Conversion of ad20 non raid to a D20 raid 1 and keeping existing OS/data

I have a new D20 with windows 7-x64 pre installed on it. I purchased a second Lenovo supplied sata add in drive to convert the system to raid 1.
When I add the “raid 1” in support in the bios, the system when it reboots does not recognize the existing windows 7 partition.
When I used “other mfg” on board raid configuration, the working partition was considered the master partition and was automatically mirrored to the new added drive (making it raid1)
My expectation was that there would be either a “thinkvantage” tool that allowed you to do this from the OS, or there would be a some OS add on tool that performs this function
So my question.. Can you convert a d20 non raid to a D20 raid 1 (given drives are the same etc), and if so (I am a glass half full person), what is the process required to do so.
thanks
matt k.

if the marvell RAID controller hasn't been enabled, you'll need to install the driver. it can be found here: http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-73697
after this is installed, boot into the D20 BIOS and enable RAID. reboot again into the unconfigured drive and see if you can get into windows. if so, you can set up your RAID 1 array.
if you want to control RAID configuration from within windows, you'll need to install the marvell RAID utility found here: http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-73073
(edit: typo)
ThinkStation C20
ThinkPad X1C · X220 · X60T · s30 · 600

Similar Messages

D20 Raid 1 setup

Hi,
I am able to install and boot into windows when plugged into the raid ports, but when the raid is created the drive does not boot and display no operating disc found. Seems as though the raid wipes the drive. I select the primary drive 1st in the Raid creation process.
Any help greatly appreciated.
Thanks
Justin

We need more information to understand what exactly your issue is.
What are "raid ports"? D20 consists of blue ports (routed to the onboard Marvell controller) and black ports (routed to the Intel ICH legacy AHCI controller).
I think you're saying you can boot a single non-RAIDed drive plugged into the blue ports, but when you try to RAID two drives on that controller, you're not able to boot the RAID array.
-How are you creating the RAID array? Are you using the Marvell OPROM (ctrl+m) during POST?
-Assuming you've created the RAID array correctly using the Marvell OPROM, are you then ensuring the RAID array is listed in the boot sequence?
Once the RAID array is created successfully and showing in the boot sequence, you'll still have to get an OS put on the RAID array (assuming you want the array to be the bootable partition). Boot to your installation CD, and then provide the Marvell controller driver when prompted in order to see the array in the list of available drives. I don't believe the Marvell drivers are native to any of the win7 installations (including the service packs) and they must be supplied manually.

D20 raid

hello all and happy holidays,
a few questions - perhaps someone can help me
I have a D20 w/ three segate 15k 300 gig drives in raid 0 on the marvell sas controller, i just bought 2 new samsung 850 pro's that I want to use as the boot drives- I just found out that the intel chipest I have does not support raid, there fore I must use the marvell controller.
however, I want to use the three 15k drives in raid 0 for back up to my new SSD drives.
Short of buying a controller, can this be done?
Yes the 850's support trim and nearly every other function I can think of.
I really do not want to start my os all over- even if I could figure out a way to migrate the data to a SAMASUNG raid array via my present set up I would be happy, as I would just buy a 1tb wd black and place it on the intel controller.
I did connect to 850 pros to the other two ports on the marvell controller and created a raid 0 array, along w/ the seagate array I already have- and this did work, however, the samsung software does not see the 850 pros (shows up as a second marvell raid array) so I cant use the samsung software as it must see the samsung drive to enable their software- any ideas what to do?
I have a funny felling I am going to have to buy a hardware raid controller. in this case can anyone recomend a good unit for a reasonable price?
thank you

well at the moment I have three 300 gb sas (900gb) 15.7k seagate drives in raid 0- via the marvell controller, and the samsung drives are 256gb each- for 512 gb raid 0, so i am well under the 2.2 tb maxium.
oddly I can create the array in the mavell raid set up, but I can not low level format them, and my computer's bios see's the drives. however, the samsung software see's the samsung raid array as marvell raid array xxx, this is why the samsung software wont work. it seems the samsung software requires the unique id information from each drive which when the raid array for the samsungs are created is not available due to some weird naming policy- it would seem.
I have this same issue with the seagate drives- they appear as marvell raid array xxx- not as seagate drives.
as well, I cant seem to format the samsung drives (when in raid) from the marvel raid utillity, nor from the windows enviroment. as single drive they function as expected. the samsung ssd drives I am using are the new 256gb 850 pro drives.
any additional information you need i will glady make available.
thank you for your assitance, I hope we can figure this one out, as I have never ran into this sort of issue before. most mobo I have set up in the past with multiple chip sets allow for two raid set ups via each controller.

