing the drive a few days ago).  But I can't see anything relevant in the log files, and in the past, when a disk failed, I didn't see clear evidence of this in the logs until RAID Utility declared the failure--nothing previous to that.
    Is there some way to increase the verbosity of the disk-related logging?  If a disk really is problematic, even if the problems are recoverable after retries, you'd think that would be detectable by the system and that it could be logged.
    The only other things I can think of trying right now are either: (1) replacing the remaining drives in the RAID Array one by one, starting with the drive in Bay 3 (because of the earlier ambiguity), and/or (2) disconnecting as much as possible from the system and seeing if it becomes more stable in that configuration.  Though I've already mostly done (2) without any obvious improvement,

  • No Data to display in Application failure report for a specific Application

    Hi ,
    For a specific application,Application failure report showing no data to display but for the same application other reports shows value.
    Application failure reports seems to work fine for some other application except few.Need to know the root cause.
    Kindly help us to sort this issue.
    Thanks & Regards,
    Preethi S

    Hi,
    Is there any error message when you run Application Failure Analysis report for the specific application?
    Does this application have any failure alerts?
    You may also look into operation manager even logs to check is there any errors or warnings.
    Regards,
    Yan Li
    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

  • Windows 7 has no notification of RAID failure?

    This is a repost of this thread: http://social.technet.microsoft.com/Forums/en-US/w7itprogeneral/thread/a77c6445-e504-4394-a945-7a6c096e0871 
    Per Technet, being a subscriber guarantees me a response from a Microsoft Engineer within two business days, but the previous thread was not answered satisfactorily, and now Microsoft seems to be ignoring it.  Since my previous thread went unresolved
    and this is of critical importance, I chose to repost this and get a real answer from Microsoft.
    Having Software RAID as a built-in option seems like a great idea. Hard disks are notoriously unreliable, and they carry the most important part of our technological world: our data. Being able to easily build a software RAID from two cheap 1TB drives gives
    me so much piece of mind ... or does it?
    I've noticed my software RAID seems to be periodically losing sync.* This is worrisome (maybe a drive is failing?) but not nearly as worrisome as HOW I noticed it. For some reason, after cruising along smoothly for several months with my RAID 1, I decided
    to check on its status in Computer Management -> Disk Management. And, oh nos! there was my software RAID with a Failed Redundancy Error. I had to "Reactivate Disk" and it started resynching. I decided to check again every so often and everything was fine
    again for a while until I lost synch again.
    Again, my losing synch is not the point of this post. My point is why was there NO NOTIFICATION of my synchronization loss? I have NO IDEA how long my drives had lost synchronization before I stumbled upon that fact the first time. What is the point of software
    RAID if Windows does not inform you that it has failed? I could lose one drive, go cruising along for months thinking I'm fine, then lose the other drive and POW! I'm left with nothing due to a false sense of security (please no lectures on RAID being for
    reducing downtime and not for use as a backup solution - I KNOW).
    I just had another loss of synchronization, and I checked around to see if I had been notified anywhere else (the Action Center seems like it could be a good candidate for this). Finding nothing, I've come here to post my concerns.
    But in order to maintain my required level of uptime, I need to KNOW when a drive has failed redundancy so I can correct the situation (by replacing the drive or other). Where is the notification that I am running on only one drive?
    Update: In the previous thread, it was suggested I use the Windows Task Scheduler to make my own custom notification based on RAID failure events in the Event Viewer.  After investigating this unnecessarily obtuse (but usable) solution, it was found
    that Windows 7 does not generate any events for RAID synchronization failures.  This is astounding.  What I really want is graphical, e-mail, and event notification of a drive failure.  I will take just an event.  I find it amazing that
    the new "Action Center" thinks it is important enough to tell me that my Flash player has a problem, but can't let me know that a drive is failing.  This seems like the perfect job for an OS notification system: to warn you when the feces is about to
    impact the ventilator.
    *Update: the disk in question ended up dying completely and was replaced under warranty with no problems and the machine is now happily cruising along with 2 working and synchronized hard drives once again.  I would have never noticed I had a failed
    hard drive if I didn't check on my own.

