RAID on SSD's
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@scottalanmiller said in RAID on SSD's:
@mattspeller said in RAID on SSD's:
@francesco-provino said in RAID on SSD's:
@ccwtech said in RAID on SSD's:
I set up my servers with RAID 10 and 10 or 15 K RPM Drives and a dedicated RAID card and an SSD Drive for CacheCade.
However with the decrease in pricing for SSD drives, I would like to start using them more in servers.
- Still do RAID 10 with SSD's?
- Is a dedicated RAID card still needed if using SSD's?
- Usually RAID 5 makes sense. Still RAID 10 if you want maximum performance. Be aware that you can saturate almost any SATA/SAS controller with the performances of 6-7 SSD.
- Apply the same consideration for the HDD.
I actually came here to ask about #1 - is that 6 drives in raid10? Has anyone measured this / tested it etc?
Yes, xByte tested that. It saturated REALLY low.
That's interesting. I didn't know that.
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@scottalanmiller said in RAID on SSD's:
@mattspeller said in RAID on SSD's:
@francesco-provino said in RAID on SSD's:
@ccwtech said in RAID on SSD's:
I set up my servers with RAID 10 and 10 or 15 K RPM Drives and a dedicated RAID card and an SSD Drive for CacheCade.
However with the decrease in pricing for SSD drives, I would like to start using them more in servers.
- Still do RAID 10 with SSD's?
- Is a dedicated RAID card still needed if using SSD's?
- Usually RAID 5 makes sense. Still RAID 10 if you want maximum performance. Be aware that you can saturate almost any SATA/SAS controller with the performances of 6-7 SSD.
- Apply the same consideration for the HDD.
I actually came here to ask about #1 - is that 6 drives in raid10? Has anyone measured this / tested it etc?
Yes, xByte tested that. It saturated REALLY low.
http://www.xbyte.com/blog/testing-the-limits-of-the-dell-h710-raid-controller-with-ssd/
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@ccwtech said in RAID on SSD's:
@scottalanmiller said in RAID on SSD's:
That's not a way to measure RAID reliability. I actually a video about why we never mention "number of lost drives" in the SAMIT queue.
Which one? You have several RAID videos.
It posted.
