How to simulate disk failure in ldom?

Hi there,
we want to simulate a disk failure in an ldom running solaris 10.
The control domain has physical fc-attached disks that are exported to the ldoms as vdisks.
ldm rm-vdisk -f does not work:
Failed to remove vdisk instance
The -f option has no effect because the device cannot be removed safely
Is there another way to "steal" the disk from the running ldom?
Regards
Tony

I would make it invisible on the storage.
Which result do you expect?
Using ZFS? Your system probably freezes, because zpool default failmode is `wait`.
Best regards,
Marcel

Similar Messages

How ASM Manages Disk Failures

Hi,
Was going through Oracle ASM document and came across this topic, need some clarification on this please.
"The disks are first taken offline and then automatically dropped. In this case, the disk group remains mounted and serviceable. In addition, because of mirroring, all of the disk group data remains accessible. After the disk drop operation, Oracle ASM performs a rebalance to restore full redundancy for the data on the failed disks". -- What does this mean?
Thanks

Simple example.
Single normal redundancy diskgroup DATA1 with 2 failgroups called MIRROR1 and MIRROR2. Each failgroup has 3 x disks (let's say 512GB).
Disk 2 in failgroup MIRROR1 fails. The MIRROR1 failgroup is not available as a result. DB operations continue unaware of the problem as MIRROR2 is online and working fine.
The dba cannot fix disk 2 within the meantime for repair period of ASM. ASM forces disk 2 out the MIRROR1 failgroup by force dropping it. MIRROR1 has now 2 disk remaining.
ASM starts a rebalance process to stripe the contents of the MIRROR1 failgroup across 2 disks - as oppose to 3 disks. If the space in use fits on 2 disks the rebalance operation will succeed. MIRROR1 will become online and available. But it will only be able to carry 1TB of data, as oppose to MIRROR2 with it 3 disks and 1.5TB capacity.
If the space used cannot be striped across the remaining disks in MIRROR1, the rebalance will fail due to insufficient capacity and the failgroup will remain offline.
In either scenario, the recommended action is to add a new 512GB disk to MIRROR1, reverting it back to a 3 disk failgroup, and then rebalance the failgroup.

Hard disk failure, replaced; how to get songs from iPod back into iTunes

Hard disk failure, replaced with new hard drive etc;
How do I get all songs from iPod back into iTunes?
(mix of CD sourced and iTunes shop sourced)

I can't believe there's no answer to this. Apple wants to charge customers for support but this has got to be happening thousands of times a day what with Windows OS reinstalls being what they are-numerous! Please let me know if/when you get a reply, thx!

A10 Hard disk failure and replacement - How do I use Recovery Disks?

I have a Satellite Pro A10 which has suffered a hard disk failure. I have replaced the hard disk drive (with a non-toshiba drive) but cannot load the operating sysytem etc from the recovery disks supplied with the computer when new. When starting the computer up with recovery disk No 1 in the CD drive I get the message "Invalid system disk, Replace the disk and then press any key" Any suggestions as to the remedy would be most welcome.

Hello Tony
Please check at first if your new HDD is properly recognized by BIOS. It yes you should prepare the HDD for installation. I recommend you to use some tool and make a partition on new HDD. If you want you can format it before you start the installations procedure.
I am pretty sure that after that the recovery installation can be done successfully.
Bye

How to calculate the disk failure level for a 3-way mirror pool?

On another post in this forum, the following information regarding a 3-way mirroring storage pool is given:
Pool requires a quorum of 50% plus drives to be present to survive.
with 3 way mirror - we have a guarantee of surviving 2 disk failure.
Maintaining the above requirements and providing the guarantee -
mandates us to have minimum 5 disks in pool. As if we loose 2, we still
have 3 in the pool (>50%) for pool to maintain it's quorum.
Just to be sure, I would like Microsoft to confirm that the following calculation applies to any number of disks in a 3-way mirroring pool.
If the number of disks in a 3-way mirroring pool is n, INT(n/2) disks can fail without data loss.
Examples:
With 5 disks, INT(5/2)=INT(2.5)=2 disks can fail.
With 6 disks, INT(6/2)=INT(3)=3 disks can fail.
With 9 disks, INT(9/2)=INT(4.5)=4 disks can fail.
Am I right in this assumption?
Thanks for your answer.