    This is another Kludge that works on Windows 7
    Microsoft Sysinternals has the BGInfo tool, which you can add vbscripts to generate additional data that gets included in the display.
    For example:
    Fields
    - Custom - New - 'MyRAID'
    * VB Script file
    Path: C:\raidchk.vbs
    The contents of raidchk.vbs are below and belong to three websites, put together.
    Site A. provided the idea for a vbscript to parse the diskpart.exe info
    Site B. provided a better script that produced wscript messages
    Site C. explained the wscript object was not available in VB script and to use Createobject instead
    Once the script is generating output, adding it to the BGInfo configuration display is as easy as adding the line:
    MyRAID:   <MyRAID>
    The output of the script gets substituted into the display field.
    An improvement would be to WinTask schedule it to periodically update it. The length of the message output will dynamically "shift" the display front an center when a major event happens. The Vbscript could also include a. email, b. eventlogger,
    c. whistles and bells audio.. ect..
    The reason the information is so hard to get at appears to be because VDS is a COM object based service, which brokers a user tool connection to vendor raid COM interface. There is no native wmi provider that will subscribe to the Microsoft RAID notifications
    and provide status information, let alone bind to a notification service like email or eventx. diskpart or dmadmin are the limits provided.
    But it almost looks like something Powershell could handle.
    VDS Under PowerShell - a hint that it could be done
    Some references that the information is readily available:
    Volume Object- Mirror is a type of volume to VDS
    VDS_VOLUME_PROP structure - a VDS volume has a status structure
    status - A
    VDS_VOLUME_STATUS enumeration value that specifies the status of the volume.
    health - A
    VDS_HEALTH enumeration value that specifies the health state of the volume.
    TransitionState - A
    VDS_TRANSITION_STATE enumeration value that specifies the transition state of the volume.
    VDS_VOLUME_NOTIFICATION structure - a VDS volume
    An application can receive volume events by implementing the
    IVdsAdviseSink interface and passing the interface pointer as an argument to the
    IVdsService::Advise method.
    To get the volume object, use the
    IVdsService::GetObject method. You can then use the
    IVdsVolume::GetProperties method or the
    IVdsVolume2::GetProperties2 method to get the volume properties.
    VDS Notifications
    I say that without looking around very much. The recommended language for implementing a provider are C/C++ ect.. although I've never heard of a VB script wmi provider.. I think there would be data type language problems. Thus we are left with polling
    as with most scripting, or some sort of event trigger like a eventx alert that will run a script as needed. The Advanced XMLconfig for Windows Task Scheduler in Win 7/2008 is quite advanced and has a fine degree of control for matching events if there are
    events being logged by the VDS service with actual source data.
    VDS is on the way out, the COM interface is deprecated and will not support storage spaces, likewise the API and tools for Storage Spaces will not support VDS. This is a "take a leap of faith" moment.
    I tend to prefer to wait a year or two before trusting my data to the effort.
    As for Software vs Intel ICH vs dedicated HBA ?
    I'm interested at a low level for personal use, something easy and reliable beyond Tape backup or any system that requires me to perform an action, or allocate huge amounts of reduced performance time to feed the Tapes, feed the Backup service.. ect.
    I have tried every variation possible and come to the conclusion that at one time Hardware raid made sense on an enterprise level. But never the consumer. The RAID built into the motherboard tends to stay with the motherboard if that dies. Ditto with the
    HBA and its impossible trying to source a compatible HBA a season or two after the latest greatest hardware release. A long term available HBA is going to cost lots of money, because they have no other way to make back the money they could have made by releasing
    more new product, or to pay for the space to store the inventory. Ebay is not a great hardware vendor HBA sourcing plan. Tape backup and any major network backup system are too slow.
    At the same time, BIOS/UEFI being what it is, trusting a bootable volume to RAID between versions from the same manufacturer or differerent manufacturers is fool hardy. There is no incentive for cross vendor bootable RAID support. So plan to burn the bootable
    operating system drive, its expendable. Deliberately move the profile and data regions to either junction points or off to the mirror array. When a drive dies, replace it, when a motherboard dies replace it and reinstall the operating system. When all else
    fails, import the foreign "soft" raid mirror into another operating system.. and with 2003/XP being over 13 years old and still kicking.. that trumps any hardware vendor for longevity. If W7 lasts that long.. or longer.. it will be a good run. W8/2012
    are in their infancy and have a lot of testing to go through in the real world.
    And for offsite replication, static archiving. There is always eSATA and an external drive that could be added to the mirror and subsequently broken. Being natively driven by the operating system I would suspect it would be reliable.. but testing is always
    the best way to shore up belief.
    ' Lists all logical drives on the local computer which are configured for
    ' software RAID. Returns an %ERRORLEVEL% of 1 if any redundant drive is
    ' not in a "Healthy" state. Returns 0 otherwise.
    ' Supports Windows Vista/7, Windows 2008/R2
    Option Explicit
    Dim WshShell, oExec
    Dim RegexParse
    Dim hasError : hasError = 0
    Set WshShell = CreateObject("WScript.Shell")
    Set RegexParse = New RegExp
    ' Execute diskpart
    Set oExec = WshShell.Exec("%comspec% /c echo list volume | diskpart.exe")
    RegexParse.Pattern = "\s\s(Volume\s\d)\s+([A-Z])\s+(.*)\s\s(NTFS|FAT)\s+(Mirror|RAID-5)\s+(\d+)\s+(..)\s\s([A-Za-z]*\s?[A-Za-z]*)(\s\s)*.*"
    While Not oExec.StdOut.AtEndOfStream
    Dim regexMatches
    Dim Volume, Drive, Description, Redundancy, RaidStatus
    Dim CurrentLine : CurrentLine = oExec.StdOut.ReadLine
    Set regexMatches = RegexParse.Execute(CurrentLine)
    If (regexMatches.Count > 0) Then
    Dim match
    Set match = regexMatches(0)
    If match.SubMatches.Count >= 8 Then
    Volume = match.SubMatches(0)
    Drive = match.SubMatches(1)
    Description = Trim(match.SubMatches(2))
    Redundancy = match.SubMatches(4)
    RaidStatus = Trim(match.SubMatches(7))
    End If
    If RaidStatus <> "Healthy" Then
    hasError = 1
    Echo "**WARNING** "
    End If
    Echo "Status of " & Redundancy & " " & Drive & ": (" & Description & ") is """ & RaidStatus & """"
    End If
    Wend
    If (hasError) Then
    Echo ""
    Echo "WARNING: One or more redundant drives are not in a ""Healthy"" state!"
    End If
    'WScript.Quit(hasError)
    -- John Willis