To RAID or not to RAID, that is the question

People often ask: Should I raid my disks?
The question is simple, unfortunately the answer is not. So here I'm going to give you another guide to help you decide when a raid array is advantageous and how to go about it. Notice that this guide also applies to SSD's, with the expection of the parts about mechanical failure.
What is a RAID?
RAID is the acronym for "Redundant Array of Inexpensive Disks". The concept originated at the University of Berkely in 1987 and was intended to create large storage capacity with smaller disks without the need for very expensive and reliable disks, that were very expensive at that time, often a tenfold of smaller disks. Today prices of hard disks have fallen so much that it often is more attractive to buy a single 1 TB disk than two 500 GB disks. That is the reason that today RAID is often described as "Redundant Array of Independent Disks".
The idea behind RAID is to have a number of disks co-operate in such a way that it looks like one big disk. Note that 'Spanning' is not in any way comparable to RAID, it is just a way, like inverse partitioning, to extend the base partition to use multiple disks, without changing the method of reading and writing to that extended partition.
Why use a RAID?
Now with these lower disks prices today, why would a video editor consider a raid array? There are two reasons:
1. Redundancy (or security)
2. Performance
Notice that it can be a combination of both reasons, it is not an 'either/or' reason.
Does a video editor need RAID?
No, if the above two reasons, redundancy and performance are not relevant. Yes if either or both reasons are relevant.
Re 1. Redundancy
Every mechanical disk will eventually fail, sometimes on the first day of use, sometimes only after several years of usage. When that happens, all data on that disk are lost and the only solution is to get a new disk and recreate the data from a backup (if you have one) or through tedious and time-consuming work. If that does not bother you and you can spare the time to recreate the data that were lost, then redundancy is not an issue for you. Keep in mind that disk failures often occur at inconvenient moments, on a weekend when the shops are closed and you can't get a replacement disk, or when you have a tight deadline.
Re 2. Performance
Opponents of RAID will often say that any modern disk is fast enough for video editing and they are right, but only to a certain extent. As fill rates of disks go up, performance goes down, sometimes by 50%. As the number of disk activities on the disk go up , like accessing (reading or writing) pagefile, media cache, previews, media, project file, output file, performance goes down the drain. The more tracks you have in your project, the more strain is put on your disk. 10 tracks require 10 times the bandwidth of a single track. The more applications you have open, the more your pagefile is used. This is especially apparent on systems with limited memory.
The following chart shows how fill rates on a single disk will impact performance:
Remember that I said previously the idea behind RAID is to have a number of disks co-operate in such a way that it looks like one big disk. That means a RAID will not fill up as fast as a single disk and not experience the same performance degradation.
RAID basics
Now that we have established the reasons why people may consider RAID, let's have a look at some of the basics.
Single or Multiple?
There are three methods to configure a RAID array: mirroring, striping and parity check. These are called levels and levels are subdivided in single or multiple levels, depending on the method used. A single level RAID0 is striping only and a multiple level RAID15 is a combination of mirroring (1) and parity check (5). Multiple levels are designated by combining two single levels, like a multiple RAID10, which is a combination of single level RAID0 with a single level RAID1.
Hardware or Software?
The difference is quite simple: hardware RAID controllers have their own processor and usually their own cache. Software RAID controllers use the CPU and the RAM on the motherboard. Hardware controllers are faster but also more expensive. For RAID levels without parity check like Raid0, Raid1 and Raid10 software controllers are quite good with a fast PC.
