I am currently running a combination of RAID5 SATA Constellations and RAID5 SAS Constellations on 2 identical LSi Megaraid 6GB/s SAS RAID5/6 capable PCIe Cards and need to expand.
Both cards have twin 8087 Mini-Sas Ports and up till now, I was using them in their most basic config, 1 cable per port, 4 drives per cable in a home built custom setup.
I have come to the point now where I need to decide carefully how to move forward, as I don't have enough spare non-RAID HDD storage to back everything up before I break the arrays and upgrade to a new RAID card with more ports, so I am looking at putting a SAS Expander into the mix, essentially to turn each single port into 4.
My choices on the used marketplace are fairly common, simple and basic, as I am sure that many have done the same.
The current choices are (in the $20 market that is) the HP "24 port" or the IBM "16 Port".
Question#1: Which card would YOU (or have you) used to expand your controller ?
Question#2: With simply throwing the Expander in between the current arrays and RAID card(s), will I be able to keep all of my data without losing the array into ?
I am leaning towards picking up the IBM branded "16 port" as it is advertised as being a 6GB card, where as the HP is advertised as a 3GB solution.
I see neither the additional ports or the drop in speed as a positive or negative either way, only compatibility.
Thanks in advance to anyone who can help me out with this one.
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This is what I have, scalable (cascade) not cheap but, you get what you pay for. It's going to depend on your raid card.
https://www.newegg.com/Product/Product.aspx?Item=9SIAAEE4U63394&Description=sas%20expa...3394-_-ProductIt's not important the problem be solved, only that the blame for the mistake is assigned correctly
have you considered adding nas boxes? i have 3 now and add to them as space is needed. the oldest has over 47,000 hours up time currently with no un-correctable errors.--
"a lot of people are better dead" - prisoner KSC2-303
That's impressive uptime, I prefer to keep my RAID off the lan, I get what you're saying a plausible alternative.It's not important the problem be solved, only that the blame for the mistake is assigned correctly
I don't want my media server to become a 'hobby' in it's maintenance/repair. I want to set it and forget it....within reason of course.