Is It Possible to Clone RAID Array in a Safe and Easy Way?

Why do computer users need to clone RAID array, especially Windows Server users need to do RAID cloning? Generally speaking, they need to clone RAID array regularly in order to upgrade disk or migrate data from small disk to a larger one. A typical
example is that when the partitions on the hardware RAID runs out of space, you may prefer to rebuild the hardware RAID with larger hard disks. Then, you need to backup the data to another place, rebuild the hardware RAID and restore data again.
What a time-consuming task!
Is it possible to clone RAID array in a safe and easy way? The answer is yes and this article will introduce a RAID cloning software.

Hi jiangchunli,
Were you looking to post this question in some other forum? This looks like related to RAID and Disk upgrades.
This forum is meant for
http://www.windowsazure.com/en-us/services/recovery-manager/
Please let us know if this is indeed Hyper-V Recovery Manager related so we can help better.
Thanks
Praveen
Praveen/ www.PraveenKumar.in

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but Aperture has a nice clone tool - the drawback is, that it only works within one image.
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Hi,
I have Storage 3310 RAID array. I want to use it as JBOD, half of the disks connected to
one controller channel, the other half to other controller channel.
I connected cables as it's is shown on FIGURE 4-16 (http://docs.sun.com/source/816-7290-19/ch04_cable.html#pgfId-999796)
but without expansion unit and with one host.
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AFAIK that's not the question. The question is can we convert (from a H/W standpoint) a RAID array to JBOD. And the answer is no.
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Scratch disk with two RAID arrays

I have 2 500GB disks in a RAID0 array for Windows / programs and another 1T RAID1 array for data. Where should I place the scratch disk?

Should I create a dedicated partition on the RAID0 array for the scratch space?
Please do yourself a big favor and do not do any partitions. They will only slow things down, as the OS thinks it's 2 physical HDD's and will tell them (the two logical HDD's), that it needs data at the same time. Remember, it's one physical HDD (even though it's striped, it's managed as one.
Now, here are my thoughts:
1.) RAID 0's will speed things up. However if one of the two drives fails, ALL is lost. I do not recommend using a RAID 0 (any flavor of 0), for the system/program disk. If you do, be sure to have a great backup scheme and use it.
2.) Now, as of CS, PS no longer has a real limitation on how much HDD space it can use for Scratch Disks. Going back, on was limited to 4GB and had the ability to set 4 of these. Back then, having say a 32GB SCSI HDD, and doing some 4GB partitions made sense. Now, it does not.
I'd get a very fast, smaller system HDD. Then, you can use either of those RAID arrays for your media, and the other for your Scratch Disks. Having a dedicated hardware RAID controller will speed things up too.
On my system, used almost exclusively for PS, AI, InDesign, Painter and Video editing, I have 4x 1TB SATA II's for Scratch Disks, 2x 1TB SATA II's for still & video and audio. My system drive is a 500GB SATA II. Were I building now, I'd probably go with RAID 0 for the media and also a RAID 0 for my Video Exports, with non-striped 1TB SATA II's for my Scratch Disks.
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Hunt

RAID array became drive F: instead of C:

Hm... when installing Win XP new on my new system, the RAID array (which is bootable and has the op.system) became drive F: and my ZIP drive is now drive C: 8o
It wouldn't bother me too much, but some software insists on being de-compressed to C: during installation - good thing that not one of my CD-ROMs became drive C: , lol
Any way to change the drive assignment so that the array would become C: ?
On my earlier K7T266Pro2-RU, I had no such phenomenon ?(

changing it is childs play, however you cant do it.
first ill tell you how, then ill tell you why you can't.
ok, goto control panel, then administrator options, then computer management, then select Disk Management
Down on the left hand side at the bottom you should see your disks and Cd drives etc with there current letters, right click and slect new letter, but you can use a letter already in use, so the one on C or D you want to use, change first to H or whatever, then change the one thats wrong to what it should be and then change back your drive to C or D or what you want it to be.
But, why can't you change it?
Because all the root paths for windows will be pointing to F:\ and if you change to C:\ you may well find gods unholy mess on boot up. Thats if it even boots up.
Way to do this is boot PC with only CD and hard disk on, when XP is all happy make sure letters are ok, and then start adding devices and changing letters.
When all service packs and updates installed and win XP totally happy, at that point i suggest doing the activation, not before, incase something goes wrong and you need to reinstall.
hope that helped..

Is it possible to record data directly from PXI-5112 scope card through PXI bus to SCSI RAID array (connected to PXI-8210)?