The common Promise and Highpoint cards are all software controllers that (mis)use the CPU and RAM memory. Real hardware RAID controllers all use their own IOP (I/O Processor) and cache (ever wondered why these hardware controllers are expensive?).
There are two kinds of software RAID's. One is controlled by the BIOS/drivers (like Promise/Highpoint) and the other is solely OS dependent. The first kind can be booted from, the second one can only be accessed after the OS has started. In performance terms they do not differ significantly.
For the technically inclined: Cluster size, Block size and Chunk size
In short: Cluster size applies to the partition and Block or Stripe size applies to the array.
With a cluster size of 4 KB, data are distributed across the partition in 4 KB parts. Suppose you have a 10 KB file, three full clusters will be occupied: 4 KB - 4 KB - 2 KB. The remaining 2 KB is called slackspace and can not be used by other files. With a block size (stripe) of 64 KB, data are distributed across the array disks in 64 KB parts. Suppose you have a 200 KB file, the first part of 64 KB is located on disk A, the second 64 KB is located on disk B, the third 64 KB is located on disk C and the remaining 8 KB on disk D. Here there is no slackspace, because the block size is subdivided into clusters. When working with audio/video material a large block size is faster than smaller block size. Working with smaller files a smaller block size is preferred.
Sometimes you have an option to set 'Chunk size', depending on the controller. It is the minimal size of a data request from the controller to a disk in the array and only useful when striping is used. Suppose you have a block size of 16 KB and you want to read a 1 MB file. The controller needs to read 64 times a block of 16 KB. With a chunk size of 32 KB the first two blocks will be read from the first disk, the next two blocks from the next disk, and so on. If the chunk size is 128 KB. the first 8 blocks will be read from the first disk, the next 8 block from the second disk, etcetera. Smaller chunks are advisable with smaller filer, larger chunks are better for larger (audio/video) files.
RAID Levels
For a full explanation of various RAID levels, look here: http://www.acnc.com/04_01_00/html
What are the benefits of each RAID level for video editing and what are the risks and benefits of each level to help you achieve better redundancy and/or better performance? I will try to summarize them below.
RAID0
The Band AID of RAID. There is no redundancy! There is a risk of losing all data that is a multiplier of the number of disks in the array. A 2 disk array carries twice the risk over a single disk, a X disk array carries X times the risk of losing it all.
A RAID0 is perfectly OK for data that you will not worry about if you lose them. Like pagefile, media cache, previews or rendered files. It may be a hassle if you have media files on it, because it requires recapturing, but not the end-of-the-world. It will be disastrous for project files.
Performance wise a RAID0 is almost X times as fast as a single disk, X being the number of disks in the array.
RAID1
The RAID level for the paranoid. It gives no performance gain whatsoever. It gives you redundancy, at the cost of a disk. If you are meticulous about backups and make them all the time, RAID1 may be a better solution, because you can never forget to make a backup, you can restore instantly. Remember backups require a disk as well. This RAID1 level can only be advised for the C drive IMO if you do not have any trust in the reliability of modern-day disks. It is of no use for video editing.
RAID3
The RAID level for video editors. There is redundancy! There is only a small performance hit when rebuilding an array after a disk failure due to the dedicated parity disk. There is quite a perfomance gain achieveable, but the drawback is that it requires a hardware controller from Areca. You could do worse, but apart from it being the Rolls-Royce amongst the hardware controllers, it is expensive like the car.
Performance wise it will achieve around 85% (X-1) on reads and 60% (X-1) on writes over a single disk with X being the number of disks in the array. So with a 6 disk array in RAID3, you get around 0.85x (6-1) = 425% the performance of a single disk on reads and 300% on writes.
RAID5 & RAID6
