What is the Best way to rebuild a RAID10 setup?

Now that I know how to build a RAID10 with diskutil, I tested it for rebuild capability. I checked the rebuild automatically button in the options section of Disk Utility and removed one of the mirror drives to simulate a disk failure. I then inserted a fresh hard drive and the RAID10 did not rebuild.
If I am going to use RAID10 I need to know how to do a rebuild. Has anyone found a good way to rebuild a RAID10 created with diskutil?
Thank you

The gui options have a checkbox (I think) to enable
automatically rebuilding the array. I don't see a
command line equivalent in the man page for diskutil.
This is when you setup the raid...
However, you can look into the 'diskutil
repairMirror' command.
OK - I finally figured this out. When I created a RAID 0/1 where two stripes were mirrored Disk Utility and diskutil were unable to rebuild the RAID in the case of a failed hard drive. You could copy the data off to another set of drives but I could not rebuild a RAID 0/1 with diskutil or Disk Utility.
With a RAID 1/0 setup, rebuilding after a failed hard drive was possible. This setup uses several mirrors that are then striped. In this configuration a rebuild is completed to the individual mirror that has a failure.
I was unable to rebuild using Disk Utility but with diskutil using the command, "diskutil repairMirror raidDisk newDisk" this started the broken mirror rebuilding itself. It seems like the automatic rebuild button is useless in Disk Utility as I could never get it to work.
When you use the repairMirror command the raidDisk is not the RAID 1/0 disk but the failed mirror inside the RAID 1/0.
It takes approximately two hours for the mirror to rebuild using 300GB hard drives and the RAID 1/0 is still available for use during this process. A progress bar is displayed in Disk Utility that shows the progress of the rebuild even when diskutil was actually the initiator of the rebuild. Clicking on the progress bar shows the estimated time left to rebuild.
If you want to be able to rebuild a complex RAID, I would stay with RAID 1/0. Unless you can find a way to rebuild a RAID 0/1 before placing data on it, I think it is a mistake to use that format.

Similar Messages

I am trying to rebuild my iPhoto library and noticed my backup contains aliases (pointers?) and not the actual file. What's the best way to rebuild my library?

I am trying to rebuild my iPhoto library and noticed my backup contains aliases (pointers?) and not the actual file. What's the best way to rebuild my library?
Facts:
In moving to a new iMac, I copied the iPhoto library to an external HDD assuming that I would point the new iMac to the backed up iPhoto Library
All worked fine when I pointed the new library but noticed that some folders contained aliases and not the original file. So when I attempt to open that photo it can't find it because the alias is pointing to another drive.
I do have all original photos from a couple of external HDDs. In the folders titled, "Originals" (from older versions of iPhoto) and "Masters" (from current iPhoto)
I'm thinking I can create a new folder and drop the original files and make that my new iPhoto library. Is there a better way to rebuild my library? I do not want to create any future aliases.
Thanks in advance for any help!

do you have a strongly recommended default "managed" library (the iPhoto preference to "copy imported items to the iPhoto library is in its checked state) or a referenced library - you have unchecked that option?
It sounds like you have a referenced library and are now experiancing one of the very siginificant drawbacks of a referenced library and one of the many reasons they are strongly not recommended
Also note that iPhoto '11 may use alises in the originals folder as part of the upgrade
It is important that we understand exactly what you have and what is not sorking - what error messages you are getting
You must NEVER make any changes of any sort to the structure of content of the iPhoto library - there are no user servicable parts in it -- and you can not rebuild yoru librtary - only iPhoto ir iPhoto Library Manager - http://www.fatcatsoftware.com/iplm/ - can rebuild a library unless you are a SQL programmer and understand the structure that iPhoto uses
LN

What's the best way to monitor VPN connection setup in a mesh?

We have 24 Cisco ASA connected in a mesh using IPsec VPN tunnels. From our hub location we have Sitescope monitoring each firewall and VPN tunnel to that firewall by ping its inside interface. That works great from the hub location and is more of a hub and spoke model but this is a meshed VPN and I need to monitor the other sites. I don't want to put Sitescope servers in all locations nor would I do that. What are people using these days to monitor thier VPN tunnels? How do you know when a location can't talk to another location? Looking to be proactive here and not wait for an office to notify me that a tunnel is down.
Thanks for the help.