Hi,
>>Am I right in this assumption?
Based on my understanding, it’s not this case.
Mirror spaces are designed for increased performance and protect your files from drive failure by keeping more than one copy. Two-way mirror spaces make two copies of your
files and can tolerate one drive failure, while three-way mirror spaces can tolerate two drive failures.
Regarding this point, the following thread can be referred to for better understanding.
Storage Spaces - Disk resiliency
http://social.technet.microsoft.com/Forums/en-US/8f13ecf3-61c8-4505-90da-e8a01023c62d/storage-spaces-disk-resiliency?forum=winserverfiles
In addition, regarding storage spaces, the following article can be referred to for more information.
Storage Spaces Overview
http://social.technet.microsoft.com/wiki/contents/articles/15198.storage-spaces-overview.aspx
Best regards,
Frank Shen

Toshiba Satellite L650-07U, Hard disk failure and replacement

Hi all,
I have Toshiba Satellite L650-07U Laptop, Model: PSK1EC-0700Q with 4GB RAM, 650GB HD, Windows 7 Home Premium installed. At the time of first use, i made Recovery DVDs which took 4 blank DVDs using Recovery media creator.
From 2 weeks it is giving problem, at start its slowdown with every application, then suddenly it started Hard disk failure error and ask to backup important files. From that instant i did all my backup save in another portable Hard drive.
I had hiren boot CD, and ran RAM test and found it OK, and then run Hard Disk test and found few bad sectors at few certain point, As 650GB Hard disk was taking alot time of time for checking bad sectors, so i stopped that application.
First I tried Recovery DVDs to restore Windows, but it failed as Laptop DVD-Writer was unable to boot from those created DVDs (DVDs are OK as had checked it on Desktop computer DVD-ROM), Laptop DVD-Writer is also working as I test few more bootable CDs and it booted perfectly, but it is not booting from Recovery DVDs.
Than i tried to restore from Recovery partition using Factory restore settings, it erases all data and reinstall new and fresh copy of Windows 7 Home Premium. It works fine for few hours than again pops up Hard Disk Failure message again and again. I searched here in Toshiba Forum and have found similar problem with other members and finally decided that it need to replace Hard Disk with new one. As It is now two and a half month old, thats why i need to buy new Hard Disk for my Laptop.
I checked all partitions of drive using Hiren Boot CD, and had found that there are four default partitions in Toshiba original laptop drive,
One hidden partition of 1.5 GB
One hidden partition of almost 21 GB
One hidden partition of almost 12 GB
One partition of 561 GB, which was the original partition where windows 7 was installed along with all of my Data.
Now I want to replace faulty drive with a new one and have a lot of question in my mind which I need to share with you guys.
At the time of first use I installed Windows 7 64 bit edition, and made Recovery DVDs, and at second time of restore to factory setting I had installed Windows 7 32 bit. I have confusion about recovery DVDs (which is not booting from default DVD-Writer of Laptop), either it has 64 Bit recovery data or 32 bit? Or have both 64 and 32 bit Data.
Toshiba restore to factory setting without using any recovery DVD/USB is the best possible way to restore Windows 7, How can I make same recover hidden partitions from original/faulty hard drives to new hard drive partitions? Is this possible and how?
On Default hard drive there was one partition of 561GB instead of two or more partitions. Is this possible to split partitions in new hard drives instead of one big partition?
As Recovery DVDs are not able to boot from laptop default DVD-Writer, is it possible to open those DVDs on another System and copy tem in USB drive and use it for booting? If it is possible than please show me the steps for making bootable USB from these Recovery DVDs.
Thanks,
masterleous
Solved!
Go to Solution.

Satellite L650-07U (PSK1EC-07U00Q)
This site is for US computers. I doubt you'll get your questions for that Canadian model answered here.
There appear to be two recovery partitions. Maybe one for 32- and one for 64-bit Windows. Or maybe one is for English and the other for French.
Your User's Manual isn't much help either. You probably need to ask Toshiba tech support in Canada.
About all I have to offer is this: Be wary of drives with advanced-format technology. See my message about that.
-Jerry

Music Files Deleted After Hard Disk Failure and First Sync After Hard Disk

Hi,
I recently had a hard disk failure and lost all of the data on my hard drive. I replaced the hard drive and reinstalled all of the software including iTunes. I am running Windows XP Home. The first time I plugged my iPod Nano into my computer after the hard drive replacement it synced to iTunes and since iTunes had no music files it deleted all of the music files on my Nano. How do I get them back and why on earth would iTunes do such a stupid thing??? My Nano contained many songs that I bought from iTunes and I want to get them back. I have found some third party software that will undelete the deleted files but it costs $69. I don't feel that I should have to pay to correct a defective feature in iTunes. Does Apple have an undelete utility? Can I redownload the songs that I purchased from iTunes?