  • Failure Report Generation

    Dear All,
              There is a sales process chain that runs daily that is scheduled to pull data from Oracle directly to BW. Due to wrong Billing document the pull fails at times. How is it possible to generate a mail or a failure report of data pull activity and send it to concerned party when the process chain fails? I have heard of a certain IT mail. Kindly share any info or docs on possible solution.
    Regards,
    Ratish
    [email protected]

    Hi,
    Right click on the process for which u want to send message and in the context message u will have option to CREATE MESSAGE click on that  then you will get option Messages for FAILURE , SUCCESS  and both , then select which option need  crete variantant  and you will get the maintain Recipient list.
    Thanks
    Krishna Reddy.

  • Failure report

    Ok, so I've had this problem in a while now. Here's the deal: When i try to open iTunes (on Windows XP Pro) it says something about sending a failure report. I've tried to re-install it many times, but it still won't open.
    Does anyone have any idea on what to do?
    Thanks in advance.

    Is there an error report number? If so, that is important and you should repost with the number.
    On the other hand, primarily with these kinds of things, it's because Quicktime is malfunctioning. Download the QT standalone to replace your current one here:
    http://www.apple.com/quicktime/download/standalone.html.
    Hope this helped. If not, post back
    rjl

  • Delivery failure report for mail

    Hi,
    I have two queries on mails
    While sending mail to single/multiple users,
    1. Is it possible to get the delivery failure report for the unsent mails and the user to whom it was not posted?
    2.Can the sent mail be posted to the sender's sent mailbox.
    Thanks
    Neha

    Hi Neha,
    1) If you set up an account for xMII on your mail server, then you should be able to use the "Read Mail" action to monitor that account's inbox for any delivery failure reports. You should then be able to parse the format of the message (which depends on your mail server) and retrieve the email address.
    2)  I don't think this can be done because it's something that your email client (e.g. Outlook) normally takes care of and is not supported in the SMTP protocol to my knowledge.
    Hope this helps
    Sascha