Anyone??
Sent from Cisco Technical Support iPhone App

What is the best way to handle .mod files in premiere pro cs4?

I recently got a JVC Everio GZ-MG130u and as I'm sure many of you are aware, it saves footage in the .mod format.
I have googled this and found quite a few different solutions, but I'm just wondering if anything has changed since some of these solutions were posted, or in other words, what is the best way at this current point in time to handle .mod files in premiere pro cs4?
As far as I know, the best thing to do is convert the .mod to .avi and then import it into premiere so it can be edited.. Is there a better way to do it than this? Also, by doing it this way, will I have separate audio and video tracks?
Thanks.

I have just done a bit of reading, here. All of the quotes that follow are from users who have posted in that thread.
It seems that there isn't one solid answer on this subject. The thread that I linked to was started 2 years ago, and replied to just 4 ago, so it's relatively current.
I noticed a couple different interesting statements:
posted by mmontgomery:
In the case of .MOD, you are actually getting a MPEG-2 file. The way
video files work is that there is a codec (COmpressor/DECompressor)
algorithm and a file wrapper (or extension). A JVC .MOD file is a
MPEG-2 encoded file, with a .MOD extension.
You're faced with two
challenges, first the .MOD file type is only recognized and support by a
few applications. I think we covered some of those already. The
interesting thing about wrappers and extensions is that they can be
dealt with in a variety of ways. Sometimes all you need to do to convert
the video file to a compatible video file is to change the extension.
In the case of .MOD files that's not enough. The .MOD wrapper apparently
does a few more things than just bare a unique extension name. It
requires a slightly more complicated method to convert that file. That
is why there is supplied software and that certain third party
applications have .MOD support.
(posted 2 years ago)
This seems to indicate that Ann's solution of simply re-naming the extension is not good enough, unless I am mis-interpreting what she meant.
However, another user said:
posted by futball8:
I edit with Adobe Premiere Pro CS3. All I have to do is simply rename
the .MOD files as .MPG and then import into PP CS3. It takes a small
amount of time to conform the audio, but no file conversion is
necessary. It's a pretty slick workflow and I've never encountered any
problems editing them this way.
(posted 5 months ago)
One can only assume that simply re-naming the extension from .mod to .mpg works in some circumstances, and doesn't work in others. I assume it depends largely on the editing software being used. Perhaps there are still issues that futball8 was simply unaware of or never encountered.
That said, there seems to be a couple of different real solutions to this problem that I have found:
1. Simply use an editing program that supports .mod file format. While pe7 and pe8 supposedly support the .mod format, the following should be noted:
posted by macksgarage:
While Elements 'supports' these files, it is markedly unstable and frequently crashes while using the files, though the application is otherwise reliable. The solution I have arrived at is to repair the container using ffmpeg. (see #3)
(posted 5 months ago)
2. Use a file conversion utility of your choice that will covert .mod to .avi, or another desired format. Import the resulting .avi file into premiere pro cs4.
3. Use FFmpeg. This seems to be the best solution as it does not convert any audio or video:
posted by macksgarae:
If you are not familiar with ffmpeg, it may be a bit of a bear to
learn, but it's not only useful for this, but functions as a video swiss
army knife useful for splicing, muxing/demuxing, and rendering just
about any format into just about any other format.
ffmpeg is an open source project from the linux world, but it has
been ported and is supported on windows. Fetch it here and place it somewhere handy
on your system.
To rewrite the container into a nice, standards compliant .mpg file
that doesn't make applications die, WITHOUT rerendering video or audio
itself, I use this command.
ffmpeg -i INFILE.MOD -acodec copy - vcodec copy OUTFILE.mpg
This not only renames the file, but actually rebuilds the container
around unmodified video and audio data, yielding a file which works much
more stably with Adobe applications, and presumably others as well, as
ffmpeg's open source development goals result in very standards
compliant files.
(posted 5 months ago)
Now, this seems to properly address the issues that can arise from simply renaming .mod to .mpg, as suggested by Ann. So from this point, I assume you can simply import the .mpg into Premiere Pro cs4 (or any other .mpg compliant program) and edit without issue, but it seems like I remember hearing something about Premiere not liking mpegs or something like that, so in that case, maybe it'd be better to skip this and go with option #2. But, it's been awhile since I've touched any NLE, much less premiere pro cs4, so I could be completely wrong and it may have no problems handling mpegs.
All of the things that I've quoted here came from the same thread, so I don't know how accurate any of this is, but the people that have posted these things seem fairly knowledgeable. If someone reads all of this and can confirm or deny any of it, it would be much appreciated.
Option 1 is not really an option for me, because I am sticking with premiere pro cs4 -- I'm not going to get another editor just because it has .mod support. That leaves me with options 2 and 3: Convert to avi, or change the file wrapper/extension properly with FFmpeg and then simply import the resulting .mpg file... Which is better? Or is there yet another solution that I am unaware of that would be even better?

