Question about IBM xSeries 226 Server

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Cant create additional raid

Have an IBM X226 server 8448 1BM with 4 x 73GB U320 drives mirrored to give 2 logical drives. Added 2 x 146GB drives and can't create another raid. Is there a limit on the number the controller can handle

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  • martyblue Aug 01, 2008

    No limit mentioned

  • martyblue Aug 01, 2008

    No limit mentioned

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Hi martyblue
Check this for specs:
http://www.redbooks.ibm.com/xref/usxref.pdf

The raid controller onboard is dual channel. Are you using a serveraid card as well? How have you configured the existing arrays? You may need to use the other channel if not already in use. Are the new drives ultra320 drives of same speed?

Posted on Aug 15, 2008

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If there is a limit this would have been mentioned in the features of the product

please have a check

Posted on Aug 01, 2008

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1 Answer

What is the maximum Storage space that a IBM x226 Server can be scaled


6 x 300GB (largest available U320 SCSI HDD Capacity) = 1800 GB

Mar 26, 2015 | IBM Computers & Internet

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Ugrade of DL380 G4 Server HDD Raid Array 36GB --->146GB Required


Do a ghost on the first hard drive install ghost on new hard drive and replace, I can provide more details on procedure just ask

Jul 25, 2008 | HP Compaq ProLiant DL380 G4 Server

Tip

Implementing RAID 1 in Windows Server 2003 using VMware!


This is a simple tutorial about creating a RAID 1 in VMware for IT people. VMware, well I think you know already about Server Virtualization.Its a well known product.
Let's discuss about some of the techniques related to Load Balancing or Fault Tolerance.....The Disks here used are Dynamic Disks.
RAID - Reduddant Array of Independant (Not much Inexpensive these days. That term suites no more) Disks. There are two types of RAID:
  1. Software RAID - Implemented via the OS or with the help of a Software. Not much efficient however.
  2. Hardware RAID - Hardware level RAID. Much more efficient and Fault Tolerant.

The idea to use a set of disks or an array is to increase the performance (Load balancing) and provide Disaster Recovery (Folt Tollerant).
RAID 0 - StripingThe fastes of all the RAID configurations. This is known as Striping. Striping is the process of Writing data Sequentially to or Read from more than a single Hard Drive (or a Storage Device).First the data is broken up into chunks or blocks. Then the writing process will be accomplished. The process of writing will be done Simultaneosly onto Strips. The performance of reading and writing increases because all the Heads are working all the time
RAID 1 - Mirroring,DuplexingAs the name implies, it creates a Mirror of one Disk onto another. Data will be written to Both the Disks. So if one disk fails other one can be mounted or it can be used to Restore data.There can be a deadlock how ever. The Disk Controller. RAID 1 uses a Single Disk Controller thus a Single point of failure.We can avoid this easilly with the use of Disk Duplexing which means usage of 2 Disk Controllers.
RAID 2 - Striping with ParityThis is similar to RAID1 but with an added feature known as Parity. One disk - typically the last one - is used to store somethings called Parity bits. With the use of these Parity Bits, the lost data can be easilly generated. This uses Logical XOR Operation. When writing, it XORs every data written onto HDDs and stores in the Parity Disk. When one Disk fails, thet PD is XORed with other Data bits on the functioning Hard Drives. This is a very effective technology in terms of Fault Tolerance. But Performance is pretty low.
RAID 3Similar to RAID 2 but instead of using Strips which are in Bits this technique uses Strips in Bytes. That increases the performance over RAID2.
RAID 4Strips data (Blocks) and uses a Parity Disk. Requires at least 3 Drives. Not widely used.
RAID 5The most popular method. Requires at least 3 Disks. Disks are used to store Parity data as well for each perticular drive. Data Stiped in Bytes (uses block-level striping with parity). Supports Unlimited number of Drives. Failure rate Drops when the number of devices increas.High speed reads can be performed. But writing is pretty slow in this approach.
Note: The non-standard RAID levels 5E, 5EE and 6E extend RAID 5 and 6 with hot-spare drives. Other non-standard RAID levels include: RAID 1.5, RAID 7, RAID-DP, RAID S or parity RAID, Matrix RAID, RAID-K, RAID-Z, RAIDn, Linux MD RAID 10, IBM ServeRAID 1E, unRAID, and Drobo BeyondRAID.
So how are we going to implement such a structure in VMware?That is quite easy. This is an example of Disk Mirroring. Each disk has to have Similar Capacity.
  1. Click on "Edit Virtual Machine Settings".
  2. Click on Add ->Next-> Create new Hard Disk.
  3. Select SCSi.
  4. Give a Suitable Disk Capacity for new Disk.
  5. Give a "Name" and Browse the storage location.
  6. Click on Finish.
  7. You have to Repeat the steps to create the number of Disks that you require. You have to have 2 Disks. Do not use the Main Drive. Use Separate Disks.
  8. Click on OK.
  9. Click on "Power on this Virtual Machine".
  10. After booting up the machine, its the time to implement the Mirrors.
  11. Log in.
  12. Right click on My Computer and select "Manage".
  13. Click on "Disk Management".
  14. Get the "Convert Disk Wizard".
  15. Select the 2 disks (tick on the check boxes).
  16. Click "Next -> Finish
  • Implementing RAID1
  1. Right click on the Disk n which your first added drive (n = the number).
  2. Select "New Volume".
  3. Select the option "Mirrored".
  4. Click on "Next".
  5. Add the Disks from the left hand list box to the right hand list box (the two drives that you have created).
  6. Click on "Next".
  7. Assign a Drive Letter.
  8. Format using NTFS. Make sure you provide a "Volume Label".
  9. That's all what you need to do!
  10. Wait until the Volumes get formatted and Synchronize.
  11. Implementation of the other technologies are similar to the above procedure.
Hope you would enjoy this tutorial.Thanks!
-Lasitha