*The first time I plugged my iPod Nano into my computer after the hard drive replacement it synced to iTunes*
When you connected did you get a message that your iPod was linked to another library, and then press Erase and Sync? When an iPod is set to update automatically and you connect to a computer with an empty iTunes and accept the message above it will erase the originals completely (as you have discovered). Also as you've seen, none of the recovery programs are particularly cheap so you have to decide if in your particular circumstances it's worth it to get your songs back. It may be if you have a lot of purchased tracks which you will have to pay to download again. If they came primarily from your CDs then it's most likely not as you can re-rip them.
*Can I redownload the songs that I purchased from iTunes?*
If you didn't make a back-up of your purchases to restore from then I'm sorry to say that the policy on lost purchases is that you have to pay to download them again:
"Once a Product is purchased and you receive the Product, it is your responsibility not to lose, destroy, or damage the Product, and Apple shall be without liability to you in the event of any loss, destruction, or damage." iTunes Store: Purchased content can be downloaded only once
You could try contacting the iTunes Music Store Customer Service and you might be able to persuade them to sanction a second free download. There have been occasional reports in the iTunes forum of this happening, however just be aware that they are not under any obligation to do so. If you click on any of the links on this page you'll find a space at the bottom to email your query: iTMS Customer Service

Hard disk failure imminent

I have a Pavilion 1400-Z desktop. It was purchased last November. I have only had it for 2 months. Now everytime it reboots I get an error message about an imminent hard disk failure. It says in a message after I login that the hard disks reporting failure are volumes C:\,D:\
These are both partitions set up in single 500gb drive that were set up as part of the factory install.
Is there anything that can be done other than replacing this hard drive?
Obviously it is still under warranty. If replacement is the only solution, how do I go about getting the process started. I've barely gotten to use my new computer and it is already failing.
Failing Drive SATAO
Failing Attributer: #05
I am very disappointed that I continue to have hardware problems with factory installed HP components.

Since your computer is still under warranty, your best bet is to contact HP Customer Support and start the troubleshooting / repair process.
Please send KUDOs
Frank
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Hard disk failure HP G7000 laptop

Hi,
I'm getting hard disk failure on a HP G7000 laptop. The machine boots fine from DVD drive using a Linux boot disk.
Vista installed on machine.
No recovery disk was created when machine was first bought and any disks provided with the machine when bought can't be found.
The Vista licence tag is on the base of the machine so I have a licence key for Vista.
1. What type of hard drive do I buy as replacement? SATA 2.5 inch?
2. Can I use any Microsoft Vista install disk and type in the licence key on the base of the machine?
Thanks
Clive

Hi,
The failure ID will either be a Smart or Disk Self Test failure - both would indicate that your Hard Drive is failing and will need to be replaced.
If your notebook is still under warranty, contact HP and arrange to have the drive replaced. Or incase your unit OOW you can purchase a New Hard drive.
Let us know how it goes!
"I work for HP."
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HARD DISK FAILURE IS IMMINENT

Product Name: HP Pavilion p6390d
OS: Windows 7 32 - bit
Error Message: Hard Disk Failure is Imminent
Things I did before having this error:
I reformatted my computer to erase an error from my program (specifically: solidworks) since it has conflicts regarding on 2 versions i installed and 1 of which has lost some of its files and i dont know how it got lost and so i resorted to reformatting.
I did the normal formatting process, like format my hard disk and i followed the process neatly. I got a success on my formatting, then i installed my microsoft office and other important stuff needed for my work. A couple of hours passed it seems to give me an error on HARD DISK FAILURE. Which i thought was just an error maybe on my formatting so what i did was press the ASK ME AGAIN LATER button since i had already backed up my files. So i reformatted it once again hoping the error would leave but i notice the moment i booted the windows 7 32 bit installer i seem to have this error on my boot screen (BELOW IMAGE). And then after a couple of minutes the lagging would come but i still managed to put this THREAD up here and hoping someone would give me a solution on what to do or suggestions on buying something. Please feel free to SUGGEST anything like buying a new hard disk or something. I'll be waiting on your reply 24/7. Thanks
Additional Information:
After my first format i installed AVG on my desktop just to stop small viruses that might affect my computer. I scanned it. and then afterwards i tried their new added feature which was PC TUNE UP, REGISTRY CLEANER and i used their program since they were the ones who detected that there are errors in my registry and other stuff (I still didn't have the HARD DISK ERROR at this time) and so i successfully downloaded the software and use it. and so i uninstalled the program since it was only a trial and can only be used 1 time. After sometime i seem to receive the message. And so my story goes on.(part where i reformatted my computer again)
This question was solved.
View Solution.