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Is it possible to record data directly from PXI-5112 scope card through PXI bus to SCSI RAID array (connected to PXI-8210)?
Which will be the maximum transfer rate for continuous data recording?
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Sergey

Sergey,
The PXI-8210 can connect to any SCSI 2 compliant device. If the RAID controller is SCSI 2 and appears just like a hard drive in the operating system, then you can send data directly to the RAID array. The problem is that the driver for the PXI-5112 does not yet support continuous acquisition. The on-board 16MB or 32MB buffer stores the data until the entire acquisition is completed. Once the acquisition complete, all of the data is transferred from the on-board buffer to the hard drive. After that happens, the NI 5112 is ready for another acquisition.
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REPEAT AFTER ME: WHEN YOU HAVE A STABLE OS AND APPLICATION COMBO, CLONE YOUR STARTUP DRIVE. This is the only way, I repeat, THE ONLY WAY to work if you depend on your system for your livelihood. I clone to a second internal drive and I can be back to work in a matter of minutes if things go south after an update or upgrade. There is no way that Apple can thoroughly test every possible hardware and software combination. And do not expect a third party supplier to have updates immediately ready.

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However when I run the Object Manager in the ods_preinstall directory it starts but in the log file I get the following error message:-
02/14/02 09:46:18 : (892) : Error in IO Control call for disk PhysicalDrive0 (Error 21)
02/14/02 09:46:19 : (892) : The count = 28
02/14/02 09:46:19 : (892) : The signature is 0x443aa035
02/14/02 09:46:19 : (892) : Error: First Partition of the disk must be an extended disk
02/14/02 09:46:19 : (892) : Found the partition: 7
Any idea whats happening....? Has anyone seen this before. Do I need to do something special in teh RAID..?
TIA
Martin

Here are some possible solutions:
1. The installation notes state that you must be logged on as Administrator to be able to install 9i. Are you logged on as the Administrator? Being logged on as user01 with Administrator priviledges isn't the same as Administrator.
2. Is the disk full? If I remember my installation correctly, I needed 3 times the size of the files. The documentation will tell you how much space you need.
Hope these two questions help
Regards,
Michael

[VIA] K7T266 PRO- RU motherboard: Windows XP on a RAID ARRAY (fasttrak100 LITE)

Hi All!
I have a
MSI K7T266 PRO- RU motherboard, BIOS is the latest, official from MSI website,
Problem short description: Windows XP (sp1 or sp2 english, I tried both)
will not install when I set 2 x 40 Gig = ~80 Gig Stripe Array.
detailed description:
motherboard K7T266 PRO- RU BIOS 1.9 AMI BIOS.
AMD ATHLON XP 1700 + "Palomino" microprocessor, at default speeds.
one piece of 512 PC 3200 RAM, can tell details later.
Power supply: 400 W CODEGEN model : 300X.
HDD-s : one IBM deskstar, fully functional, and a SEAGATE barracuda. seagate SEATOOLS, IBM DFT 32 no errors both.
I set in the FASTTRAK 100 LITE "PDC20276R" (written on the chip) bios a STRIPE array. Powerquest drive magic , or the Windows XP CD handles it fine , as a 80 gig disk.
I downloaded ALL available versions of the FASTTAK 100 LITE driver from the MSI website.
(only tried: MSI driver FASTTRAK 100 lite, the only available driver on the MSI website, and various drivers from www.promise.com) ( http://www.promise.com/support/download/download2_eng.asp?productId=15&category=driver&os=0&go=GO ) (but I guess they WONT support my raid controller on the motherboard)
Windows XP CD , booting, Press F6 for additional RAID /SCSI drivers, I put in the floppy, choose WinXP fasttrak lite driver, windows continues, even formatting the 80 GIG disk, copy files- access the FASTTRAK.SYS driver, EITHER it says: no fixed disk present, press F3 to exit windows setup, or windows setup continues, copies files, reboots, and then STOP ERROR
http://www.martin555.dyndns.org/stop.jpg
please, help me with the following:
how to install XP on a raid array.
is it worth, will it be little bit faster disk load times etc?
is it secure if I trust the HDD-s?
any clue, how to overclock the AMD 1700+ athlon XP palomino to its maximum, but still stability?
AND : I read a lot about some MOD-ded BIOS called " KUNIBERT" , which makes the LITE raid to a FULL RAID and some other extras? where to get it and what to do?
email me if you can martin5 "at" freemail.hu
THANKS !

pardon me, dump? my english is not very perfect.. you mean to trow away, replace to something better, more stable power supply, more powerful?
you must see... first I would like to resolve the "installing XP on a raid array" problem,( how is it possible, is it worth, will it speed up hard disk access and load times... etc... ) and after that maybe I will OC the machine...
it is now , with a 8 cm ventillator and a large aluminium cooler 39 Celsius IDLE and goes to 45 Celsius during EVEREST benchmarking test. (temperatures on 1700+ default setting and OC-'d to 1900+. just experiencing with it. ) (I saw the toms hardware guide movie , smoking processors..)
cheers, Marton.