What is the best way to keep your macbook pro in tip top condition. performance wise

What is the best way to keep the performance of a macbook pro in tip top shape. Over the years my computer seems to act like a pc with all of its hicups and lockups.
I am running mountain lion and this computer is approx 2 years old.
Not sure if there is some sort of software that will help with this or is there something else I can do.
Thanks
GAJ

How to maintain a Mac
1. Make redundant backups, keeping at least one off site at all times. One backup is not enough. Don’t back up your backups; all should be made directly from the original data. Don’t rely completely on any single backup method, such as Time Machine. If you get an indication that a backup has failed, don't ignore it.
2. Keep your software up to date. In the App Store or Software Update preference pane (depending on the OS version), you can configure automatic notifications of updates to OS X and other Mac App Store products. Some third-party applications from other sources have a similar feature, if you don’t mind letting them phone home. Otherwise you have to check yourself on a regular basis.
Keeping up to date is especially important for complex software that modifies the operating system, such as device drivers. Before installing any Apple update, you must check that all such modifications that you use are compatible. Incompatibility with third-party software is by far the most common cause of trouble with system updates.
3. Don't install crapware, such as “themes,” "haxies," “add-ons,” “toolbars,” “enhancers," “optimizers,” “accelerators,” "boosters," “extenders,” “cleaners,” "doctors," "tune-ups," “defragmenters,” “firewalls,” "barriers," “guardians,” “defenders,” “protectors,” most “plugins,” commercial "virus scanners,” "disk tools," or "utilities." With very few exceptions, such stuff is useless or worse than useless. Above all, avoid any software that purports to change the look and feel of the user interface.
It's not much of an exaggeration to say that the whole "utility" software industry for the Mac is a fraud on consumers. The most extreme examples are the "CleanMyMac" and “MacKeeper” scams, but there are many others.
As a rule, the only software you should install is that which directly enables you to do the things you use a computer for, and doesn't change the way other software works.
Safari extensions, and perhaps the equivalent for other web browsers, are a partial exception to the above rule. Most are safe, and they're easy to get rid of if they don't work. Some may cause the browser to crash or otherwise malfunction. Some are malicious. Use with caution, and install only well-known extensions from relatively trustworthy sources, such as the Safari Extensions Gallery.
Never install any third-party software unless you know how to uninstall it. Otherwise you may create problems that are very hard to solve. Do not rely on "utilities" such as "AppCleaner" and the like that purport to remove software.
4. Don't install bad, conflicting, or unnecessary fonts. Whenever you install new fonts, use the validation feature of the built-in Font Book application to make sure the fonts aren't defective and don't conflict with each other or with others that you already have. See the built-in help and this support article for instructions. Deactivate or remove fonts that you don't really need to speed up application launching.
5. Avoid malware. Malware is malicious software that circulates on the Internet. This kind of attack on OS X was once so rare that it was hardly a concern, but malware is now increasingly common, and increasingly dangerous.
There is some built-in protection against downloading malware, but you can’t rely on it — the attackers are always at least one day ahead of the defense. You can’t rely on third-party protection either. What you can rely on is common-sense awareness — not paranoia, which only makes you more vulnerable.
Never install software from an untrustworthy or unknown source. If in doubt, do some research. Any website that prompts you to install a “codec” or “plugin” that comes from the same site, or an unknown site, is untrustworthy. Software with a corporate brand, such as Adobe Flash Player, must come directly from the developer's website. No intermediary is acceptable, and don’t trust links unless you know how to parse them. Any file that is automatically downloaded from the web, without your having requested it, should go straight into the Trash. A web page that tells you that your computer has a “virus,” or that anything else is wrong with it, is a scam.
In OS X 10.7.5 or later, downloaded applications and Installer packages that have not been digitally signed by a developer registered with Apple are blocked from loading by default. The block can be overridden, but think carefully before you do so.
Because of recurring security issues in Java, it’s best to disable it in your web browsers, if it’s installed. Few websites have Java content nowadays, so you won’t be missing much. This action is mandatory if you’re running any version of OS X older than 10.6.8 with the latest Java update. Note: Java has nothing to do with JavaScript, despite the similar names. Don't install Java unless you're sure you need it. Most people don't.
6. Don't fill up your boot volume. A common mistake is adding more and more large files to your home folder until you start to get warnings that you're out of space, which may be followed in short order by a boot failure. This is more prone to happen on the newer Macs that come with an internal SSD instead of the traditional hard drive. The drive can be very nearly full before you become aware of the problem.
While it's not true that you should or must keep any particular percentage of space free, you should monitor your storage use and make sure you're not in immediate danger of using it up. According to Apple documentation, you need at least 9 GB of free space on the startup volume for normal operation.
If storage space is running low, use a tool such as OmniDiskSweeper to explore the volume and find out what's taking up the most space. Move seldom-used large files to secondary storage.
7. Relax, don’t do it. Besides the above, no routine maintenance is necessary or beneficial for the vast majority of users; specifically not “cleaning caches,” “zapping the PRAM,” "resetting the SMC," “rebuilding the directory,” "defragmenting the drive," “running periodic scripts,” “dumping logs,” "deleting temp files," “scanning for viruses,” "purging memory," "checking for bad blocks," "testing the hardware," or “repairing permissions.” Such measures are either completely pointless or are useful only for solving problems, not for prevention.
To use a Mac effectively, you have to free yourself from the Windows mindset that every computer needs regular downtime maintenance such as "defragging" and "registry cleaning." Those concepts do not apply to the Mac platform. A computing device is not something you should have to think about very much. It should be an almost transparent medium through which you communicate, work, and play. If you want a machine that is always whining for your attention like a neurotic dog, use a PC.
The very height of futility is running an expensive third-party application called “Disk Warrior” when nothing is wrong, or even when something is wrong and you have backups, which you must have. Disk Warrior is a data-salvage tool, not a maintenance tool, and you will never need it if your backups are adequate. Don’t waste money on it or anything like it.