Derek, welcome to the forum.
The hard drive has S.M.A.R.T. technology. This tests your hard drive for possible failure. In your case, it appears that your drive is ready to fail. I suggest buying a new drive.
Please click "Accept as Solution" if your problem is solved.
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Hard Disk Failure, No Backup, OUCH!

I have suffered a fatal hard disk failure on one of my drives and I had to buy a new disk. Due to the nature of the striping RAID-0 array I use the other disk is rendered useless and I lost everything. Must reformat and reload software which is a lot of work but is at least possible. That operation is ongoing as we speak. It's the lost data that really hurts. Lesson learned. Conduct regular backups. "OK ComputerGods, I hear you now...I repent."
Here's my problem for this forum. I had roughly 2,500 songs on my iTunes which were ripped from my own CDs. The ripping operation took a lot of time and energy to do. Like I said I don't have a computer backup of those songs. I still have the CDs of course but I would like to avoid spending all that time and effort ripping again. I need to move my iTunes account to the new disk anyway and I'm not sure exactly how to procede and more importantly I have no idea how to retrieve the (ripped) songs from my iPod and get them back onto the new disk. I already know that I can simply reload the music I bought on iTunes. That's not the issue. It's the 2,500 or so songs I ripped that I don't want to lose.
So my questions are:
1) How to move iTunes account to (basically a new machine) without starting from scratch?
2) How to salvage the ripped music I already have on my iPod and get it back onto my computer?

*How to salvage the ripped music I already have on my iPod and get it back onto my computer?*
iTunes has an option to copy your iTunes Store purchases directly from an iPod to the computer, you'll find details in this article: Copying iTunes Store purchases from your iPod or iPhone to a computer
For everything else (music from CDs, other downloads etc) there are a number of third party utilities that you can use to retrieve the music files and playlists from your iPod. You'll find that they have varying degrees of functionality and some will transfer movies, videos, photos, podcasts and games as well. You can read reviews and comparisons of some of them here:
iTunes & iPod software
Wired News - Rescue Your Stranded Tunes
Comparison of iPod managers
A selection of iPod to iTunes utilities:
TuneJack Windows Only (iPhone and iPod Touch compatible)
SharePod Windows Only (iPhone and iPod Touch compatible)
iPod2PC Windows Only
iDump Windows Only
YamiPod Mac and Windows
iPod Music Liberator Mac & Windows
Floola Mac & Windows
iPodRip Mac & Windows (iPhone and iPod Touch compatible)
iPod Music Liberator Mac & Windows (iPhone and iPod Touch compatible)
Music Rescue Mac & Windows (iPhone and iPod Touch compatible)
iGadget Mac & Windows (iPhone and iPod Touch compatible)
iRepo Mac & Windows (iPhone and iPod Touch compatible)
iPod Access Mac & Windows (iPhone and iPod Touch compatible)
TouchCopy Mac & Windows (iPhone and iPod Touch compatible)
There's also a manual method of copying songs from your iPod to a Mac or PC. The procedure is a bit involved and won't recover playlists but if you're interested it's available on page 2 at this link: Copying Content from your iPod to your Computer - The Definitive Guide

Disk failure and no Time Machine backup

Hi, I had hard disk failure on my iMac and I don't have Time Machine or any other backup.
By press 'Option' key, I may access Disk Utility, but failed if trying to verify or repair disk (see photo), and it asked me to '...Backup as many of your files as possible...'
I also tried to 'Reinstall OS X' via Internet, but the Mac seems getting frozen (spinning beachball) at 'Loading Installation Information' (see photo)
Could anyone please tell me how to '...Backup as many of your files as possible...'???
Do I have to disassemble iMac and pull the hard disk out......?
Thanks

Removal of the disk drive sounds like your only hope of recovery any data
You are probably going to need recovery software because it sounds like the directory is totally corrupted.
You can find information about a bunch of them at http://mac-data-recovery-software.esoftreviews.com
If the recovery software is not able to recovery enough of your data, there are services that can do that for you. But expect to pay big bucks for that, think like $$$$.
You are going to implement a backup plan after this episode?

