RAID

RAID stands for Redundant Array of Independent Disks.

RAID is data storage technology that allows multiple drives to be used together as a single virtual drive for reasons such as fault tolerance, reliability and performance.

There are several different levels of RAID that determine how the data is stored and the level of redundancy achieved across the drives.

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Hi Experts

we have EMC networker and we have EMC data domain DD2500

this type of solaution cost us alot every year for license and support and hardware for data domain

now we are searching for a cheap solaution as a replacment for our data domain

for Newrker we are thining to bug Veeam

but now my quastion only about data domain

i want to ask if i can buy server with huge amount of local HDD disks with raid controller  and 1000 ethernet interfaces

and configure it as NAS server and then we can backup to disk VIA NAS

and here we miss the dedaplication software

any idea about have cheap good solaution to backup to disk

kindaly advice
Sword
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windows server 2012 r2 installing on hp z440 raid 1 cannot see the drives
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Need to replace the raid controller with different type ,I need instructions for how to install without loos data ?
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The user is a photographer and presently has an 8 TB RAID, which is physically carried between two locations every few months.

They now have a decent cable modem connection in the remote connection they use, with an upload speed of 10-15 mbs

Their activity consists of loading in 2-15 gigabytes every week or so, cataloging and adjusting the photos with Adobe Lightroom.  Computers are MacOS X, maintained to the latest version of the operating system that supports Lightroom.  

What's the best way to keep two copies of the RAID in sync over the Internet?  I can set up a VPN.

Thanks
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Hello - I have a server PER710 that I will use for a FTP server. I have c drive set on a RAID 1 and I'd like to have my FTP dir on my DELL Compellent SC220. How would I create a volume on Compellent and have it recognized on PER710 Server?

Thanks,

nimdatx
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Hi , I need your help and thanks in advance
I have server 2008 R2 on Dell Poweredge 2950 with 3 SCSI HDD and RAID 5
It made from few weeks blue screen with error code 1E i changed the RAM and it worked again but from time to time made same blue screen error
yesterday i tested all RAM's and when i finished my work and turned on the server it didn't work windows
after control-E screen made a black screen and can not ping on it IP
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This is going to be a fun one...

We have a client that has an HP ML350 G5 running RAID 5 and Server Essentials SBS 2011.  So, we got a call from them that there files on the server all no longer accessible.  When I went out there, I found out that there was 3 sticks of bad memory, but the system would still turn on.  We replaced the bad sticks and I could not get into Windows.  That's when I determined that the array was bad due to a failing hard drive in bay 1 (3 drives total).  We got in a replacement drive and I was able to boot to Directory Services Restore Mode.  The drive was rebuilt and is now part of the RAID.

Told you it would be fun.  Now for the part I'm stuck on.

Hardware is easy, but software is a pain.  I cannot get it to boot into Normal Mode because the Active Directory is broken somehow.  I need assistance on repairing it to get them up and going again.

If it helps, the reason they have a server is for backup purposes of their data.  They only connect to it as a file server, not as a user on the server (if that makes sense).  Though, they do from time to time access it remotely (Web Access).
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Hi,
 
 I have DELL Poweredge T420 Server with H710 RAID  and like to update all drivers and firmware - BIOS, Chipset, iDRAC, Lifecycle ... etc. Instead of downloading necessary files on each component individually, is there some type of utility program that I can use to install firmware/drivers all together?

Thanks.
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This is virtual disk in Raid 5, where Disk 7 is hotspare.
When Disk 11 removed (failure disk), Disk 7 is Rebuilding.
Should I wait for Disk 7 rebuild completely, or I can insert new Disk 11 now?
Dell PowerEdge R510 with PERC H800 Adapter
Many thanks!
Capture.PNG
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hello i have ibm server where i by mistakely change raid option in bios to ahci..and now when i restart thge server it does not go to login page and it gives me error boot manager failed...can anybody give me the solution..i have in problem.
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Hello Experts,

On out Dell MD 3260 we are needing to add the last 13 unassigned drives to build one final array.  Is the process of creating the new Raid a pretty strait forward process?  The host mapping is not something I have worked with in the past. There is a setup tab that has "Create Storage".  Is this the wizard I am looking for?
MD4.jpg
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MD3.jpg
MD1.jpg
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MD6.jpg
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Hello,

running a Dell R 610 with 2 Disk (Raid 1), I had one disk failure (blinking orange).
computer was shut down, disk was replaced.