  • Application Crashes on Startup: Need Help w/Failure Report

    Adobe Illustrator CS started crashing on application startup. All other apps seem to function normally. The mac OS (10.4.11) generates a failure report, a copy of which can be downloaded at the link below (36kb .pdf file). I was hoping somebody could make sense of the report for me. This is a G4 ppc mac.
    In the fifth line in the report the word MacOSClassic appears. Any relevance to my problem?
    "Path: /Applications/Adobe Illustrator CS/Illustrator CS.app/Contents/MacOSClassic/Illustrator CS"
    http://www.wrenchtech.com/filehost/AICSrpt.pdf
    Message was edited by: RogueOp

    SEE if this is it...
    Adobe TechNote on InDesign/Illustrator CS/CS2 fail to launch after OS X Acrobat 8.2 update
    http://www.xlr8yourmac.com/archives/jan10/012210.html
    http://discussions.apple.com/thread.jspa?messageID=10931933
    http://kb2.adobe.com/cps/534/cpsid_53468.html

  • Raid failure on WAVE 7371

    Hi,
    I am getting Raid failure error on the WAVE 7371. All the disks on the WAVE are online.
    Please advice how to fix this issue.
    RAID Logical drive information:
      raid-disk:    RAID-5  Impacted
                    Enabled   (read-cache) Enabled (write-back)
    Critical Alarms:
            Alarm ID                 Module/Submodule               Instance
       1 raid_failure              sysmon                       raid

    Hi Ameen,
    Please see the troubleshooting wiki here:
    http://docwiki.cisco.com/wiki/Cisco_WAAS_Troubleshooting_Guide_for_Release_4.1.3_and_Later_--_Troubleshooting_Disk_and_Hardware_Problems
    See if you have the most up to date raid firmware.
    Regards,
    Mike

  • Raid failure when connecting ipod

    I have an Asus Striker Extreme motheroboard, and all the lates drivers. Whenever I connect my ipod 8gb nano, I get a Raid Failure, and have to either rebuild my Raid 0+1 or Delete the array and reinstall my system. This is getting to be a pain. Is there a fix for this with a new driver or setting? Nothing else seems to cause the problem on this system, which I've used for 7 months without a problem before.

    hi Holly!
    hmmm. okay, are you getting an "Ipod Service Error" when you click on the Ipod updater, too?
    if so, try toonz's technique, here:
    toonz, "iTunes 5.01: Rending iPods useless Worldwide" #2, 12:01pm Oct 4, 2005 CDT
    keep us posted.
    love, b

  • MSI MPOWER MAX Z87 - RAID failure after BIOS update (settings reset)

    I use the integrated intel RAID controller to create a 2 disk RAID-0 6TB (2x3TB), but everytime I update the BIOS, there is a RAID failure.
    It does not matter if I use Live Update or the Update BIOS+ME option of the BIOS menu. All settings are lost, and after the boot the RAID controller is deactivated due to that. I go to BIOS right after the auto-reboot and re-enter my settings (RAID instead of AHCI), but the intel controller only sees 1 disk as a RAID member. Recovery option is not active when I enter the controller options (control+I). I always need to delete and recreate the RAID, which of course loses all data.
    Very frustrating!
    Am I doing the update wrong? I know I did it once and settings were not reset, my RAID was kept intact, but I believe it was only 1 time of 4 or 5 updates I did to my MPOWER MAX.

    Hi, thanks for trying to help!
    - I use Windows 8.1.
    - My vga does not support UEFI so I use... legacy mode? (I'm not that familiar with BIOS->UEFI yet, sorry.)
    - According to Intel RST, the RAID HDDs are on ports 2 and 3.
    - This time the update was from 1.80 to 1.90.
    1.70 to 1.80 also resulted in the same problem, but I used LiveUpdate.
    For previous updates, I don't remember but I sometimes I used LiveUpdate, sometimes the BIOS feature.
    I'm pretty sure that only once the RAID was kept intact, and I don't remember the versions or method I used, but I believe I used the BIOS method (don't know if needed BIOS+ME or not), not LiveUpdate.