Hard disk failure - what does mean following error: failure ID 9cw77a-5km5t8-xd002k-60s903?

Hi,
Since 6 months I have HP Pavilion dv6 3180ec, running Win7 64-bit.
Recently the notebook restarted itself several times during last couple of days with a hard disk failure message (blue screen); after restart, a Hard disk diagnosis was requested however never properly started... So I run the test from BIOS and got following error message:
Hard disk test failed
Failure ID: 9CW77A-5KM5T8-XD002K-60S903
(interesting is that the SMART test passed successfully)
Does anybody knows, how severe the failure is? Is the change of HDD necessary? I would like to avoid the situation to send it to HP customer service for warranty check and have no notebook for a month, as the guys will not experience the same problem (actually even I am now writing the post on that notebook - and without any restart...)
THX
F.
This question was solved.
View Solution.

Hi,
If not a SMART error, this will either be a failure of the short or long Disk Self Test and really would indicate the drive should be replaced. There is no need to have to send the notebook in, as if you contact HP to arrange for a new HDD to be supplied to you under warranty, the drive will be sent out to you - you normally have to pay a deposit which is refunded when you return the defective HDD.
If you live in the US, contact HP Here.
If you are in another part of the world, start Here.
The procedure for replacing the HDD is shown starting on Page 55 of your Maintenance & Service Guide.
Regards,
DP-K
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Hard disk failure and warranty

I bought my Macbook in September '07, without the extended Apple Care warranty. My hard disk recently failed--after the computer shut itself off while attempting to wake from sleep while the DVD player was open and paused. (This particular sequence had happened before, without the subsequent hard disk failure.) Now I boot from my firewire backup, and disk utility and even the OSX install disk cannot find the internal drive. Instead I just hear this sound like a limping bird from that corner of the case.
At any rate, since my computer as a whole is outside the 1-yr warranty by now, I wanted to ask--can individual parts carry their own warranty, as well? Because this Macbook is still only lightly used, and it seems silly to suffer such a fate so soon.

Early hard drive failures tend to be random in nature. Of course older hard drives tend to suffer exponentially higher failure rates as the parts wear. I've had little used hard drives crash after less than 6 months. It just happens.
Unfortunately for you, the warranty isn't based on amount of use, but time from the date of purchase. Still - the cost of aftermarket replacement drives is so low that you could probably just purchase a new one at an almost nominal cost. You could by an equivalent replacement for about $60. You've already got the backup, so cloning it back to the new drive should be something you already know how to do.

What is the correct way to restore the catalog after a disk failure?

I am running the latest Itunes on Vista. The disk failed on my old computer and I have a backup of the catalog file. The music files are on external storage (NAS). I've been searching for instructions on how to restore Itunes.
The catalog is about 1 week out of sync with the music files because I added some music in between backups of the catalog file and the disk failure.
In a perfect world, I'd like to restore the catalog with playlists and the album art.
Are there instructions to accomplish this or do I need to rebuild the catalog from the music files and recode my playlists?

Firstly I don’t have a NAS drive so what I say applies to and external HD, but it should be similar.
When you say catalogue file, I guess you mean the iTunes database files – iTunes Library.itl and iTunes Music Library.xml. The xml file is just used to allow other programs access to the library but can be useful because you can rebuild the itl file from it.
If you want your art work, you need a folder in the iTunes folder called Album Artwork.
So ideally you would like to be able to recover your old iTunes folder from backup.
If I understand you correctly, you had all your music on a NAS drive and the library files on your internal drive. Were all the music files/folders located the iTunes Music folder on the NAS drive? I will assume you have, it is much harder to get things working if they were not.
I guess you now have your NAS drive mapped into your new computer so you can see it as a drive letter.
So I hope this will work for you…
With iTunes closed, drag the iTunes folder from it’s current location to your desktop. I think the iTunes folder is in Music in Vista.
Now copy your backup iTunes folder into Music.
Now start iTunes and got to Edit>Preferences>Advanced>General and set the location of your iTunes Music folder to your folder on the NAS drive.
If you can see your music as it was when you did the backup, you can use Add Folder to Library to add the folder containing your music. Don’t worry, this shouldn’t create duplicates but it will add any tracks not currently in your library.
If you don’t have the iTunes folder, the procedure is similar except that instead of dragging the whole iTunes folder out to the desk top, just drag iTunes Library.itl and replace it with the backup. You won’t get your artwork if you just do this.

How to simulate disk failure in ldom?

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