KT4 Ultra: problem config. raid array IDE3

I owe the MSI 6590 KT4 Ultra BSR mainboard and I have difficulties configurring the RAID array in striping mode, on the IDE3 controller.
The manual describes on page 2-18 it's possible to connect up to 2 hard drives, cdrom, 120mb fd and other devices to the IDE3 controller.
Unfortunately only one of my two MAXTOR D740X-6L (6L080J4) 80gig drives is recognized by the array.
One Maxtor hard drive is jumpered as MASTER and the other is set up as SLAVE.
When I hook up the cable to an ordinary IDE port (eg IDE1) the two drives are properly recognized.
Both drives can be formatted using the regular IDE ports, this means without any cluster errors or other errors so the drives are physically OK.
Before I wrote this post I checked the support section again to make sure I am using the latest BIOS which is 1.1. I also downgraded to 1.0, but that didn't solve my problem either.
Since I work in a computer shop now and then I had the opportunity to check two Maxtor Fireball3 30gig drives on a different MS-6590 RAID board (BIOS 1.1.) and exactly the same problem occurs: the 2nd drive won't be recognized in the ARRAY on IDE3.
Please tell me what to do to make the striping option fully work on my two IDENTICAL Maxtor hard drives since MSI support came up with a standard email, which didn't cheer me up at all. Hopefully this time they will investigate this matter since no doubt more people will experience this.

Thanks for the quick response, though it's not satisfactory for me (of course).
Actually before installing the new KT4 Ultra I owed the KT266 Pro RAID motherboard. It's true this board has two controllers for the RAID option. Nevertheless because after reading the manual of this new board I was convinced I could connect two hard drives on the IDE3-channel. This is the reason I decided to go ahead and to upgrade to this new mainboard.
I guess I have to go back to my employer and fall back again to my KT266 (MS6380).

Multiple RAID arrays

Hi, quick question about the K8N Neo:
It has two RAID controllers on it (Southbridge and the Promise controller). Is it possible to have a RAID0 array (for the OS) and a seperate RAID1 array for data?
Is it possible to setup this type of configuration on the one controller (not the same as 0+1)?
If not possible, are there any other boards that do support it?
Finally, has anybody had any experience with a setup like this? Is/was it any good?
Cheers,
M
Hmmmm, wasn't exactly a quick question after all...

the via one is best for raid 0 but once you put 2x sata on that you will have to use the promise for the other array any way
i dont think any boards onboard raid is any better than what you have
not untill nforce 3 with 4x sata comes along

Remote sync between two RAID arrays

We have two Xserve RAID arrays. One is here in our local office, the other at a remote site which hosts a few of our servers as well. Does anyone have any suggestions for keeping the two synced? I would like to not have to deal with tape backups in the office, but the files being stored here are pretty valuable. I've dealt with this on the Windows side with a tool called Tacit. Essentially that was a Windows box that had proprietary software that would continually update remote Tacit boxes. Anything like that on the Mac side? Possibly free? Would Automator be able to sync me up?
Cheers!

I made a 400.rsync script in /etc/periodic/daily:
#!/bin/sh -
# @(#)daily 8.2 (Berkeley) 1/25/94
PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
log=/var/log/rsync.log.`date -u ''+%y-%m-%d''`
date > $log
mountpoint=`mount | grep '/Volumes/EOFILMsan'`
if [ "X$mountpoint" == "X" ]
then
echo "Oh Oh, Filmsan not yet mounted" >> $log
/bin/mkdir -p /Volumes/EOFILMsan >> $log
/sbin/mount -t acfs EOFILMsan /Volumes/EOFILMsan >> $log
fi
echo "START VIDEOsan" >> $log
rsync -av --delete /Volumes/EOVIDEOsan/ /Volumes/EOFILMsan/EOVIDEOsan >> $log
echo "END VIDEOsan" >> $log
date >> $log

RAID arrays

Hi,
I'm very ignorant about RAID, at least in a lot of ways. Please bear with me for the long following quote.
"The benefit that hardware RAID can offer is two-fold: With hardware RAID systems, your Mac is dumping the data off to the RAID system itself without having to mess with actually writing it to the platters. This can make a noticeable difference when doing CPU and I/O intensive chores like DV editing, working with large publishing files, or graphic design work using really large files."
I'd like to try this. Would either of the following products allow me to set this up for my Mac?
http://eshop.macsales.com/item/Sonnet%20Technology/TSATAIIE4I/
http://eshop.macsales.com/item/Highpoint%20Technologies/RRAID2310/
And can one boot up from an array for better performance?
Thanks