  • Constant Raid failure NB/SB to hot?

    Good evening gents
    I have 2x OCZ vertex 30gb raid-0 in my system and my raid array fails every 1-2 months.. im getting a little bit tired of recovering backups so im trying to find the source of the problem.
    I have a MSI Eclipse SLI motherboard with the buggy NB which sometimes (not often) goes up to 95 degrees (most of the time its around 85 degrees). I already started a topic on the OCZ forums aswell and they say it could be the NB/SB that messes up my raid all the time.
    I have 2 Samsung Spinpoints running in raid-0 wihtout any problems. In my opinion it couldn't be the NB/SB cause once every 1-2 months doesnt seem alot for the NB/SB to be the problem, i think it would occur alot more times if it really was the NB/SB. Putting new cooling on the NB/SB would be my extreme solution cause i have my CPU water cooled and it would take me sometime to take the mobo out again and trying to fix the problem.
    I have my i7 920 running @ 4Ghz 24/2 at max load 60 degrees and is Linx stable (Ran it for multiple hours)
    Do you guys think that the NB/SB is the problem or do you have any suggestions?
    Ps. i have no problems with my PC without those SSD's.
    Thanks in advance :D

    Quote
    Do you guys think that the NB/SB is the problem or do you have any suggestions?
    If it is the IOH, it would be the first actual reported case of trouble. As long as it doesn't go over 95C Tcontrol, data loss or corruption shouldn't take place. Some have run a considerable amount over that & haven't reported any failures or problems. As for the ICH, that could be a problem, but temp wise, they seem to run 'very' cool natively. If you want to add a fan for cooling the IOH, an Antec Spot Cool works well, & it can be mounted probably off of the top right mount point & goosenecked over towards the IOH.
    The details of your system are a little sketchy, like OS, PSU, bios version, AHCI set prior to OS install, etc. I kept losing HDDs randomly on an Eclipse Plus & it turned out to be a faulty PSU +5V rail causing it. 