What is the best way to find a file on the servers disk without using web.xml?

          What is the best way to find a file on the servers disk without using web.xml?
          I want to find a configuration file not contained within the war file I have
          created. Is there a way to pass information into the ServletContext with out
          rebuilding the ear or war files? Tomcat 4.0 can do this in its server configuration
          files. Does BEA have the equivalent?
          Regards,
          Eric


You can specify the path to the file as a system property
          eg
          java -Dconfig.file.location=./mydirecotry/myfile.txt com.test.MyApp
          "Eric White" <[email protected]> wrote in message
          news:[email protected]..
          >
          > What is the best way to find a file on the servers disk without using
          web.xml?
          > I want to find a configuration file not contained within the war file I
          have
          > created. Is there a way to pass information into the ServletContext with
          out
          > rebuilding the ear or war files? Tomcat 4.0 can do this in its server
          configuration
          > files. Does BEA have the equivalent?
          >
          > Regards,
          > Eric

What is the best way to operate 2 separate iphones on one computer

HI - HELP PLEASE.....
My wife has an iphone and an itunes account registered on her computer - i have just bought an iphone and i want to register it to the same computer, create and itunes account, but we want to keep out apps & music ect seperate - what is the best way of doing this? Thanks.
rb999

The best way is a matter of personal taste. The Apple support document How to use multiple iPods with one computer suggests a number of ways, each with their own pros & cons. For instance if you generally share one profile on the computer already, creating another just to support a different iTunes library may be inconvenient. Switching libraries within the same profile ought to be as easy as opening two different documents, but it isn't. If you have some cross over in your taste for music and apps you may find a shared library is actually easier to manage.
We don't have two iPhones in the family as yet but as I understand it each device can have separate settings for syncing calendars and contacts. For example my iPhone syncs these over the air with the Exchange server at work so if/when my wife gets an iPhone it would be easy to have hers sync to our computer.
If you go down the shared library route you can make sure your apps don't inadvertently merge by turning off Automatically sync new apps from the apps tab when you connect your device.
For media I use the sync with selected playlists method with a slight twist. Rather than regular playlists I set the grouping field to indicate which users should receive which tracks and create smart playlists based on the content of this field.
e.g.
"Alice's Tracks" is "Grouping contains Alice" + "Kind contains audio"
"Bob's Videos" is "Grouping contains Bob" + "Kind does not contain audio"
Tracks that both Alice & Bob want on their iPods have the grouping set to "Alice/Bob"
etc.
I currently manage our family's five iDevices using this system, each getting a different selection to suit their tastes and the capacity of their device. An advantage of using the grouping field is that it is stored in file tags (for non-wav audio files anyway) so that it is relatively easy to recreate the playlists should the iTunes library get trashed and need rebuilding. Also useful if you move files about manually as playlist membership is preserved when you delete & re-import the tracks.
tt2

What is the best way to migrate PSE6 Catalog (Wxp) to new computer W7, PSE11?