The RAID level for non-video applications with distributed parity. This makes for a somewhat severe hit in performance in case of a disk failure. The double parity in RAID6 makes it ideal for NAS applications.
The performance gain is slightly lower than with a RAID3. RAID6 requires a dedicated hardware controller, RAID5 can be run on a software controller but the CPU overhead negates to a large extent the performance gain.
RAID10
The RAID level for paranoids in a hurry. It delivers the same redundancy as RAID 1, but since it is a multilevel RAID, combined with a RAID0, delivers twice the performance of a single disk at four times the cost, apart from the controller. The main advantage is that you can have two disk failures at the same time without losing data, but what are the chances of that happening?
RAID30, 50 & 60
Just striped arrays of RAID 3, 5 or 6 which doubles the speed while keeping redundancy at the same level.
EXTRAS
RAID level 0 is striping, RAID level 1 is mirroring and RAID levels 3, 5 & 6 are parity check methods. For parity check methods, dedicated controllers offer the possibility of defining a hot-spare disk. A hot-spare disk is an extra disk that does not belong to the array, but is instantly available to take over from a failed disk in the array. Suppose you have a 6 disk RAID3 array with a single hot-spare disk and assume one disk fails. What happens? The data on the failed disk can be reconstructed in the background, while you keep working with negligeable impact on performance, to the hot-spare. In mere minutes your system is back at the performance level you were before the disk failure. Sometime later you take out the failed drive, replace it for a new drive and define that as the new hot-spare.
As stated earlier, dedicated hardware controllers use their own IOP and their own cache instead of using the memory on the mobo. The larger the cache on the controller, the better the performance, but the main benefits of cache memory are when handling random R+W activities. For sequential activities, like with video editing it does not pay to use more than 2 GB of cache maximum.
REDUNDANCY(or security)
Not using RAID entails the risk of a drive failing and losing all data. The same applies to using RAID0 (or better said AID0), only multiplied by the number of disks in the array.
RAID1 or 10 overcomes that risk by offering a mirror, an instant backup in case of failure at high cost.
RAID3, 5 or 6 offers protection for disk failure by reconstructing the lost data in the background (1 disk for RAID3 & 5, 2 disks for RAID6) while continuing your work. This is even enhanced by the use of hot-spares (a double assurance).
PERFORMANCE
RAID0 offers the best performance increase over a single disk, followed by RAID3, then RAID5 amd finally RAID6. RAID1 does not offer any performance increase.
Hardware RAID controllers offer the best performance and the best options (like adjustable block/stripe size and hot-spares), but they are costly.
SUMMARY
If you only have 3 or 4 disks in total, forget about RAID. Set them up as individual disks, or the better alternative, get more disks for better redundancy and better performance. What does it cost today to buy an extra disk when compared to the downtime you have when a single disk fails?
If you have room for at least 4 or more disks, apart from the OS disk, consider a RAID3 if you have an Areca controller, otherwise consider a RAID5.
If you have even more disks, consider a multilevel array by striping a parity check array to form a RAID30, 50 or 60.
If you can afford the investment get an Areca controller with battery backup module (BBM) and 2 GB of cache. Avoid as much as possible the use of software raids, especially under Windows if you can.
RAID, if properly configured will give you added redundancy (or security) to protect you from disk failure while you can continue working and will give you increased performance.
Look carefully at this chart to see what a properly configured RAID can do to performance and compare it to the earlier single disk chart to see the performance difference, while taking into consideration that you can have one disks (in each array) fail at the same time without data loss:
Hope this helps in deciding whether RAID is worthwhile for you.
WARNING: If you have a power outage without a UPS, all bets are off.
A power outage can destroy the contents of all your disks if you don't have a proper UPS. A BBM may not be sufficient to help in that case.