after the disk was changed:
 -  RAID 1 was set-up (F10 - sytem service) using express wizard,
 -  computer was boot on Windows 2003 server CD for Windows installation.

when Windows set-up is asking to define the partition, I can see the following:

285562 MB Disk 0 at Id 0 on bus 1 on percsas (MBR)
 - unpartitioned space 285562 MB
55 MB Disk on disk (MBR)
- unpartitioned space 55 MB

As I understand this "55 MB disk on disk (MBR)" is the MBR set-up from the newly installed disk which is keeping its previous MBR configuration (from previous computer. Would you know how to get it removed in order to see only the main disk and only one "unpartitioned space"?


Pat
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Hello,

 in RAID 5  I have 4 disks
if any  of  the two disks get fails  then my Data is highly available?
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I have a Dell server with RAID card using 3 600GB SAS drives.  Noticed that one of the drives was blinking orange.  Rebooted to go into RAID manager to check and these are screen shots of the issue.  Server is still booting into Windows 2008 with no issues.  Do not have a lot of experience troubleshooting/repairing RAID so I would like to get some feedback as to what the issue is and how to resolve it.  Thank you in advance for any assistance.

1. What does this mean?
2. How do I fix it?

Boot screenRaid Manager Screen 1Raid Manager Screen 2Raid Manager Screen 3
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A client has a Dell Vostro Inspiron 660. I set up a Marvell PCI-E controller with 2 disks  in RAID 1 in a customer's desktop to replace their single boot drive to add redundancy.  It does boot to the RAID, but not until after if errors with Hard Disk Failure.  Press F1 to continue or F2 to start BIOS.  F1 then boots the RAID without further issue.

I've read about turning of the inboard SATA controller, but this BIOS does not have an option to do that.  Only ATA or UEFI.  The BIOS is current. Understandably, I'd like to PC to boot without intervention.

If there are any ideas to try to solve this, it would be appreciated.  If I'm looking in the wrong direction, please enlighten me.

Thanks Lots.
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Proliant ML350 G5 with Smart Array 200i embedded.
Firstly the cache battery failed and was replaced with no problem.
The Raid is set up as 2 logical drives with 2 drives in each - mirrored. Logical drive 1 is composed of 2 SAS drives with Windows Server 2012 R2 on it. Logical drive 2 has 2 SATA drives mainly with data.
One of the drives failed in Logical drive 2 with a warning in Smart Storage Administrator and an amber light on the drive. 2 SATA drives identical to the remaining one were purchased and one was inserted with the server off. F1 was pressed on re-starting the server in order to rebuild the array and all seemed to go well, however when it finished Smart Storage Administrator reports 'Logical drive 2 is queued for rebuilding' and on rebooting I am asked to press F1 again to rebuild which it tries to do again.
The second purchased SATA drive was thoroughly tested using WD software and a full delete was carried out. This was then inserted to see if the fault was with the first replacement drive but exactly the same has happened. The rebuild seemed to finish at around 87% complete.
I have looked at what is on the first replacement drive and it looks as though it did mirror successfully. There are no errors in the Smart Storage Administrator reports other than the drive queued for rebuild and the lights on the drive seem to be acting normally.
Any advice would be appreciated.
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Hi,

I am getting this error in HP P410I smart array controller. I have replaced a faulty drive out of 6 with raid 5

Error 785 Background parity initialization is currently queued or in progress on Logical Drive 2 (2.3 TB, RAID 5). If background parity initialization is queued, it will start when I/O is performed on the drive. When background parity initialization completes, the performance of the logical drive will improve.

Please help me. attached the diagnostic report.