What is the best way to migrate PSE6 Catalog (Wxp) to new computer W7, PSE11? Previous PSE6 recovery (Wxp) after a failed HD resulted in pictures showing but not opening due to connection issues. Had to restore pictures from backup and rebuild the catalog and albums. Found a third party fix afterwards that has no support past PSE8. Trying to make this migration to PSE11 painless.

William47 wrote:
What is the best way to migrate PSE6 Catalog (Wxp) to new computer W7, PSE11? Previous PSE6 recovery (Wxp) after a failed HD resulted in pictures showing but not opening due to connection issues. Had to restore pictures from backup and rebuild the catalog and albums. Found a third party fix afterwards that has no support past PSE8. Trying to make this migration to PSE11 painless.
That's a very common and classical situation :
http://helpx.adobe.com/photoshop-elements/kb/backup-restore-move-catalog-photoshop.html
Just make sure that your backup to the external drive is ok : you should find a 'backup.tly' file in the folder.
Use the PSE11 organizer to restore from the PSE7 backup : the first step restores all your media files, the second automatically does a catalog conversion to the PSE11 format.
Read the note in the above link about restoring from XP to ulterior Win OS. You can also restore to a 'custom' location. For instance in a 'C:\My new library' folder. Make sure that master folder is accessible to all users, and if you want, you can move the catalog (database) itself from that location to the default location : catalog manager, option to move catalogs to location accessible to all users.

What's the best way to reorganize table or tablespace?

Hi,
I have a db of Oracle 9ir2, and it works 24*7.
So I can't shut it down to do reorganization.
I have known some ways to do, like exp/imp, CTAS, alter table move ...etc.
Anybody can tell me what is the best way to do reorganization online.
And what advantages and disvantages in that ways.
Thanks & regards

every approch as its pros and cons.
For an example, exp/imp, you need to take the export, drop the schema, create schema with all required privileages and then import.
CATS, generats a lot of redo, and then, you need to re-create their intigrity constraints and other stuff.
alter table move.. also generates a lot of redo, apart from them, you need to rebuild indexes.
I have the same situation in office and I do the third option, which is alter table move. I wrote my own scrit as following description.
In first loop I move a single and then, in the inner loop, I rebuild all indexes of this table, so that other tables are accessable and then so on. I have had no problems.
If you want this script mail me @ [email protected], I will send you the script.
Jaffar

I've had it with Motion 5. What's the best way to reinstall Motion 4?

Not exactly sure why I paid £30 for Motion 5 when it's basically a downgrade from 4. It crashes all the time especially when I open the font list and also when I go to export a movie. Doesn't remember the right fonts for saved projects! Won't let you create your own custom layout. Vector images keep being cropped in a project I'm doing at the moment even though I've unchecked the fixed resolution box and they are all in 3D layers?
So, what is the best way of reinstalling Motion 4?
Thanks

You should never have uninstalled Motion 4. They'll both live on the same system. In fact, Motion 5's install puts all of your Final Cut Studio apps into a folder called "Final Cut Studio", it doesn't delete or overwrite it.
If you're having those problems, there's issues with your system, not Motion. Run Disk Utility and Repair all disks. May need to run Disk Warrior and rebuild the directories of all of your disks.
Verify your graphics card supports Motion 5, you have plenty of RAM, and your drives are fast enough.