Harm,
thanks for your comment.
Your understanding was absolutely right.
Sorry my mistake its QNAP 639 PRO, populated with 5 1TB, one is empty.
So for my understanding, in my configuration you suggest NOT to use RAID-0. Im not willing to have more drives in my workstation becouse if my projekts are finished, i archiv on QNAP or archiv on other external drive.
My only intention is to have as much speed and as much performance as possible during developing a projekt
BTW QNAP i also use as media-center in combination with Sony PS3 to run the encoded files.
For my final understanding:
C: i understand
D: i understand
E and F: does it mean, when i create a projekt on E, all my captured and project-used MPEG - files should be situated in F? Or which media in F you mean?
Following your suggestions in want to rebulid Harms-Best Vista64-Benchmark comp to reach maximum speed and performance. Can i use in general the those hardware components (exept so many HD drives and exept Areca raid controller ) in my drive configuration C to F. Or would you suggest some changings in my situation?

3rd-party software to make RAID 1 (mirror) on a drive that already has data

Is there software which lets you simply add a 2nd drive to an already working Mac and make a RAID 1 mirror without waiting for the following:
- clone the internal drive to an external for backup
- add the 2nd internal drive
- erase both internal drives
- make the RAID 1 set out of both drives
- clone the data back to the RAID 1 from the external
This works just fine. It just takes a long time and requires extra external drives to boot from and do the cloning.
What I'm looking for is a utility that will reduce the process to:
- clone to external for just-in-case backup
- add the 2nd internal drive
- use the utility to mirror the 2nd (new) drive to the pre-existing data on the 1st drive and make a RAID 1 mirror set out of them (without erasing them)
- there is no step 4. there is no step 4! (ha ha ha)
in short: to make an OS X RAID 1 without having to erase a drive that already has customer data with the Disk Utility or some other software
I checked Made4Mac already - none of the listed partitioning tools seem to be able to make a RAID "in place". I'm assuming this is not easy or Disk Utility would already be able to do it.
It's too bad the Disk Utility can only make a RAID 1 using blank, virgin drives. Maybe they'll fix it in Leopard. Can anyone from Apple comment?
I know about SoftRAID - but it's $149 per seat. I'm looking for something I can use on customer machines over and over again, without having to sell them a software license - like Partition Magick or DiskWarrior.
Thanks!
RAID 1

IKE-D-
Why not use the CLI and do it that way? i don't know it AppleScript hooks into the terminal and/or can run terminal commands but that may be worth looking into as well.
I would think that it would be a good idea to erase all your drives in the RAID at once and start fresh. Why not back up the internal to a pair of RAIDED external FW800 drives, add the second drive in the Mac, make the internal RAID by formatting both drives and then copy the external RAID back to the internal RAID? Oops, I know, now we have a step 4.
Nobody from Apple ever comments here. We are all users, just like yourself, that just want to help.
Luck-
-DaddyPaycheck

How do I change an Apple ID payment method to 'None'? I've tried everything and the only solution is to get a new e-mail and start all over again. Any other options?

How do I change an Apple ID payment method to 'None'? I've tried everything and I found the only solution is to apply all over again with another e-mail address. Any other options?

Buy an iTunes Music Card and redeem it to your account - the "none" option should be available then.

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

Backup solutions w/RAID or redundancy (NAS, RAID, DIY File server)

Hi all, I need a place to bounce my ideas off of. Here goes:
I have been doing a lot of reading, since I was considering adding an NAS solution for my home network. My data consists mainly of videos (TVs and movies) and pictures (many many years worth).
Anyways, out of the box solutions seemed a bit too pricy and the RAID not that spectacular unless you're willing to spend, so I began looking at building my own fileserver, with a hardware/software RAID solution. That was a bit better bang for the buck, but I still had one nagging concern.
I've played around with RAID before, and I realized that with mirroring (the only RAID option I was really considering), was that it relied on the RAID controller. I couldn't just take a hard drive, remove it physically from the array, and have my information accessible when plugging it into another computer.
What happens in a few years if your RAID controller dies and you can't find the exact same one? Your array will always be dependent on that controller and I really don't like that feeling. I'd rather have the option of taking a drive, plugging it in another computer, rather than needing to move the whole array (RAID, NAS, DIY file server) around. That means quicker access to my information or the ability to take it with me anywhere I go, on a moment's notice.
The least costly solution I have come up with, for data that doesn't change all that much, is to have two huge drives (1 TB) on a computer, either one or both connected via eSATA. Just remember to ghost/copy the main drive once in a while, and keep the 'backup' drive detached (preferably located in a fire-proof safe) and back it up once in a while, on a regular basis).
Sorry for the long post, but how does that sound, for a cheap, reliable backup solution, for data that doesn't get updated too frequently and for ease of access and use?

Hi BGBG;
For what you are attempting to do, RAID is not the best solution. The reason I say this is because RAID 1 is only capable of protection from disk failure. It is not a valid backup solution.
I think that your last solution of using eSATA and a copy is the best. My only addition to your proposal would be a third disk. That way when you move the backup disk into storage you could replace it with the third one. In this way you could use SuperDuper to periodically backup between two disks.
Allan

I have used SAP doc mgmt for years. We copied a client and now when I configure a Class to my DMS DIR and go to CV01n Additional Data NONE of the characteristic entry boxes show up. Additional Data is blank.

I have used SAP doc mgmt for years. We copied a client and now when I configure a Class to my DMS DIR and go to CV01n Additional Data NONE of the characteristic entry boxes show up. Additional Data is blank.
It appears there must be some high level setting missing in the client. I have checked all authorizations and cannot find a difference between this client and all of the other clients we have. Only this one client does not show the class characteristics in the Additional Data tab.
Any ideas of why this standard function is not working). It does not matter which DIR I config the 017 class to, nothing shows on Additional Data.

