Raid 5 or 6 on the ssd for esxi?

colleagues I would like to know does anyone have experience using ssd drives in RAID 5,6 or 10 ?
at the moment there is server hp pro dl360 g10, controller HP Smart Array P408i-a SR Gen10 and drives Intel DC S4600 960GB (8 PCs)
it is planned to organize esxi servers with 10-15 virtual machines with different content (databases, web servers, win, linux), there are several questions
1) this controller has hp smartpath, when activated, the linear velocity is much lower, about 2 times than when you enable the integrated cache, it makes sense on(smartpath or off) ?
2) on the basis of the question, it makes sense to do RAID 5 or 6 if still all the SSD is written from the data ? it turns out by the end of the volume recording the ssd will have to change all the disks at once if which had not failed
3) in General, who have experience of using SSDs in raids for a long term(3-5 years) how to behave ssd if the power is served by 2 beams via UPS 2 online and operational-replaceable battery in the controller ? well, in General, as if in perfect conditions )
March 12th 20 at 08:02
2 answers
March 12th 20 at 08:04
Take SSD for the speed, the more intelligible to the entry server SSD.
RAID5 or 6 is great for storage cost GB price significant impairment of writing performance.
That is not very clear for what purpose you are considering 5 or RAID 6 on a good SSD. If the volume is important - then take the cheaper S45xx

and generally those who have experience of using SSDs in raids for a long term(3-5 years) how to behave ssd

Intel - great acting. Even with food problems, they have full-time the capacitor is holding enough power for the correct recording of the entire disc that promised system. The cakes are described as Enhanced Power Loss Data Protection
We also use a lot of Intel s various years (a long time for a hundred pieces) was Changed mainly because the volume rested. With a disk failure occurs only once. And it's all in the conditions under constant load postgresql.
In General, we unreservedly recommend to take servers Intel SSD (if possible) for reliability and predictable latency under load. Other discs - very much differently behave.

2) on the basis of the question, it makes sense to do RAID 5 or 6 if still all the SSD is written from the data ? it turns out by the end of the volume recording the ssd will have to change all the disks at once if which had not failed

I don't see the point in RAID 5/6 on a good SSD Lifetime Writes without touching

1) this controller has hp smartpath, when activated, the linear velocity is much lower, about 2 times than when you enable the integrated cache, it makes sense on(smartpath or off) ?

Better softraid. Seriously. No kidding. Dumb HBA and softraid.
hardraid a good SSD it is necessary or very hard to configure well knowing your controller or you will be stopped by the performance of the controller, not the drives.
PS: why do you need the linear velocity of the base and the path? Test random io.
March 12th 20 at 08:06
colleague thank you very much for the statistics and the reply, sorry for the long answer. these MICS were taken as the most compatible under the controller Board and the communication with hp tech support. if not a trade secret, how do you change discs when the resource comes to an end, once the whole array ? while transferring data to another server or one ?
about speeds, the first thing that came to hand to test ) esteystvenno random io will watch this competition settings, the figures would be higher

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