Linux Software Raid Vs Hardware Raid Setup
At the high end for mirroring I could have 2 not so top of the line controllers with minimcal cache, let's say - each at half the price of the expensive controller (which is approximately correct for some actual gear I've scoped out) - each controller with its own chain of drives.. Also, the SATA vs SAS argument is very applicable here as I would never inflict the pain of running a SATA hard RAID setup on myself.. My suggestion is that soft RAID is great for bulk storage, poor for availability for system drives.. You still would not use it for the system drive I manage all my bulk storage using ZFS (similar to storage spaces), and it makes me feel comfortable knowing that I could recover a set of disks out of a server and rebuild them on any commodity hardware.. I have backups of my backups (and replication to another site too!), but you never know what will happen right? It's a double bonus in that the tools and procedures to recover the soft-raid will stick with me between hardware refreshes. 1
g 5 - 4TB drives vs 10 2-TB drives? How much difference would adding 500 meg of cache to each controller be so that the aggregate is 1 gig just as with the expensive controller? Does Windows software mirroring allow for 'spare ready-to-go' hot swap as is available in RAID configurations - you setup an extra drive in the RAID unit that lays dormant until such time as a failure of a drive in the RAID and then it gets swapped in automatically.. For availability, nothing beats hardware RAID, though in the near future I suspect more of us will be implementing services in a highly available fashion on the network instead of investing heavily in 'bullet-proof' chassis.. I would not recommend using software RAID to protect your system drive In the disk manager in 2008, you get RAID 0, 1, and 5.. Cardio pc link software deutsch drahthaar With a software mirror I could at the low end just have two arrays of 10 TB drives on a single drive chain.. 2) 'Fake' raid vs Software raid: When I bought my motherboard, (The ASRock ConRoeXFire-eSATA2), one of the big selling points was an on board raid, however some research revealed that rather than being a true hardware raid controller, this was in fact more than likely what is know as 'fake' raid. 2
We have had quite a few discussions about the differences between hardware and software RAID and I am hoping I can get some input on the topic.. Too many issues with drives being rejected by the array due to firmware funkiness, whereas a soft RAID is very tolerant of SATA drives.. For instance let's say I had 10 TB I wanted to mirror as opposed to hardware RAID'd.. In the latter two cases the obvious extra cost is more drives but let's say ease of transportability is determined to be worth it in this case - e. 3
I know it's difficult to give hard numbers but approximately what kind of a hit would there be with scenario 1 - RAID - vs scenario 2 - simple software mirror - vs scenario 3 - dual controller mirroring? Would the size of the drives make a difference e.. g Ability to move the drives and/or controller to another system if there should be a problem. ae05505a44 https://johnstanentio.themedia.jp/posts/15322057
RAID field experience is what I primarily want - not just technical but general 'sense' of how things would work - but that being said any links I can be directed to for technical comparison of the scenarios I have outlined that would be appreciated as well. Click