  • Software RAID Failure - my experience and solution

    I just wanted to share this information with the iCloud community.
    I searched a bit and did not find much information that was useful with regard to my software RAID issue.
    I have 27 inch Mid 2011 iMac with SSD and Hard drive which has been great.
    I added an external hard drive (I think if I mention any brand name the moderator will delete this post) which includes an nice aluminum case with two 3 TB hard drives within it, and it has a big blue light on the front and is connected via Thunderbolt. This unit is about 2 years old and I have it configured in a 3 TB mirrored RAID (RAID 1) via a software RAID configured via Mac OS Disk Utility. 
    I had at one point a minor glitch which was fixed using another piece of software (again if I mention a brand the moderator will delete this post) which is like a 'Harddrive Fighter' or similar type name LOL.   So otherwise that RAID has served me well as a site for my Time Machine back up and Aperture Vault, etc.  (I created a 1.5 TB Sparse bundle for Time Machine so that the backup would not use the entire 3 TBs)
    I recently purchased a second aluminum block of drives, and set that up as a 4 TB RAID 1.
    Each of the two RAIDs are set with the option of “Automatically rebuild RAID mirror sets” checked.
    I put only about 400 gb on the new RAID to let it sit for a ‘burning in period.’
    A few days ago the monitoring software from the vendor who sells the aluminum block of drives told me I had a problem.  One of the drives had “Failed.”   The monitoring software strangely enough does not distinguish the drives so you can figure out which pair had the issue, so I assumed it was the New 8 TB model.  Long story short, it was the older 6 TB model, but that does not matter for this discussion.
    I contacted the vender and this is part of their response.
    “This is an indication that the Disk Utility application in Mac had a momentary problem communicating with the drive mechanism. As a result, it marked that drive as "failed" in the header information. Unfortunately, once this designation is applied to a drive by the OS, the Disk Utility will thereafter refuse to attempt any further operations with that disk until the incorrect "failed" marker is manually cleared off the drive.”
    That did not sound very good to me…..back up killed by a SOFTWARE GLITCH?
    “The solution is to remove the corrupted volume header, and allow the generation of a new one….This command will need to be done for each disk in the array… (using Terminal)…
    diskutil zerodisk (identifier)
    …3. After everything is finished, you should be able to exit Terminal, and go back into the Disk Utility Application to re-configure the RAID array on the device.”
    Furthermore they said.
    “If the Disk Utility has placed a flag into the RAID array header (which exists on both drives) then performing this procedure on a single drive will not correct anything.”
    And…
    “When a drive actually does fail, it typically stops appearing in the Disk Utility application altogether. In that circumstance, it will never be marked "failed" by the Disk Utility, so the header erase operation is not needed.”
    This all sounded like a bad idea to me. And what does the Vendors RAID monitor software say then?  “Disk Really Really FAILED, check for a fire.”
    As I tried to figure out which drive was actually the bad RAID pair I stumbled on a solution.
    First I noted that the OS Disk Utility did NOT show a fault in the RAID. It listed both RAIDS as “Online.’ Thus no rebuilding was needed and it did not begin the rebuild process.
    The Vendors disk monitor software saw some fault, but Mac was still able to read and write to the RAID, both disks in the mirror.  I wrote a folder to the RAID and with various rebooting steps I pulled the “Bad” drive and looked at the “Good” Drive….the folder was there…I put the Bad drive back in and pulled the Good Drive and the folder was there on the “bad” drive.  So it wrote to both drives.  AND THE VENDORS MONITORING SOFTWARE SHOWED THE PREVIOUSLY LABELED ‘BAD’ DRIVE AS ‘GOOD’ AND THE MISSING DRIVE SLOT AS ‘BAD’.
    My stumbled FIX.   I moved a bunch of files off the failed RAID to the new RAID  but before I moved the sparse bundle, a folder of 500 gigs movies and some other really big folders the DISK UTILITY WINDOW (which I still had open) now showed that the RAID had a Defect and began rebuilding the mirror set itself, out of the blue!   I don't know why this happened.  But moving about 1/2 of the data off of it perhaps did something?  Any Ideas?
    This process took a few hours as best I can tell (let it run overnight) and the next day the RAID was fine and the Vendors RAID monitor did not show a fault any longer.
    So, the Vendors RAID monitoring software reporting a “FAILED” drive without any specific error codes to look up.  Perhaps they could have more info for the user on the specific fault?  The support line of the the Vendor said with certainty “the Volume Header is corrupted” and THE ONLY FIX is to completely ZERO THE DRIVE! This was not necessary as it turns out.
    And the stick in the eye to me…..
    “I've also sometimes seen the drives get marked as "failed" by the disk utility due to a shaky connection. In some cases, swapping the ends of the Thunderbolt cable will help with this. Something to try, perhaps, if your problems come back. “
    Ya Right…..
    Mike

