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Hey all, I'm new to the forums and was hoping for a bit of guidance. I've recently picked up a Dell T610 for my house as a decent starter to my homelab and am looking to replace the current PERC 6/i it's running now with a H700 1GB cache. I was recommended to look at getting a 9265-8i instead for the increased performance. After doing some reading up on both cards and the pros and cons to each, I wanted to come here and ask the community what real gains I would see from using the 9265-8i over the H700 and if I would have any issues running this card in a T610. I'm aware that is runs a dual core chip and from what I gather it should run faster, but how much faster? I'm not having much luck locating any side by side comparisons. Here's what my configuration looks like if it will help:

Disks:
3x Dell 600GB SAS 15k Model HUS156060VLS600 in RAID 5 for OS partition
5x Dell 2TB SAS 7.2K Model ST32000444SS in RAID 5 for Storage partition

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If you have plans of only running hard drives, I don't think you will see any difference between those cards.

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IIRC the LSI MegaRAID 9265-8i is a generation newer (I could be wrong-- in my 2 minutes of reading the Dell spec sheet, I didn't see which RAID-on-a-chip (RoC) it uses) than the H700... but as said I doubt you'd see a huge difference.

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Any idea what the clock speed is? IIRC for those era of cards, early ones were 800mhz and LSI was able to push it up to 1.2ghz in the successors...

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2 minutes ago, continuum said:

Any idea what the clock speed is? IIRC for those era of cards, early ones were 800mhz and LSI was able to push it up to 1.2ghz in the successors...

From what I gather, it's still 800Mhz for the LSISAS2208

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Performance should be able the same then, the MegaRAID is the same LSI 2208 RoC at the same 800mhz core clock (per Storagereview :P ), so's the latter 9270-8i (9270-8i goes to DDR3 cache memory with more bandwidth and a PCI-e 3.0 x8 interface, but I don't think either of those would affect performance much in your use case). It's not til the MegaRAID 9361-8i that goes to the LSI 2308 RoC if memory serves, which has a 1.2ghz clock.

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That's what I was hoping to find out and possibly even see numbers on. I'm wondering how much more the additional core lends to performance.

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There's some reviews, but most I know already are doing all-SSD testing even as far back as the LSI MegaRAID 9260-8i, I don't know how much luck you're going to have finding hard disk testing... time to exercise those Google skills?

 

https://docs.broadcom.com/docs/12353177

(warning: PDF link) Is LSI Logic's benchmarking guide from a few years ago... covers the LSI SAS 1078, SAS 2108, and SAS 2208... in no case does it say the RAID core is the limit but then they wouldn't keep making the RoC more powerful if it didn't help........ although again as I said above the fact that we have rapidly escalated from HDD to SSD and done a massive uplift in potential IOPS might be partially or entirely why, as opposed to modest performance increases seen from generation to generation in harddisks.

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