What is the best way to install qmail?

I'm about to rebuild my server and want qmail on it. What is the best way to install it?
In the past I've used http://qmailrocks.com/ but I've also looked at http://lifewithqmail.com/.
The problem I found with qmailrocks was that because it doesn't come from packages I have to remember to keep it up-to-date and I rarely remember.
There is the package in AUR, can anyone comment on the stability of it and how easy it is to get running after it has been installed?

myimagination's Mac OS Lion FAQ.
https://discussions.apple.com/message/15733040#15733040
Topics covered in the FAQ.
0. Cautions / Before Upgrading.
1. Apple UpToDate Program.
2. How many Macs?
3. Re-downloading from App Store?
4. Reinstalling Lion. (clean install)
5. Making a Lion DVD.
6. Java
(will be updated)

What is the best way to set up iTunes on our home network so all family members have access to all of our itunes library, even music we don't have on the cloud?

I have five different people using 10 different apple devices on one itunes account in our family. We have had trouble sharing. What is the best way to set up itunes on our home network? We have purchased music that sits on icloud, but we also have music we have imported from our previous cd library. Our itunes program keeps crashing and dumping everyone's playlists. So far we have all been using just the one desktop computer to sync to because we can't figure out how to share the same librarly and playlists on multiple computers in our home so devices can be synced at any location as well as playlists and purchases be made.

What is the best way to set up itunes on our home network?
One iTunes library per person. One iTunes account per person.
If people wish to share songs, they can make copies.
When the inevitable day comes when the kids get older, you will not have to come back here and post asking how all that stuff can get separated!

HT1349 I lost/had my iPhone stolen. Tried using Find My iPhone and it's offline. It was set up. What do I do now? Do I report it stolen? What is the best way in getting back my iPhone if any? Thank you in advance.

Tried using Find My iPhone and it's offline. It (Find my iPhone) was set up. What do I do now? Do I report it stolen? What is the best way in getting back my iPhone if any? Thank you in advance.

Find My iPhone is good for misplaced iPhone but not good for thief and it was never meant to be.
You chance of getting it back is very small.
There are a few things you can try.
Try remote lock/wipe your iPhone through Find My iPhone.
https://www.icloud.com
You can report to the police, cell carrier (expensive cell charges for international calls, roaming etc)
Change all the passwords used in iPhone: Apple ID, E-mail, Bank Account ....
http://support.apple.com/kb/HT2526

What is the best way to read and manipulate large data in excel files and show them in Sharepoint

Hi ,
I have a large excel file that has 700,000 records in it. The excel file has a few columns that change every day.
What is the best way to read the data form the excel file in fastest and most efficient way.
2 nd Problem,
I have one excel file that has many rows each row contain some data that has certain keywords.
What I want is to segregate the data of rows into respective sheets(tabs ) in the workbook.
for example in rows have following data
1. Alfa
2beta
3 gama
4beta
5gama
6gama
7alfa
in excel
I want there to be 3 tabs now with each of the key words alfa beta and gamma.

Hi,
I don't really see any better options for SharePoint. SharePoint use other production called 'Office Web App' to allow users to view/edit Microsoft Office documents (word, excel etc.). But the web version of excel doesn't support that much records as well
as there's size limitations (probably the default max size is 10MB).
Regarding second problem, I think you need some custom solutions (like a SharePoint timer job/webpart ) to read and present data.
However, if you can reduce the excel file records to something near 16k (which is supported rows in web version of excel) then you can use SharePoint Excel service to refresh data automatically in the excel file in SharePoint from some external sources.
Thanks,
Sohel Rana
http://ranaictiu-technicalblog.blogspot.com

Custom Report : What is the best way ?

Hi!
My customer doesn't like native TestStand 's report layout. He would prefer something like the example enclosed to this post.
What is the best way to achieve this ?
XSL customizing (seems heavy work) ?
Using the report generation toolkit and a Word template ?
Any other idea ?
Attachments:
Report Style.JPG ‏115 KB

Have you examined all of the examples found in the TestStand help:

What is the Best way to rebuild a RAID10 setup?

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