on Jun 30, 2010 | Computers & Internet

1 Answer

Windows server 2008 raid setup on a dell poweredge 2850


2 drives indicates they are RAID 1, which are mirrored. 2 x 36GB = 36GB. This is an industry standard config. If you make any changes you will lose the array making it RAID 0 (no RAID - no longer hot swap), and or the complete loss of OS / data.

Instead make another logical drive for data storage. You need three or four drives to set up as RAID 5, again an industry standard config.

Make sure to back up in all instances. GL

Nov 14, 2012 | Dell PowerEdge 2850 3.8GHz 2u Server...

1 Answer

In my IBM X226 server 2 HDD became unavailable in RAID 5 configuration. now I have replaced the hard disks and rebuild process is continuing. 1962 operating system not found error message is being shown...


Raid level 5 gives you some redundancy in your raid however it only allows you to lose one hard drive, two hdd lost would not permit to recover from. the parity bit can rebuild one hard drive but not two, sorry your raid might be lost

Aug 15, 2010 | IBM xSeries 226 Server

1 Answer

I have an HPL ML server with 146GB x 3 under RAID 5. I have 3 slots free. Now I need o add 320 HDD to these slots and configure different raid for them and to display the same as a different partition. Is...


dear mjabim,

it is possible...

actually raid has formed with hdd lun noand id nos ,

your old raid may formed with 1,2,3 id's

if you are adding these three disks

it will display as a physical dries in your raid bios and also it will not be covered under your old raid

you create one more raid array on your with those new disks

when you are these things , you have to do very carefully ...

for additional info please reply with raid card model for getting info about raid bios

Aug 11, 2010 | HP Compaq ProLiant DL380 G5 Server

1 Answer

Confuguring raid5


Hi

You would need 4 Hard disk drives in total. you would need to create 2 RAID 0 (striping) and then Mirror them (RAID 1). to elaborate, HDD A&B will be at RAID 0 as well as HDD C&D. after, you would have to Mirror your two RAID 0. (raid 0+1 is also known as raid 5)

Hope this helps.

Jul 09, 2010 | IBM x3400 Server

2 Answers

Raid 1


there must be some key on the startup to enter into the raid menu. And in that raid menu you can create raid .

Jun 23, 2009 | IBM x3400 Server

1 Answer

Raid configuration


When your system boots up you should see an option to access your raid controller if not or if your system doesn't see the controller at all you will have to download the utility software from IBM, but you need to be careful any change you make in the configuration of the disks will delete all data on your drives. This is non-recoverable loss. The utility has help and is fairly easy to understand.

Mar 24, 2009 | IBM eServer xSeries x226

1 Answer

Raid problem


You can retrive the data but it will not be stable.You should buy 10k drive

Feb 28, 2009 | Dell PowerEdge 1800 Server

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