Thanks

Sreekanth
ADUReport.htm
ADUReport.txt
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I have three virtual servers running on a pretty hefty machine among like 5 other physical machines. each virtual has its own NIC and it plugged into one of our three switches somewhere. We are having some major slowness on two of these virtuals as far as transfer speed across the network. The virtuals are all server 2012 R2 and all are located on a raid 5.
    My first thought is that we dont have enough throughput between our switches which are Managed Cisco Switches. im about to use LAG to connect these together with increased throughput. Im seeing less than 200MBps to the slow ones and well over 300 up to 600 at least for the rest. i have seen 85 MBps on one virtual and unfortunately that was our DC. i will be putting all the servers on the same switch soon which should not limit throughput as much. is there any settings i need to look for in HyperV manager that could impact this.
   Again all my virtuals are on the same physical machine in a Raid 5. each Virtual is connected to its own NIC as well. the Server and the Switches are all less than a year old. Im using LAN Speed Test from Tutusoft for my testing and we test from multiple servers to another server to have multiple speeds to look at
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When deploying Exchange 2016, what speed drives did you use for the operating system partition (which also will include Exchange binaries and transport logs if going with standard preferred architecture).  Did you use 7.2K drives, or go for 10K/15K/SSD?  My instinct is to go for faster drives for the OS, but that limits the size which means I have to push the logs to another raid 1 set, which means more servers and increased cost.
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So I made the mistake of buying an R720xd which I now regret, as good 2.5" drives are so much less common and much more expensive.

We have SAS drives for the OS and important stuff, but we need some cheap storage for other files which dont get accessed much. I wanted to opt for 2x WD Black 2TB in RAID 1, but these do not come in 2.5", so I looked around and found a 2TB Seagate firecuda SSHD which was reasonably priced, bought them and they installed fine, setup the raid, RAID controller seemed happy. Boot into Windows and they instantly drop out of RAID and the bays start flashing orange. Ok fair enough, I tried, time to get the Blacks.

So after some research everyone seems to be of the opinion that the 2.5" WD Blacks are no different from the 3.5" model, even stumbled accross a few threads where people where running the 2.5" models in RAID 10 and other configs. So went ahead and bought 4x 1TB WD Black 2.5" and they are now doing the exact same thing as the firecudas, dropping out when Windows boots.

Is this actually a HDD issue or am I missing something?
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Hello,

I have the following situation for Dell Server 2950 with Perc 6/i Raid Controller, the server has 3 Disks Configured as Raid 5 with SAS 300 GB  each and one SATA Hard Disk configured as Raid 0 .
When Clicking Virtual Disk using open manage it shows the following :
Physical Disk 0:0:0 - Online
Physical Disk 0:0:1 - Online
Physical Disk 0:0:2 - Online

Physical Disk 0:0:1 down , we tried to replace it with 600 GB but it did not rebuild but it shows like this in Physical Disks : 0:33 (check attached) Online
We assign it as as "Global Hot Spare" (which is Wrong) and new hard drive has been built as hot spare.

Today we received new 300 GB, so we replace the 600 and it has been built without issues, the Led blinking Amber instead of Green and Virtual Showing like this :

Physical Disk 0:0:0 - Online
Physical Disk 0:0:1 - Removed
Physical Disk 0:0:2 - Online
Physical Disk 0:33 - Online

And status of Virtual Disk is Green, I am attaching some images for more info.

Is this OK ? Can we restart the server ?

Thank You
virtual-disks.JPG
Virtual-disk-0-components.JPG
physical-disks.JPG
Physical-disks-.JPG
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Hi we currently have had a failed harddrive in our server i have replaced the drive i no seem to be gettin a warning as posted below thanks chris
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I 'm stuck in this problem and have no Ideas.
Can somebody help me, please?
Thank you
Uli
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i have ibm x3200 m3 server with hardware raid 5 configure (4 hdd) with simple swap . so how to know all 4 hdd status. & what to do if os is crash
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Hi,

I bought HP DL380-G4 server from eBay and it seems to work but I'm having problems installing Win 2003 OS- I've 6-hd @ 146 GB/ - I created the RAID containers- 2-RAID-1 and 3-RAID-5.  I tried to separate 6th had as a spare but I unsuccessful or couldn't figure out how to-?
This is my home network- lab I want to practice with it before joining the server team in a month or so.  
I tried to run SmartStart 8.70B for x64 and booted to the CD but it ran for a good 5-7 minutes loading but then I was left with a HP screen and no activity. So I decided the power down the server.
Windows is not able to see the hard drives? What am I missing here?
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RAID

RAID stands for Redundant Array of Independent Disks.

RAID is data storage technology that allows multiple drives to be used together as a single virtual drive for reasons such as fault tolerance, reliability and performance.

There are several different levels of RAID that determine how the data is stored and the level of redundancy achieved across the drives.