For a Dell R710 2U server with 6x 146 GB 15K RPM drives, I can Choose the following controllers:
> SAS 6 / iR integrated, x6 chassis [automatically included]
> PERC H200 integrated RAID controller [additional US$199]
> PERC 6 / i SAS RAID Controller, 2×4 connector, built-in, PCIe, 256MB cache [additional US$299]
> PERC H700 integrated RAID controller, 512 MB cache [additional US$499]
> PERC H700 integrated RAID Controller, 512 MB NV cache [additional US$699]
> PERC H700 integrated RAID controller, 1 GB NV cache [additional US$799]
If important, the server will run Windows Server 2008 R2, SQL Server 2008 R2 and IIS, and basically host various websites with different levels of complexity and SQL activities.
I want to run 3 RAID-1 arrays (2 disks each), the first There are OS/TempDB, etc. on the array, SQL data on the second array, and SQL log on the third array.
Thank you very much for your help. Thank you!
“512MB NV Cache” means non-volatile. I don’t know exactly how Dell does it, but I strongly suspect that it has a normal RAM-based cache. The supercapacitor on the card has enough energy to submit the cache to flash memory in the event of a sudden power outage. Compared with a battery-powered cache, this will take longer than a power outage.
1GB NV Cache only has more caches.
The amount of data you put in is not so large that multiple internal connectors are not important.
If you trust your power environment very much, battery-supported Caching will save you some money, not a non-volatile caching option.
I don’t know much about the differences between the various Dell RAID controllers for my scenario Importance, if you guys can help me choose the right Dell RAID controller, it would be great. I don’t want to make money by buying things for no reason, but at the same time make sure I get what I need.
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For the Dell R710 2U server with 6x 146 GB 15K RPM drives, I can choose the following controllers:
> SAS 6 / iR integration, x6 chassis [auto included]
> PERC H200 integrated RAID controller [additional US$199]
> PERC 6/i SAS RAID controller, 2×4 connector, built-in, PCIe, 256MB cache [additional US$299]
> PERC H700 integration RAID controller, 512 MB cache [additional US$499]
> PERC H700 integrated RAID controller, 512 MB NV cache [additional US$699]
> PERC H700 integrated RAID controller, 1 GB NV cache [additional US$799]
If it matters, the server will run Windows Server 2008 R2, SQL Server 2008 R2 and IIS, and basically host various websites with different levels of complexity and SQL activities.
Thank you very much for your help. Thank you!
For Dell, “256MB cache” means that there is a 256MB battery backup cache on the RAID card. This is the cache used by the card for I/O operations. It will cache Writes in this storage to reorder them to use the disk more efficiently. In the event of a battery power failure, the battery provides voltage to the cache RAM. I believe it can last up to 2 days.
“512MB NV Cache” means non-volatile. I don’t know exactly how Dell did it, but I strongly suspect that it has a normal RAM-based cache. The supercapacitor on the card has enough energy to Submit the cache to flash memory in the event of a sudden power failure. Compared with battery-powered cache, this will take longer than power interruption.
1GB NV Cache only has more cache.
The amount of data you put in is not so large that multiple internal connectors are not important.
If you trust your power environment very much, the battery-backed cache will save you some money, not easy Loss of caching options.