By: Gerald Connolly
@thin_techie – thats one of the RAID levels we don’t use (2, 3 or 4 can’t remember which, it doesn’t matter.) Mainly because it means the parity drive becomes a bottleneck for performance.
View ArticleBy: Prabhu
Thanks for the reply! May be I misunderstood the concept. Let me explain the way I was thinking, RAID0 concept uses 2 disks and the RAID card writes the content to the first disk and also to the 2nd...
View ArticleBy: Gerald Connolly
@prabhu – No, you are confusing RAID0 which is just a stripe, with RAID1 a mirror. If you use RAID0 (which you cant on the single disk in your laptop) it writes one chunk on the first disk and the...
View ArticleBy: Prabhu
Gerald, Thanks for the reply. Sorry I misunderstood the concept, it was RAID1 and not RAID0. Now then, Correct me if i’m wrong, if i have a RAID card and an extra disk, I can make use of RAID1 concept...
View ArticleBy: Gerald
@Prabhu – You are not wrong, but finding a RAID controller for a Laptop might be the problem, there maybe some out there but i havent personally seen one. Now that doesnt mean you cannot do RAID,...
View ArticleBy: MRAJA
Really comprehensive memorable and assisting presentation. Please assist in ROM BIOS and their role in computer organization and architecture Thank you very much.
View ArticleBy: Gerald
@S.K.JHA = Not sure if you are asking a question or trying to make a point? If its a question: Yes They both support h/w RAID10, I don’t think W7 does s/w RAID10, WS2003 might. If its a point: Not sure...
View ArticleBy: Gerald
@vinayagamoorthy 1) Why RAID? – Lots of stuff on the web to explain this. e.g. http://en.wikipedia.org/wiki/RAID 2) How many spindles – what you mean you didnt read the above explanation properly? The...
View ArticleBy: hems
Hello Ramesh Natarajan, can u send me the code (any language c or c++ or java) for different RAID levels…..
View ArticleBy: Gerald
@hems – The ideas are simple, but the code is usually Proprietary, and is often implemented as microcode in the hardware, so its unlikely that you will be able to get your hands on the source code. But...
View ArticleBy: fiardaus
Detail about our system and env We have 3 system 1. Production server – RAC DB ( current Disk RAID1) 2. Report Server – Single DB ( current Disk RAID1) 3. Backup Server – Single DB ( current Disk...
View ArticleBy: Gerald
@fiardaus – Completely inappropriate entry for this page which is supposed to just give you an idea of how RAID works. You should redirect your question to a more appropriate forum such as...
View ArticleBy: Gerald
@girish, what parity in general or how it applies to RAID? So in general its used as a way to validate data against corruption, tink of the bits in a byte, use 7 bits for data and 1 for parity and we...
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