Let me address your questions:
From the link on the Velociraptor I read this, "Plus, we figured a power user may want dual Velociraptors (RAID 0) to squeeze out even more speed and increase the boot drive total capacity to 600GB. So we included results for "striped" dual drive sets.
Just how did they accomplish that? Or have I asked that already?
Most of the time, a stripped RAID for booting is not helpful in every setup, for every application or person. Have your system on drive A or firewire, and clone it to the RAID after you create it, and the clone is fine.
The "ignore ownership" (to me) is a bug. CCC or SuperDuper should insure ownership is enabled before starting the copy operation. Most attempts that fail, fail because "ownership" box in Volume Get Info was "on."
But... if you haven't been using RAID much in the past, I would forgo for now, and with a couple VRs there are other ways to get the most out of two or three.
Having a "dedicated" boot drive of just the operating system and applications is often enough, and keep all data and media on another drive(s).
I keep the "home account" on 2nd drive or stripped RAID, so I have 3 drives with boot and dual-drive stripped home.
Raptors have been great for replacing SCSI and for scratch arrays.
They did not put their applications on RAID. I've found that it never helped to move any applications off the boot drive. Boot drive should be your fastest drive.
CS3 really needs a dedicated scratch drive so that it doesn't use the boot drive for scratch when working with large files. When you get to 2GB files, you need both a stripped scratch array of 2-4 drives, also dual stripe for boot, and 3rd array for media or saving files. Consider how long you have to wait to save a 2GB file over and over during the day. It adds up.
A dedicated boot drive of any type only needs to be backed up before installing updates or applications or patches. So most of the time, it stays almost the same and weekly backup is more than enough, while data may need to be backed up multiple times a day.
One note: disable Spotlight on scratch editing volumes, it causes problems to CS3 and other programs.
Make a schematic or diagram is what I do, on paper or in my mind, or I sit here with dozens of drives and shuffle files and drives around and move the system and data to where I think I want it and will make sense. Like this week rearranged everything now that I bought 4 new drives and want to run Windows Vista in VMware.

Can't create raid array in 10.4.6

I am trying to create a mirrored raid array with two Fantom USB 2 external harddrives using disk utility.
I am unable to drag the image of any hard drive into the right window and the create button is never activated.
I have restarted, verified the disks and so on. I hve tried to select a different external disk but that won't work either.
Any ideas what's up.

You can try updating the drivers from the makers site, but it could be that Apple won't allow USB drives to RAIDed.
Unless your recording ET or something where a hard drive failure could mean disaster, mirrors are not ideal form of backup.
Consider auto-cloning and auto-backup software like DeJaVu or Retrospect.
What this will do is give you the benefit of time, cloning will "clone" a whole boot drive and make it bootable in case you need it. (You can clone a whole non-boot drive as well.) Auto-backup will copy user type files and folders, but it's not designed to copy a OS from one drive to another.
http://www.apple.com/downloads/macosx/systemdiskutilities/dejavu.html

Reinstall Windows on raid array

Hello all,
I have 2 arrays running a 0+1 which windows in installed on and a raid 1 which my games are installed on.
I originally built the array after windows was installed so I didnt have this issue....
I want to reinstall windows on the same array and to do so would be boot from the cd like normal and F6 and install the raid drivers and windows should then see the arrays. Pick my array to install to and away I go...
Second question I assume running my games/programs from a 0+1 array would work better than the raid 1?
Tell me if I'm missing something. TIA
K9N platinum sli

Tiresmoke, I think you missed the part where he said RAID0_1 and RAID1. He has two arrays, the first is RAID0_1 which mirrors stripe sets (see here: http://www.acnc.com/04_01_0_1.html), and the other is RAID1 which is simply a mirror.
That being said, I'm about to try the same thing. I just bought 3 additional WD Raptor 74GB 10K SATA drives and am doing some basic IOMeter performance testing now before creating a 0+1 set. Wanted to quantify the performance gain, I'll post it in a new thread when I'm done.
As for your first question, yes, you'd want the latest nVidia RAID drivers on floppy to inject into the install with the F6 key.
For the second question, the performance of a stripe set is superior to that of a mirror set, and a mirrored stripe set beats them both.
Let me explain:
Normal access (non-RAID) would write to one disk. When reading, it would read from one disk.
On a stripe set (RAID0), you write to multiple disks (doubling, tripling or quadrupling your write performance depending on how many disks 2, 3, or 4), and the same with reads. But you gain performance, but no redundancy, and in fact increase your risk of failure (any drive dies and you effectively lose all of them).
On a mirror set (RAID1), you write to two disks simultaneously (no performance gain, but failure protection), but you can read from both disks simutaneously thereby doubling your read performance!
On mirrored stripe sets (RAID0_1) you gain the performance gain of the stripe, with the added redundancy of the mirror. You get 2-factor read performance improvement along with redundancy. If it were possible to add more disks to it, you could realize even better read performance, but alas you can't use the two Silicon ports in the nVidia RAID set.
That make sense?

Is It Possible to Clone RAID Array in a Safe and Easy Way?

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