That was why the term RAID10 was coined and in general everybody has adopted this as meaning Striped Mirrors, ie at the bottom level are Mirrorsets that have been Striped, although last time i looked Dell had some documents that defined it as mirrored-stripes, which is clearly incorrect. Each RAID level offers a unique combination of performance and redundancy. AS you rightly point out Striped-Mirrors have redundancy, whereas Mirrored-Stripes do not. So the terms became ambiguous, and there is a move to deprecate these terms. Josh, you are right that RAID0+1 & RAID1+0 have become confused as different manufacturers used the two forms to mean different things. Write operations will be slow.įollowing are the key points to remember for RAID level 10. Use this for DB that is heavily read oriented. Best cost effective option providing both performance and redundancy.Good redundancy ( distributed parity ).Good performance ( as blocks are striped ).Excellent redundancy ( as blocks are mirrored ).įollowing are the key points to remember for RAID level 5.Don’t use this for any critical system.įollowing are the key points to remember for RAID level 1.No redundancy ( no mirror, no parity ).Excellent performance ( as blocks are striped ).A, B, C, D, E and F – represents blocksįollowing are the key points to remember for RAID level 0.This article explains the main difference between these raid levels along with an easy to understand diagram. On most situations you will be using one of the following four levels of RAIDs. RAID stands for Redundant Array of Inexpensive (Independent) Disks.
0 kommentar(er)