Hi,
The issue is resolved. We are working in a sandbox with Class configuration on a DMS issue related to standard class 017. There are no standard settings in SPRO - Cross-Application Components | Maintain Object Types and Class Types | for the object type DRAW that will allow "auto-populating" characteristic values as we do with VC class 300.
For whatever reason DRAW and class 017 are not configured by SAP in the same manner as class 300 for example.
We made a config entry for DRAW Class 017 VBAP. Let's just say the system did not like that.
We are exploring other options.

2 Filled Sonnet Fusion 500P enclosures; RAID 0/1, or RAID 5?

I currently have a Sonnet Fusion 500P loaded with 5 WD 500GB RE2 drives; all running individually and not RAIDed; this box is connected to a Sonnet Tempo E2P in my MacPro.
I'm interested in getting a 2nd identical enclosure and drives, and creating a RAID system using 10 drives. I also plan on upgrading the E2P to the E4P, since it will provide increased RAID performance that the E2P does not.
I've been reading the various posts on RAID on these forums, and also have looked through the AMUG articles and reviews, and I have a couple of questions.
First, can I stripe the 5 drives in each enclosure, and then mirror the two enclosures? This RAID setup will be used for Final Cut Pro capture and editing, and also for DVD Studio Pro files. Basically, I would have 2.5TB of high speed storage, and a duplicate of that.
Second question-can I do this with Disk Utility, or would I need additional software/hardware to accomplish it?
And finally, I'm a little vague about RAID 5 setups, but would it be better to create a RAID 5 with one enclosure and 5 drives, using 4 for storage and one for parity information? From my limited knowledge of this, I think that if the RAID 5 failed, it could be rebuilt using the info on the 5th drive? Is this correct?
What would be the best way to go here, taking into account the hardware I already have? If I'm off base, I'm open to suggestions for a different setup that would have comparable storage space, speed, and backup.
Thanks for any advice anyone can give.

Dear Mike,
It sounds like you want more RAID capabilities than Disk Utility can easily provide. Since you are looking for a new host adapter card anyway, you might as well get one that can provide RAID 0, 1, 5 and 1/0. I would suggest the HighPoint RocketRAID 2314 if you want to stay with individual eSATA cables. The AMUG review can be found here:
http://www.amug.org/amug-web/html/amug/reviews/articles/highpoint/2314/
If you would rather have a card with a single cable and do not mind purchasing an extra cable, I really like the HighPoint RocketRAID 2314MS which is the same card with a different cable system. Here is that AMUG review and a link to the cable you would need:
http://www.amug.org/amug-web/html/amug/reviews/articles/highpoint/2314ms/
http://www.amazon.com/exec/obidos/ASIN/B000JQ51CM/arizomacinusergr
The Sonnet E4P is a good card but it cannot support RAID 5, 10 or 50 and the HighPoint cards can.
The HighPoint cards also provide just as good or better performance with a 10 drive SATA PM configuration like the one you are considering.
It sounds like the main reason for the second SATA PM enclosure is mainly backup. Please understand that a RAID 5, 10 or 50 configuration adds redundancy to your hard disk array but it is not a guarantee that you will recover from directory corruption or user errors. If the directory is corrupted on a RAID 10 it can easily write the same corrupted data on the mirror copy of the drive.
If you truly want a backup, I would consider using SuperDuper or Carbon Copy Cloner at the end of each day to backup the work on the first SATA PM RAID to the RAID in the 2nd SATA PM enclosure. Having your backup off-line when not in use is the best way to be ensure the backup data will be intact when you need it.
Have fun!

Best RAID configuration for storing Datafiles and Redo log files

Database version:10gR2
OS version: Solaris
Whis is the best RAID level for storing Datafiles and Redo log files?