    Follow up.
    After going through the Zeroing process and rebuilding the RAID set three times, with various configurations, LaCie finally agreed to repair the unit under warrantee.
    I tried swapping the power supplies and thunderbolt wires, tried taking the drive out of series with the newer big brother of it.  And it still failed after a few days.
    I just wanted to share more of what I learned with regard to rebuilding the RAID sets via the Terminal.  The commands can be typed partially and a help paragraph will come up to give VERY cryptic descriptions of the proper use of the commands.
    First Under terminal you can used the command "diskutil appleRAID list" to list those drives which are in the RAID.  This gives you the ID number for each physical drive. For example:
    AppleRAID sets (1 found)
    ===============================================================================
    Name:                 LaCie RAID 3TB
    Unique ID:            84A93ADF-A7CA-4E5A-B8AE-8B4A8A6960CA
    Type:                 Mirror
    Status:               Online
    Size:                 3.0 TB (3000248991744 Bytes)
    Rebuild:              manual
    Device Node:          disk4
    #  DevNode   UUID                                  Status     Size
    0  disk3s2   D53F6A81-89F1-4FB3-86A9-8808006683C2  Online     3000248991744
    -  disk2s2   E58CA8F5-1D2C-423A-B4BE-FBAA80F85879  Spare      3000248991744
    ===============================================================================
    In my situation with the failed RAID, I had an extra disk in this with the status of Missing/Failed. 
    The command is "diskutil appleRAID remove" and the cryptic help paragraph says:
    Usage:  diskutil appleRAID remove MemberDeviceName|MemberUUID
            RAIDSetVolumePath|RAIDSetDeviceName|RAIDSetUUID
    MemberDeviceName|MemberUUID  is the number listed in the "diskutil appleRAID List" command,  and
    RAIDSetVolumePath|RAIDSetDeviceName|RAIDSetUUID is the Device Node for the RAID which here is /dev/disk4.
    I used this command to remove the third entry (missing/failed), I did not copy the terminal window text on that one, so I cannot show the list of three disks.
    I could not get to remove the disk2s2 disk listed as SPARE, as it gave an error message:
    Michaels-iMac:~ mike_aronis$ diskutil appleraid remove E58CA8F5-1D2C-423A-B4BE-FBAA80F85879 /dev/disk4
    Started RAID operation on disk4 LaCie RAID 3TB
    Removing disk from RAID
    Changing the disk type
    Can't resize the file system on the disk "disk2s2"
    Error: -69827: The partition cannot be resized
    But I was able to remove it using the graphical interface Disk Utility program using the delete key.
    I then rebuilt the RAID set by dragging the second drive back into the RAID set.
    I could not get the command: "diskutil appleRAID update AutoRebuild 1 /dev/disk4" to work, because even though it was trying to execute it HUNG.  I put the two drives into my newer LaCie 2big as my attempt at further trouble shooting the RAID (this was not suggested by LaCie tech), rebuild the RAID and now I am going to leave it setup that way for a few days before I ship it back to just see if the old drives work fine in the new RAID box (thus proving the RAID box is the problem). I tried the AutoRebuild 1 command just now and it gave an error.
    Michaels-iMac:~ mike_aronis$ diskutil appleraid update autorebuild 1 /dev/disk4
    Error updating RAID: Couldn't modify RAID (-69848)
    Michaels-iMac:~ mike_aronis$
    In my haste to rebuild the RAID set for the third or forth time as LaCie led me through the testing this and test that phase, I forgot to click the "Auto Rebuild" option in the Disk Utility program.
    Question for the more experienced:
    As I was working on this issue, I notice that each time I rebooted and did work in the Terminal (with and without the RAID plugged in to the thunderbolt connection) I notice that the list of drives would change and my main boot drive would not stay listed as drive 0!  Some times it would be drive 0, sometimes the RAID would be listed as Drive 0.  It's strange to me...I would have thought the designation for Drive0 and Drive1 would always be my two build in drives (SSD and spinning drive).
    Mike

  • Mirrored RAID:  MediaKit reports block size error

    I am trying to create a 2nd set up backup drives for my photos.  I have two new iomega 2TB drives, which look essentially identical to drives I'm currently using as my primary backups as a mirrored RAID set.
    I can start the process with freshly erased and reformatted drives (with the default mac format, extended, journaled, unencrypted, not case-sensitive).  And after a minute or three, I see
    "MediaKit reports block size error, usually caused by not being a multiple of 512."
    The RAID options are Mirrored RAID, Mac extended journaled, and options settings are default.
    I see several series of posts with complaints about encrypting RAIDs and disk block sizes, but not unencrypted errors.   I actually started out trying to do this with the 2006 MBP running 10.6.8 and got a different error:  "POSIX reports:  the operation couldn't be completed. Operation not permitted."  I wasn't sure whether the 2TB RAID I already have was set up iwth the older or newer computer--it was definitely before I put Lion on this one--so I tried this one and now have a different error.
    Any idea what the problem might be? 

    Update:  I spent some time on the phone with an Apple support RAID expert, and couldn't figure out what the error was; we couldn't bypass it by playing with partitions on the drives, or any of another couple of manuevers that I've already forgotten.  He noted that his own searches were showing a lot of mentions of similar problems but only with Iomega drives, and he was finding the same links I found earlier about problems creating encrypted drives.  Now trying to decide if it's worth throwing more good money after bad for a call with Iomega support, and waiting to see if the iomega forum is at all helpful.

