Question about IBM System x3850 M2 Server - 2 x Xeon 2.4GHz - 8GB DDR2 SDRAM - Serial Attached SCSI RAID Controller...

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71413RU M2 - I tried installing serveraid 10 M2 and can't configure my last two drives to a RAID 1. I booted to LSI and it doesn't see the controller, yet I have my first two drives as a RAID 1 which is the c: What am I doing wrong? I've configured many IBM Servers and installed ServeRaid to configure my drives.

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SOURCE: Troubleshoot ServeRaid problem on IBM x335 Box

The likelyhood that 2 drives fail at the same time is remote. I would first look to teh controller as the problem. Also, check the power supply. The only common things are the 5V and12V supply.

Dan

Posted on May 12, 2010

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1 Answer

Raid configuration


That's probably because RAID 5 only tolerates 1 HD failure, (unless you have hot spares, in which case you can have many failures -provided only one fails at the same time...).

RAID 5 arrays can tolerate no more than one member drive failure.

Nov 08, 2013 | LSI Logic Computers & Internet

1 Answer

I have a server with a Serveraid 4H controller card, set up with two Arrays. Array B has 3 72GB drives set up as RAID 5. I would like to add 2 more drives to this array. Is this possible or do I have to...


I am not familiar with your RAID controller card but as long as the controller can see two additional drives, it shouldn't be difficult to add two new drives to your exisiting RAID 5 configuration.

You will probably need to reinitialize the RAID configuration for discs to copy all the parity information so you should refer to the documentation on re-initializing the RAID.

May 25, 2012 | Computers & Internet

1 Answer

Hi, within the previous 12hrs my e-series server bombed out - there are two issues (1) Memory DIMM malfunction (2) serveRAID-7k error 2807... I removed the faulty memory DIMMs, but the RAID error still...


You can recover RAID data from hard drive with RAID recovery software easily.
Tenorshare Data Recovery Enterprise is a comprehensive data recovery software that supports RAID recovery for RAID 0 and RAID 5. Lost data in RAID 0 and RAID 5 can be deeply scanned and restored immediately. Meanwhile, files and folders in RAID 0 and RAID 5 can be copied to other partitions directly. http://www.any-data-recovery.com/product/datarecoveryenterprise.htm

Aug 29, 2011 | IBM ServeRAID-7k Controller (71p8642) SCSI...

1 Answer

Steps to configure raid 5 on ibm xseries 232


hi,
which material have you ? : CD
which server ? xseries xxx model type ?
If this is the unique SCSI adapter in your system
or the unique seen, you must:

0) download
90p2772.iso 505,085,952 IBM ServeRAID support CD v6.10
or use what you have.

1) Boot from cd (linux) to configure RAID , before install W2K Server

2) run 23k4684.exe (previous site) in another pc and make a floppy

3) boot from W2k CD and press F6 when proposed

4) insert floppy previously made

5) when OS is installed, or from CD or using 23k4687.exe,
install "IBM ServeRAID Manager", to see activity.

Oct 28, 2010 | IBM eserver xSeries 232 8668

1 Answer

Can a raid5 be expanded to include an additional disk on the dac960prl or must the raid be destroyed and re-created?


Hi,

As a rule of thumb, a raid 5 array can be expanded to include additional drives. This is done during the boot process and then going into your RAID controller setup. You would then go into the RAID configuration and add the new drive to the array. This was the simplified explanation but i think you get the idea.

Things to consider,
DO NOT remove the RAID array unless you dont care about losing data.
DO NOT try to add a smaller drive than what is currently part of the array.
When possible, the new drive should be identical to the existing drives, but I have added same size, same speed more than once and it will work.
All of the drives you want as part of the array must be on the same controller.

Hope this helps,
Brian

Jun 30, 2010 | LSI Logic Mylex AcceleRaid 150 DAC960PRL...

1 Answer

Troubleshoot ServeRaid problem on IBM x335 Box


The likelyhood that 2 drives fail at the same time is remote. I would first look to teh controller as the problem. Also, check the power supply. The only common things are the 5V and12V supply.

Dan

May 12, 2010 | IBM eServer xSeries 336

1 Answer

Slow transfer from SATA II (IDE) drive to 3 SATA II Drives configured as RAID (1). Drives wouldn't format until we installed the OS onto the RAID -- but it wouldn't install completely. We boot from the...


It appears you have made an error with the RAID configuration. RAID 1 is mirroring and requires an EVEN number of drives unless one is a hot spare. Also, RAID 1 is for redundancy and is slower than a single drive or RAID 0. Verify your RAID configuration and make sure you have RAID 1 and not RAID 0 or RAID 5 which can be an even or odd number of drives.

Nov 17, 2008 | Computers & Internet

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