Oracle recommends SAME - Stripe And Mirror Everything.
In the RAC Starter Kit documentation, they specifically recommend not using RAID5 for things like voting disk and so on.
SAN vendors otoh claims that their RAID5 implementations are as fast as RAID10. They do have these massive memory caches...
But I would rather err on the safer side. I usually insist on RAID10 - and for those databases that I do not have a vested interest in (other than as a DBA), and owners, developers and management accept RAID5, I put the lead pipe away and do not insist on having it my way. :-)

None of the solutioin Manager ST and ST-TAO packages were found

Hi all,
I'm in the middle of installation and configuration of SAP TAO. My SAP TAO was fully connected to the SAP SolMan (SAP EHP 1 for SAP Solution Manager 7.0) and to HP QualityCenter/QuickTest Pro (both with version 10).
But I canu2019t connect to the SAP ECC 6.0.
When i run SAT TAO 2.0.6.0, the error message that appears is "The following error message has been sent while cheking the connection to the Solution Manager backend system: None of the solution manager ST and ST-TAO packages where found. Ensure that they are installed.".
I install on SAP ECC 6.0, the files from SAP_TAO_2_0_ABAP / plugin 70x / (KITLRD1.SAR and KITLRDA.SAR), who after deploy with SAPCAR result on
a) CSN0120061532_0034496.ATT
b) CSN0120061532_0034496.PAT
c) CSN0120061532_0038764.ATT
d) CSN0120061532_0038764.PAT.
After that, i put that files on \usr\sap\trans\eps\in and run transation saint to uploading. I see sucess on that operation.
I run again SAP TAO, who is on the virtual machine on the HP QC and HP QTP, and i find again the error.
Important note: on the window of program of SAP TAO when we press the button "Test SAP Connection", the comment is "Function module "TAOAGENT" not found"
What I did wrong or what is missing?
Can anyone help, please
BR
Edited by: catalaopaulo on Feb 7, 2012 7:21 PM

Hi,
The so-called TAOAGENT Function Module is part of the ST-PI
abap package. This package shall be installed on the managed system
you are trying to test (this is NOT the Solution Manager backend).
Depending on the SAP TAO version you are using, you need to install
a corresponding ST-PI version.
You can check the compatibility matrix for further details on this.
See here:
https://service.sap.com/testing -> Additional Information -> Test
Management-> Compatibility Matrix
You can find the install package for ST-PI here:
- http://service.sap.com
- SAP Support Portal
- Software Downloads
- Support Packages and Patches
- A - Z Index
- T
- SAP TAO
- SAP TAO 2.0
- Comprised Software Component Versions
For more information, see the installation note 1404715.
Thank You.
Regards,
Deepika

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Hello I bought a G-Raid GR4 4000 4 TB and used it for a backup with my new Imac27. Now this is all I get. "Time Machine couldn’t complete the backup to “G-RAID”. to complete backup. An error occurred while creating the backup folder."
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If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
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☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
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View ▹ Show Log List
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I've got a bunch of questions I wanna ask so i suppose the apt thing to do on a forum like this would be to put them in priority lol.
1. I remember somebody saying that 2 raid arrays, one being raid 0 and the other being identical and used to mirror the first is impossible. Can someone tell me why and if not how to set it up?
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4. If I Choose to go with a different version of raid, say 1, or 0+1 what sort of performance difference is there from raid 0 and for that matter from each other?
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6. Somebody mentioned that the VIA raid solution was only a software solution, is this true and if so how much CPU overhead could I Expect.
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1. a windows delayed write error can be from cacheing your hard drives go to device
manager, (rt click my computer) hardware,device manager,
disk drives ,properties, policies, un check optimise for performance.
2. the promise can run a sata array and a ide array, or can combine them into one big array, with the reduced performance of the ide drives.
3. stripped or raid 0 is the fastest, especialy if your a gamer and set it up with smaller clusters, say 32k. raid 1 is mirrored, or a duplicate copy of your hard drive and is only good if your drive fails, it does nothing for corupt windows, or installs, or viruses, it is a copy, (i use norton ghost to make drive images at various stages for backups, to combat virus, and corupt installs that destroy windows.
4.you could backup a stripped array ,but when you strip ann array say two 120 gig hard drives it creates one big 240. that is why i partioned mine into two 120s, so i could ghost them. (which i feel is better then a mirror.
5. speed, when i had my system disk on ide1 it tranfered at 36 mb/sec when i put them on ide3 raid 0 128k cluster(better for large files, like photoshop) it increased to 65 mb/sec...nearly double.
6. i oc and ide oc's better then sata, so i stuck with ide and a fsb of 222.
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