  • Exchange generates failure report emails for Inbox items which haven't attempted to be synced

    Hello,Our ActiveSync client is reporting errors to the user when the user is sent certain types of recurrence invites. If an invite to a meeting is sent from the Outlook Web App to the user, and the user then syncs their Inbox (using our ActiveSync client and the Sync command), instead of receiving the correct email, they will get an email indicating an error:
    From: Microsoft Exchange on Behalf of *user’s name*
    Subject: Synchronization with your WinRT failed for 1 items.
    Body:
    Synchronization with your Winrt failed for 1 items.
    The following items couldn’t be sent to your mobile phone. They haven’t been deleted …
    Item Folder: Inbox
    Item Type: IPM.Schedule.Meeting.Request
    Item Created: *date*
    Item Subject: *subject of missing email*
    (WinRT is the name of our client currently.)
    This occurs consistently when the invite is for a recurring meeting, which occurs on the last day of a month, yearly. (Yearly on the nth day of the month)
    It also seems that after one of these error emails appears, other items start to be added in with it, although this could just be the result on my side from a lot of testing side effects.
    There’s two strange things to note about this error.
    The Exchange server never attempts to even send the items via ActiveSync to our client, so the error does not seem to be caused by our Sync request. I’ve used Fiddler to examine the calls, and we never receive the original message in any form.
    The Windows Mail client (in Windows 8.1), which uses ActiveSync, has no problem Syncing the very same items that are causing the errors to appear. This gives the impression that something can be done to remedy the problem, but I have no idea what.Thanks
    ArchieCoder

    Hello ArchieCoder,
    This is certainly not what I would expect to see. However, I can't say with certainty that it's related to the syncing issue.
    I went back and looked at the Fiddler trace you took from the Windows Mail client. It gets the same FolderSync response. The first three folders in the response look like I expect--Calendar has ServerId 1, Contacts has ServerId 2, and Deleted Items has ServerId
    3. After that, the ServerId value jumps to 11 for the Drafts folder, so it and all of the subsequent folders have a ServerId value that is 7 higher than what I would expect to see.
    What seems especially weird to me is that the Windows Mail client proceeds to issue a Sync request for the list of CollectionIds I reported earlier, despite several of them being absent from the FolderSync response. Furthermore, it looks like the Windows
    Mail client is getting Inbox items that are identified as being in CollectionId 5:
    <?xml version="1.0" encoding="utf-8"?>
    <airsync:Sync xmlns:airsync="AirSync">
       <airsync:Collections>
          <airsync:Collection>
             <airsync:SyncKey>933450273</airsync:SyncKey>
             <airsync:CollectionId>5</airsync:CollectionId>
             <airsync:Status>1</airsync:Status>
             <airsync:Commands>
                <airsync:Add>
                   <airsync:ServerId>5:391</airsync:ServerId>
                   <airsync:ApplicationData>
                      <email:Subject>Canceled: Last day of december</email:Subject>
    I'm really at a loss for what is going on with this. How difficult would it be for you to test this with your client assuming that Inbox is CollectionId 5 instead of the 12 that is returned from the FolderSync? I am afraid we might be focusing too closely
    on this particular aspect of the issue without being sure it could be causing the real problem, so I think it would be good if you can either reproduce the failure syncing CollectionId 5 instead of 12, or show that your client fails in some other way if it
    tries to sync CollectionId 5. A Fiddler trace of the outcome of that test including both the FolderSync response and Sync request/response would be the next logical step here, I think, assuming that that is doable. Please let me know what you think.
    Best regards,
    Matt Weber | Microsoft Open Specifications Team

Maybe you are looking for

  • Veritas volume manager on Solaris 10(X86)

    is it possible to install veritas volume manager on solaris 10 (x86) ?

  • Oracle Forms 11

    When Oracle Forms 11 ?

  • IP address changes when using webmail on my ipad.

    I can sign in to my webmail however whenever I try to send an email or delete emails etc it disconnects me with a message to say "IP address has changed". It means I cannot use my email account successfully when away from home. Any ideas please?

  • I am trying to add music to my slide show and I get this error:

    I am trying to add music to my slide show and I get this error:  The selected file cannot be played because your system does not have the required compressor/decompressor (codec) installed.  I went to the Adobe site and downloaded a codec program, an

  • How to highlight tree item ?

    Hello everybody ! I have a question : how to highlight a tree item on a condition ? (please see the attached vi and the pictures for a clearer explanation of the problem) I am using LabView 2014. Thank you very much ! Solved! Go to Solution. Attachme